This last weekend, after only 2 months, it failed also. Gas and air. Rough idle on 60 hp 1999 yamaha 2 stroke? If the idle adjustment screw is all the way in (or out, as the case may be), then re-check the link & sync. I have a 2004 Yamaha F115 four stroke that has me baffled It runs great at just about any speed except low idle / in gear (out of gear, no issues). My 2003 fx140 began having problems last season with rough idle, no idle, sluggish performance,engine dying, etc. Runs perfect and smooth on the throttle or cruising. Download a 25HP Yamaha, Suzuki, Evinrude, Mariner, Johnson, Mercury outboard repair manual in seconds. Engine will not start or starting difficult 2. The bike refused to maintain an idle at stop lights and died on me twice. 7 seconds faster. Side by Sides For Sale in Lanark, IL: 1 Side by Sides Near You - Find Side by Sides on ATV Trader. Participant. then last. Last year we had a few times when at full throttle and it would bog down and die. (Note: The engine idle speed is controlled by the computer and is NOT adjustable. I was having intermittent issues with rough idle and stalling. It also runs great while under way. Variable Trolling: The F115, F90 and F75 feature Yamaha’s Variable Trolling RPM Switch (VTS®). This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. Keep an eye on the flushing attachment to make sure the cups don't slip off of the water pickups, and don't rev up the motor while you're flushing it, as there isn't enough water pressure to cool the outboard. With 25-inch shaft options for the F115 and F90, this horsepower range offers prime power for mid-size craft, including anglers trolling large, rough water in 25-inch-transom multi-species boats. When I'm running it's perfect but when I pull the throttles back quickly to idle the port motor stalls. Top end is fast, idles very smooth. The engine should probably be run with a laptop hooked up to it so you can see what's going on inside the engine. any idea what;sz the issue or is this normal on this year model. under full throttle it seemed to work fine. Almost like I'm dragging the whole power train with the weight of the ATV. and shut off. Re: Yamaha G1 running rough at low speeds. 2018 F115 In-Line 4 - 20" Shaft 2018 Yamaha F115 In-Line 4 - 20" Shaft. Many factors contribute to these problems including water in the fuel, utilizing ethanol fuel, trash in the fuel tank and an engine that doesn’t run for weeks and sometimes months on end. starts right back up again and idles fine. My 2005 vx110 sport has 19. Variable Trolling: The F115, F90 and F75 feature Yamaha’s Variable Trolling RPM Switch (VTS®). Consult your Yamaha dealer or boat manufacturer for fur- ther information on determining the proper mounting height. I have a 2001 F115 Yamaha, last week I fished for three straight day's trolling each day and running back to the dock at the end of the day at 5000rpm's for about 15min. Cleaning out the carburetor to remove carbon deposits is probably a good place to start. the request is at 29% cause the engine is now idling higher than the ECU expects and it is trying to lower the idle speed. Loose steering 9. An outboard marine engine repair manual is a book of instructions, or handbook, for learning how to maintain, service and overhaul the 200 HP outboard motor to factory specifications. 193): thanks Wrenchin i didnt think of a remote tank and will try that. Any and all products may be withdrawn from sale at any time. even with messing with the idle screw next to the. with Yamaha Talon™ propellers. This is a major plus for anglers. It even allows for sub-idle trolling. Variable Trolling: The F115, F90 and F75 feature Yamaha's Variable Trolling RPM Switch (VTS®). This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. Engine has poor performance, bogging, hesitation, backfires etc. If your vehicle is experiencing rough idling, you'll probably know it immediately. Yamaha CV30: 14 customer reviews on Australia's largest opinion site ProductReview. Finally finished up my 2320 project, new transom, hung a couple 2001 model 200 HPDI yamaha engines with a new powerhead on the port unit. Boat engines have the same operating principles as do land vehicle engines, but having trouble with your boat engine can leave you and your family in a precarious predicament. It also runs great while under way. I pulled it apart and cleaned the idle jet, the main jet and the third pointy screw in the carburetor, and the dang thing still surges. An outboard marine engine repair manual is a book of instructions, or handbook, for learning how to maintain, service and overhaul the 40 HP outboard motor to factory specifications. Hey, everybody today I changed my spark plugs and it was my first time ever to do this. The completely surprising Yamaha Midrange 115, 90 and 75 hp four strokes. I've got dual F225's on my Parker, and lately the port motor has developed a low rpm stumble. My F115 had the same issue, a 115 SHO. Yamaha Outboard is overheating, overheats over heats, running hot 8. 