I'm a little bit dramatic. Loosen the idle speed screw's lock nut with a 3/8-inch open-end wrench. Systems, Marine Plumbing Hardware, Boat Seats by In the future, drain the carb bowl AND run it dry if you're not going to run it for several weeks. ACCOUNT, Find Mark, Yes, I don't get it. 2007 Yamaha outboard 4 stroke will not idle and engine dies. I always like to start with the most expensive stuff first and work backwards. Any four strokes for Sale? I have a 2001 HPDI that won't idle and "bogs down" when given gas in neutral. This page was generated at 1 minute ago. Any thoughts on the other two cylinders not lighting at idle? Protection, Dock Storage & Locks, Boat Deck At idle, you don't even know it is running. Well, I'm back at it. Shop When in neutral I am only lighting up cylinders #1 and #4 according to my YDS and not the four I am supposed to have (not sure which four they should be). Near the end of last season while running WOT it suddenly lost it's top end and ran about 800 less RPM's. Downs, Couplers, Mounts, If your outboard is running rough but you’ve checked your fuel vent and it’s clear, disconnect the fuel line and give the outboard end of the connector a good examination. Parts, Rule 1500 GPH Automatic Starters, Marine Solar Power Pumps, Marine Pump Replacement Dock, Cabin and Covers, Boat Shrink Wrap Gnat's farts will clog them. Re: Yamaha 115 HP idle problem The thermostat is on top of the motor out in the open. Thanks to all for your suggestions. If I try to throttle up in neutral it floods out and I assume it's because the other two that are supposed to be on at idle are not getting fire? Fenders, Boat Trailer Vinyl, Floating Boat Deals, Paint & Maintenance This feature permits the engine to be started only when it is in neutral. Deals, Boat Seats for Sale, Buy A Remove the screws and lift off the housing. why wouldnt you start with the most COMMON stuff like fuel supply ? 2 times when I pulled it started up revved for about a sec then died. Accessories, PWC Parts & Wells, Toilet & Waste & Sonar, Trolling Plumbing, Anchor A family day on the lake enjoying the fresh air and sunshine is a perfect way to get out of the house without worrying about social distancing. Zincs, Generator Any suggestions on where to look next? Nothing is coming out, that is why she starts right up when I spray fuel in the carb. Boat Repair, Boat Paint & Battery Charger, Marine Audio & Savers, Boat Trailer Guides & Surges with a burst of power intermitantly almost like it's ready to take off when it does get on plane. Parts, Inflatable Probably also looking for an excuse to buy a new motor, but not in the budget. We can tell you one thing for sure, though: after spending an afternoon zipping around with a Yamaha F25 on the transom, we wouldn’t hesitate to buy one for our own boats. Hi Guys, I have a 25 HP Mariner Outboard seems to miss slightly at idle and when throttling down. Boat, Sell A I confirmed this by removing the cover and pumping the bulb. I wear out a starter in the 9.9 hp motor every 5 months. A misfire will cause the engine to momentarily stumble or lose rpms and then regain its normal engine speed. It will also stay running and ***** with no problem when in gear. Accessories, Marine Electrical Category, View Thanks! Marine Battery Chargers, Shop Cushions, Lexington Hardware, Boat Cabin Deals, Trailering If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. Guide, Boat & Dock, Anchor Chains & The engine stalls in neutral, at idle, only. Fuel filter looks good and is filled with fuel. even though they looked OK. Holders, Cabin Accessories & If electrical, anyone have any suggestions where to start? Transom Idle is consistently not working. Covers, Boat Wiring & Parts, Sacrificial Anodes & Parts, Wash Down When your outboard starts right up, keeps running with throttle applied in neutral, but shuts down the moment you come back to idle speed in neutral, the issue is likely to be a sticky or broken AIS (automatic idle speed) valve. Still, it won't start without choke and won't idle but only runs at very-rattling high speeds. Professionals. #2 and #5 supposed to drop out at idle I heard? Tackle Boxes, Fishing Bait & Galley, Covers and Protection, Ladders, Steps, & Boats, Propeller Parts & The Right Fit, Shop By that's just like going to the casino. High Back Reclining Helm Seat, Cabin and Plumbing, Fresh Water Boat Software, Digital I'll keep plugging away. ... it won't stay running with throtle only. Mechanic's Assistant: Thanks. I replaced the diaphragms on the fuel pumps when I tested the injects and replace the inline filter over the vapor tank as well. Visit our boats.com How-To library, and you’ll notice that a lot of the topics relate to outboard engines.This shouldn’t be a surprise, since outboards have been growing in popularity for many years now. I start it and quickly shift into gear and give it throttle. Thread starter Gerry; Start date 13 Sep ... replacing the two most delicate gaskets (£40 - ouch!) JavaScript is disabled. Trolling Motors, Shop Yamaha Outboard 25HP Left Idle 1 Year, Won't Turn Over Motor: 2000 Yamaha F25MLHY Outboard Carb: Keihin BCM 65w10 nf15 Of course I know I shouldn't have left the motor idle for over a year without running it, but I did, and now I'm here. Parts, Boat Tubing & Turn the idle speed screw with a standard slotted screwdriver until the tachometer indicates the idle speed is between 800 and 900 RPM. Oars, Wakeboard, Wakesurf & I'm pretty sure I've determined it's not a fuel issue as all the filters have been changed, fuel pressures check out, run fresh source of supply, injectors check out, etc. Completely reinvented and a 2017 IBEX Award Winner, the all-new Yamaha F25 is the lightest 25-horsepower outboard on the water—two stroke or four stroke. Accessories, Boat Lift Canopy Copyright © 2000 - 2021, Outdoor Network LLC. I'll check all of the connections on the motor next and make sure nothings loose. CREATE So we decided to ask Chris Breeden, the service manager at Norfolk Marine and a Yamaha Master Tech, which outboard problem he saw with the most regularity. EMU01209 START-IN-GEAR PROTECTION Yamaha outboard motors or Yamaha approved remote control units equipped with start-in-gear protection device(s). You must log in or register to reply here. Accessories, Big Jon Biminis, Paint and
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