40:1 is good for a 50:1 TCW-3 oil. Outboard engine will not stop 6. Variable Trolling: The F115, F90 and F75 feature Yamaha's Variable Trolling RPM Switch (VTS®). So one morning I woke up, and my 1985 300zx N/A 2 Seater automatic started with the following problems : Rough idle, running very rich, and low power (no balls). 1st, disconnect the throttle cable to see if you get the desired result(if trying to lower idle rpm. What Causes High Idle Problems? The number one cause for high idle is an imbalance in air pressure. dubwicht New Member. INSTANTLY DOWNLOAD outboard repair manuals straight to your computer in seconds. Yamaha additive, and that brought the cylinder down to a 6. My vintage 2007 EF has the dreaded surging idle. Shop Vacuum Hose available to buy now online. any idea what;sz the issue or is this normal on this year model. Easily find your stainless or aluminum prop with our PropFinder. When I got home I did my flush and eng. Yamaha 30hp, rough idle and engine cuts out If this is your first visit, be sure to check out the Forum Help by clicking the link above. Car and Truck Whole Engines, Parts, and Components. 9 has been a pain since the day I got it. 9 that ran rough, the prop was so sensitive on the Honda that a small nick kept our 10' rib from getting on plane, this Yamaha 8 won't idle and is so heavy that our Zodiac 9' fast roller sit's in the water doing a wheely. Working Skip trial 1 month free. My 4 stroke 15 hp (2005) outboard has a hesitation just above idle. It ran great, I had fresh gas in the small internal tank, I used it for about 1 hour+, then I shut it down like normal. How To Tell If A Vehicle Is Idling Rough. I had cleaned out the carb thoroughly and it was all gunked up in there. 1 GPH | Portable outboard Yamaha 4 - 5 - 6. It even allows for sub-idle trolling. I have twin 115 Yamaha four strokes. DOWNLOAD Yamaha outboard marine repair manuals straight to your computer in seconds—fix your problems now. Engine has poor performance, bogging, hesitation, backfires etc. With 25-inch shaft options for the F115 and F90, this horsepower range offers prime power for mid-size craft, including anglers trolling large, rough water in 25-inch-transom multi-species boats. Buy CZHAN Idle Speed Control valve 68V-1312A-00-00, 68V-1312A-01-00 for Yamaha Outborad HP 115HP, F115, LF115, Idle Air Control solenoid, Stepping, Stepper, Motor: Idle Air Control Valves - Amazon. It still has decent power (80-90% maybe as it is now) but I can't figure out why it's popping and won't hold an idle suddenly. Although, I have had quite the rough idle lately. The engine was marginal before, cleaned the injectors and I thought I had it licked. Port engine fired right up but was a little on the rough side. When I'm running it's perfect but when I pull the throttles back quickly to idle the port motor stalls. Manuals contain step-by-step repair procedures, illustrations, pictures and advanced troubleshooting. I did take everyone's advice and started using Yamaha Ring Free at every fill-up and it made a big difference. HHR Performance presents the Graves Motorsports EXY-15R1-CETC Graves Motorsports Yamaha R1 Cat Eliminator Exhaust System 15-19 and other parts you need available through hhrperformance. I have a 03' F115 that has run great until a few weeks ago. My 2003 fx140 began having problems last season with rough idle, no idle, sluggish performance,engine dying, etc. This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. Once it warmed up a bit it would stay on a bit longer, maybe 15-20 seconds before dying, but it's a really rough sounding idle, where it almost dies then shoots up in the rpm's and dies down again. I've rebuilt the carbs replaced the sparkplugs and it seems to still run rough. My new boat has a rough idle, it's a new non- current 2013 model year 70 hp Yamaha. - remove the lhs side-cover, bike out of gear, remove a plug, if you have a TDC finder…. Just let the outboard run at idle for 10-15 minutes, shut off the outboard, stow the hose and flush muffs, and you're done. 193): thanks Wrenchin i didnt think of a remote tank and will try that. Rough idle on 60 hp 1999 yamaha 2 stroke? If the idle adjustment screw is all the way in (or out, as the case may be), then re-check the link & sync. The completely surprising Yamaha Midrange 115, 90 and 75 hp four strokes. A lot of people just sell the 2005/06+ Yamaha Majesty off, at a great loss, because of the ECU stalling and Recall problems, but I am not inclined to take that route GOOGLE SEARCH. Lowest prices & largest selection of Yamaha Outboard engine propellers. No clogged filters. AS soon as you add a small amount of throttle the noise goes away. Engine has poor performance, bogging, hesitation, backfires etc. With 25-inch shaft options for the F115 and F90, this horsepower range offers prime power for mid-size craft, including anglers trolling large, rough water in 25-inch-transom multi-species boats. Step by step automotive repair guide on how to troubleshoot and fix an engine that is idling high (fast) or low (slow). For the running rough issue: I would look at the high pressure fuel filter and change it (should be a 1-2 year maintenance item). Engine has a rough idle 3. Motorcycles - Yamaha Raptor 80 Quad - Short Move, Fast Speed, Rough Rev, Close Yamaha Raptor 80 Quad - Up Idle Short Off, Fast Speed, Close Up, you agree to. Crowley Marine is pleased to offer the full line of Yamaha Outboard & Sterndrive Parts. It even allows for sub-idle trolling. On the F115 model only, the VST is mounted to the backside of the intake manifold (port side). A download outboard repair manual is a book of instructions for learning how to maintain, service, troubleshoot, and overhaul the engine to factory specifications, including procedures for engine wont or. Once it warmed up a bit it would stay on a bit longer, maybe 15-20 seconds before dying, but it's a really rough sounding idle, where it almost dies then shoots up in the rpm's and dies down again. Great Yamaha mechanic - might be able to give you a few expert trouble shooting ideas to try. Finally the day came, where I got to test ride the 3 bikes back to back that have caught my interest. Yamaha Majesty ECU problem. Gas and air. As long as the RPMs are up alittle it's fine. 4 gallon tank and should have roughly 30-40 mpg based on a Google search it should make it like 120 or so. Yamaha additive, and that brought the cylinder down to a 6. however if you unplug any other sensor on that motor it will lock base timing and idle at about 1100 RPM,top speed may or may not be available depending on the sensor. 2015 Yamaha FZR SVHO rough idle. Does your Club Car Gas golf cart run rough with little power when driving. A magnet in the bottom will gather them all together. If it runs rough and now it doesnt start it's probably bad gas. The first question is, can an exhaust leak cause a rough idle? When you have a rough idle situation and it's being attributed to an exhaust leak, it is more likely that the reason for a rough idle caused the exhaust leak. But despite this great variety between different models, Yamaha's troubleshooting tips remain nearly identical for all of the company's four-stroke outboards. This is a major plus for anglers. Re: Yamaha f115 4 stroke rough idle and stall Ok after cleaning the iac valve, testing the tstat, replacing the plugs, and installing new fuel lines and primer bulb. If your vehicle is experiencing rough idling, you’ll probably know it immediately. It even allows for sub-idle trolling. 30 GPH | Yamaha 90 hp 9. but, it won't remain running under 2500rpm's unless the choke is on? with the choke on It will idle and run almost perfectly through all 3 gears??. 1995 Sea-cat SL5C. This aluminum-hull bay boat proved a perfect match for this quick outboard. I took of the air filters and started to mess around and it seems to me when i cover up 3/4 the back side of the carbs with my hand making a bigger air restriction it smootheness out and idle. Normally, a. 0 engine 1999 mercury 200 hp will not idle gear oil for 1975 8hp mercury mercruiser 350 mag won't start compression for 96 johnson 200 1993 johnson outboard 120 running rough tilt&trim manual adjustment for 250hp 2000. If you think you have a problem with your. you will have to take the side panel off, should be 3 screws. In gear, it idles rough (and sometimes dies) and there's a slight hesitation (bog) when first accelerating. 2014 G3 V172FS w/Yamaha F115 FourstrokeThis G3 V172FS Deep V Multispecies/ Family boat is loaded with features and equipped with the powerful Yamaha F115 Fourstroke. 9 that ran rough, the prop was so sensitive on the Honda that a small nick kept our 10' rib from getting on plane, this Yamaha 8 won't idle and is so heavy that our Zodiac 9' fast roller sit's in the water doing a wheely. I did take everyone's advice and started using Yamaha Ring Free at every fill-up and it made a big difference. An outboard marine engine repair manual is a book of instructions, or handbook, for learning how to maintain, service and overhaul the 70 HP outboard motor to factory specifications. This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. DOWNLOAD 25 horsepower Repair Manual Johnson Yamaha Mercury Evinrude Mariner Suzuki This INSTANT REPAIR MANUAL DOWNLOAD for the Mercury-Mariner, Johnson-Evinrude, Suzuki, Honda, Yamaha 25 horsepower outboard engines were designed primarily for factory service 25 horsepower outboard technicians in a properly equipped shop. The completely surprising Yamaha Midrange 115, 90 and 75 hp four strokes. It not only bests the competition, but it also beats Yamaha's previous F115 design, with a zero-to-200-foot acceleration time that's 0. Yamaha Outboard is overheating, overheats over heats, running hot 8. Runs great. The idle speed screw is the spring loaded. YAMAHA 2000-2005 F115 Oil Change 10W30 FC 4M Lower Unit Gear Lube Drain Fill Gasket NGK Spark Plugs LFR6A-11 Maintenance Kit. We have been in business for over 11 years providing our customers with Yamaha OEM parts. site are not that of Yamaha or any other Yamaha. Yamaha f115 "making oil" Someone mentioned installing a different weight oil but I cannot find what they recommended. Although we are a realatively new Yamaha dealer, we are making our parts inventory a top priority and should have most of the items you need in stock and ready to ship. 70 GPH | Yamaha 150 hp 15. One other thing to check is the thermostat, if it is stuck it will never get up to operating temp and will never idle good. i guess if the remote tank dont fix it i will throw in a new pump as the diaphragm isnt but like 20 bucks. A problem with fuel delivery, spark plug operation or metering of the air-fuel charge can cause problems at idle that may not be obvious at higher rpm ranges. if it is still there its your injectors. The completely surprising Yamaha Midrange 115, 90 and 75 hp four strokes. Starts and idles just fine, runs in high rpm's just fine, but when between 800 - 1600 the motor stumbles and looses rpm. It not only bests the competition, but it also beats Yamaha's previous F115 design, with a zero-to-200-foot acceleration time that's 0. re: need help with rough idle yamaha 115 4-stroke sounds like the , injectors again. Once it warmed up a bit it would stay on a bit longer, maybe 15-20 seconds before dying, but it's a really rough sounding idle, where it almost dies then shoots up in the rpm's and dies down again. This is a major plus for anglers. If you are going to change carbs you'd better be prepared to spend some time and money on the job. TOPIC: 1973 Yamaha DT250 Rough idle and wanting to die after getting warm. The next generation of Yamaha's F115 is the lightest four-stroke 115-horsepower outboard available. I got some strong advice to run RingFree at 1 oz per 10 gal ALWAYS - I intend to follow that advice. 3 GPH | Yamaha 200 hp VMAX / HPDI 19. We found the sensor and cut the wires. If it can't get the proper amount of either your cart will have a tough time running well. It even allows for sub-idle trolling. We have been in business for over 11 years providing our customers with Yamaha OEM parts. com FREE DELIVERY possible on eligible purchases. My 2003 fx140 began having problems last season with rough idle, no idle, sluggish performance,engine dying, etc. F150 low rough idle Sign in to follow this. Runs perfect and smooth on the throttle or cruising. This last weekend, after only 2 months, it failed also. If not, I guess I might take good note of the present position of the screws I mentioned and try adjusting them a mite to note the change in rpm but take care not to over-lean out the mixture if it turns out they are idle mixture screws. We have about 5. This aluminum-hull bay boat proved a perfect match for this quick outboard. This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. So I have a 70 hp Yamaha 2 stroke outboard that is running rough. View and Download Yamaha F115 owner's manual online. With 25-inch shaft options for the F115 and F90, this horsepower range offers prime power for mid-size craft, including anglers trolling large, rough water in 25-inch-transom multi-species boats. I used the spark plug DIY to help guide me along for most of it but once I put everything back together and started my car I got a pretty rough idle that felt like the engine was rumbling, I turned it off and it smells extremely rich and the check engine light/Trac light were flashing. An outboard marine engine repair manual is a book of instructions, or handbook, for learning how to maintain, service and overhaul the 25 HP outboard motor to factory specifications. It may be that when your Yamaha outboard motor begins to sputter and cough, particularly at high speeds, you think something's "obviously" wrong with the fuel pump. Yamaha 115 2 stroke rough idle seems to work ok on first startup. This is a major plus for anglers. 2001 Yamaha 115 rough idle. A downloadable repair manual is a digitally delivered book of instructions that provides step-by-step maintenance, troubleshooting and repair procedures. About a month ago it started sputtering as I was idling out of the harbor (after about 5 minutes of idling). Did you know your generator has NO fuel filter? That screen inside the fuel fill port is too course to stop fine enough particulate to clog a jet on your carburetor. pull a fuel sample in a clear glass and let it sit. Re: Yamaha G1 running rough at low speeds. A downloadable repair manual is a digitally delivered book of instructions providing step-by-step repair procedures, maintenance and a troubleshooting guide. I would expect your RPMS at idle to be lower in water because the impellers are meeting resistance. 7 seconds faster. The rough idle would be best described as a vibration. It even allows for sub-idle trolling. Variable Trolling: The F115, F90 and F75 feature Yamaha’s Variable Trolling RPM Switch (VTS®). There is a low oil pressure sensor that will cut it back to idle if it thinks the oil pressure is low. Leaving work today after car had been sitting for 7 hours, I started it and pulled up to the light, about a couple hundred feet away from my parking space. Most recommend changing them at 250 to 300 hours. These things idle rough, thats their nature! If both engines throttle up and smooth out, you're probably good. Finally finished up my 2320 project, new transom, hung a couple 2001 model 200 HPDI yamaha engines with a new powerhead on the port unit. Yamaha F115-LF115C Outboard Workshop Service Repair Manual Pdf is a perfect manual, which contains a lot of information. Variable Trolling: The F115, F90 and F75 feature Yamaha’s Variable Trolling RPM Switch (VTS®). If it can’t get the proper amount of either your cart will have a tough time running well. This reduces operator fatigue for a full day of enjoyable boating. click here to learn more Softcover – 488 pages – Yamaha YZ125 YZ250 WR250 1988 – 1993 Clymer Owners Service Repair Manual Covers the following Models: Yamaha YZ125 1988-1993 Yamaha YZ250 1988-1993 Yamaha YZ250WR 1989-1990 Yamaha WR250Z 1991-1993Contents: QUICK REFERENCE DATA GENERAL INFORMATIONManual organization / Notes cautions and warnings / Safety first / Service hints / Washing the. Brand new 2015 Viking Camo EPS running rough at idle. drained the float bowl and no crud and im runnin. And Yamaha paid for the decarb - so I am a happy boater again. Yamaha F115-LF115C Outboard Workshop Service Repair Manual Pdf is a perfect manual, which contains a lot of information. It is not uncommon with the Yamaha, especially the quick start models, to have a reasonably good idle with gummed up carbs. I had a Honda 9. Basically, shell start up fine and idle around 1500-2000 rpm (full choke) but upon going to 1/2 choke or giving her any throttle, she dies. It starts fine and runs fine until warm then runs very rough. This INSTANT DOWNLOAD 175 horsepower Mercury, Mariner, Yamaha, Suzuki, Johnson and Evinrude outboard engine repair manual was designed for do-it-yourself mechanics and factory trained technicians. Loading Unsubscribe from sphill? Cancel Unsubscribe. Variable Trolling: The F115, F90 and F75 feature Yamaha's Variable Trolling RPM Switch (VTS®). 90 GPH | Yamaha 70 hp 2-stroke 7. Tame rough water with this stable Deep V design! G3 quality components and construction beats those catalog boats in all areas!. An outboard marine engine repair manual is a book of instructions, or handbook, for learning how to maintain, service and overhaul the 40 HP outboard motor to factory specifications. ZMU08083 1. With 25-inch shaft options for the F115, this horsepower range offers prime power for mid-size craft including anglers trolling large, rough water in 25-inch transom multi-species boats. Variable Trolling: The F115, F90 and F75 feature Yamaha’s Variable Trolling RPM Switch (VTS®). Took it for a test drive afterward and I think the issue is resolved. Im sitting there and all of a sudden the car starts to kind of shake, so I look down at the tach thinking its stalling, however it wasnt. I tried to take it apart last summer to see if I could lube it and all the screws were frozen. This is a major plus for anglers. proper idle setting for 85 hp Mariner outboard motor 4 cylinder; repair idle on 9. I suspect that the carburetors need a good cleaning. It even allows for sub-idle trolling. which include a new Yamaha 115 motor for $9000 +500 for install and 2000 for my old motor or I found a few used. Hi all, I pulled the Idle speed control today and made sure the filter on it was clean. A new Yamaha F115 outboard will be lighter and more powerful than the motor it replaces, according to Yamaha, which released specs in January and debuted the four-cylinder four-stroke at the Miami International Boat Show. Yamaha's award-winning, Multi-Function Tiller Handle (optional on F115, F90, F60 and F40 jet models) features an ergonomic design for easy shifting , better grip and less rotation from idle to wide-open throttle. Yamaha 115 4 Stroke Idle Problem Click Here to Login: yamaha 115 4 stroke. The new F115 will reach dealers sometime in the second quarter of 2014, with. What Causes High Idle Problems? The number one cause for high idle is an imbalance in air pressure. About Yamaha Parts House We're the source for any Yamaha Parts you may need - Covers, Accessories, or any Replacement Parts! Yamaha Parts House is owned and operated by Babbitt's Online. Variable Trolling: The F115, F90 and F75 feature Yamaha's Variable Trolling RPM Switch (VTS®). spec stage 3, custom intake, bbm fuel rail, billy boat 3in exhaust,ecs bleeder block,mbc,fmic,bfi mounts,cm flywheel,front mount interccoler, aeb head cat 3652 cams, scat rods je pistons super tech valves and springs. The first question is, can an exhaust leak cause a rough idle? When you have a rough idle situation and it's being attributed to an exhaust leak, it is more likely that the reason for a rough idle caused the exhaust leak. 1973 Yamaha DT250 Rough idle and wanting to die after getting warm. 2006 Yamaha f150 intermittent fault. any idea what;sz the issue or is this normal on this year model. Help!! we occasionally had random stalling/rough idle Mechanic has been speaking with yamaha and others and a faulty main. Yamaha YS828 won't idle. A downloadable repair manual is a digitally delivered book of instructions providing step-by-step repair procedures, maintenance and a troubleshooting guide. Re: Yamaha f115 4 stroke rough idle and stall Ok after cleaning the iac valve, testing the tstat, replacing the plugs, and installing new fuel lines and primer bulb. Why would the oil level make it idle rough? It doesnt die it just shakes at idle. The new F115 will reach dealers sometime in the second quarter of 2014, with. you will have to take the side panel off, should be 3 screws. You can test that theory without taking the fuel pump off your motor and without returning to shore. For the running rough issue: I would look at the high pressure fuel filter and change it (should be a 1-2 year maintenance item). Thinking maybe I was just an imbecile I walked it across a cross walk into a gas station and put in some more fuel (91 premium) based on my math the bike has a 3. Consult your Yamaha dealer or boat manufacturer for fur- ther information on determining the proper mounting height. 5 hrs on it now and it has not improved yet. New Models Old Salt Marine - Lakeland Lakeland, FL (863) 802-0543. Download a 40HP Yamaha, Suzuki, Evinrude, Mariner, Johnson, Mercury outboard repair manual in seconds. 50 GPH | Yamaha 50 hp 4. with Yamaha Talon™ propellers. An engine that is idling too high may be caused by a faulty idle air control motor valve that has completely failed or that has simply become weak and is not functioning correctly. 1st, disconnect the throttle cable to see if you get the desired result(if trying to lower idle rpm. However once he comes off plane and goes to idle the engine runs rough and acts as though it's not running on all cylinders. It also runs great while under way. It even allows for sub-idle trolling. Hi all, I pulled the Idle speed control today and made sure the filter on it was clean. 3 GPH | Yamaha 200 hp VMAX / HPDI 19. Cuddy cabin with flybridge 2nd helmstation. An outboard marine engine repair manual is a book of instructions, or handbook, for learning how to maintain, service and overhaul the 25 HP outboard motor to factory specifications. Check for oil leaking from the crank seals, like behind the clutch. com is an online retailer of Yamaha Outboard Parts and Yamaha Marine Parts. It will not hold idle unless I keep the choke at half set. One other thing to check is the thermostat, if it is stuck it will never get up to operating temp and will never idle good. Over the winter I had my Yamaha 4hp fourstroke (F4MSHD-2005) serviced and then I just ran it for the first time 4 weeks ago. Motor will not. click here to learn more Softcover – 488 pages – Yamaha YZ125 YZ250 WR250 1988 – 1993 Clymer Owners Service Repair Manual Covers the following Models: Yamaha YZ125 1988-1993 Yamaha YZ250 1988-1993 Yamaha YZ250WR 1989-1990 Yamaha WR250Z 1991-1993Contents: QUICK REFERENCE DATA GENERAL INFORMATIONManual organization / Notes cautions and warnings / Safety first / Service hints / Washing the. F115 Outboard Motor pdf manual download. I believe the rough idle to be design flaw that cannot be overcome by the best. A perfect companion to Yamaha's new F115B, SDS™ brings a new level of quiet and comfort to a much broader segment of the market, fitting Yamaha outboards from the F40 up to the F115. If you want to talk anything XJR (and more), this is the place to do it! the rough idle is better but there. This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. 9 hp Mariner outboard motor; reverse idle screw adjustment; rich and lean idle Mariner 2hp outboard; rough idle vacuum leak 30 hp Mariner outboard; setting idle 1995 Mariner 90 hp; setting idle speed on 60 horse Mariner motor; should the idle mixture screws be. It even allows for sub-idle trolling. Your Yamaha F115-LF115C Outboard Workshop Service Repair Manual Pdf correspond with the number of pages printed on it in this manual, very easy to use. Hey all, I'm new to the forum. I recently removed the db-killers from my Leo's and noticed that it idles very rough when its warmed up. however if you unplug any other sensor on that motor it will lock base timing and idle at about 1100 RPM,top speed may or may not be available depending on the sensor. This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. INSTANTLY DOWNLOAD outboard repair manuals straight to your computer in seconds. Also seems to idle better if it - Answered by a verified Marine Mechanic. It still sounds like a 2-cylinder. Before that with 2 and 3hp direct drives never a hiccup The joy of recreational boating. ZMU08083 1. I have twin 115 Yamaha four strokes. The completely surprising Yamaha Midrange 115, 90 and 75 hp four strokes. Starts and idles just fine, runs in high rpm's just fine, but when between 800 - 1600 the motor stumbles and looses rpm. A downloadable repair manual is a digitally delivered book of instructions that provides step-by-step maintenance, troubleshooting and repair procedures. No clogged filters. drained the float bowl and no crud and im runnin. A problem with fuel delivery, spark plug operation or metering of the air-fuel charge can cause problems at idle that may not be obvious at higher rpm ranges. This gives them exceptional volumetric efficiency and lighter weights. I disconnected each splug plug wire while it's running and the bottom cylinder doesn't make much difference, the middle cylinder some and the top cylinder will cause the engine to die. The completely surprising Yamaha Midrange 115, 90 and 75 hp four strokes. Yamaha CV30: 14 customer reviews on Australia's largest opinion site ProductReview. It even allows for sub-idle trolling. This will adjust your air/fuel mixture. ckcarr is right, just ride off and it should be warm enough to idle by the time you go a few blocks. 1973 Yamaha DT250 Rough idle and wanting to die after getting warm. When it idles both engines idle rough. I believe the rough idle to be design flaw that cannot be overcome by the best. As long as the RPMs are up alittle it's fine. Re: Yamaha f115 4 stroke rough idle and stall Ok after cleaning the iac valve, testing the tstat, replacing the plugs, and installing new fuel lines and primer bulb. 9 Yamaha had a multiple trip to the mechanic's until we found the problem. Variable Trolling: The F115, F90 and F75 feature Yamaha's Variable Trolling RPM Switch (VTS®). after it gets going its fine mid throttle to wide open it also backfires once in a while when u let off throttle then get back on it. Offering discount prices on OEM parts for over 50 years. This allows for precision adjustment of trolling speeds in 50-RPM increments, from 650 to 900 RPM for the 115 hp, and 550 to 1000 RPM for the 90 and 75 hp. Yamaha 115 2 stroke rough idle seems to work ok on first startup. Yamaha Outboard engine stalls 4. Yamaha f115 4 stroke rough idle and stall Page 1 forums. Hi all, I pulled the Idle speed control today and made sure the filter on it was clean.