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1995 Johnson 90hp ocean runner outboard motor no low idle

1995 Johnson 90hp ocean runner idles rough and will stall after a few seconds unless it is put into gear. Gas and oil are ok and fuel filter has been changed and the carbs cleaned as well as spark plugs changed. Still the same problem.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 66 Answers

SOURCE: 1995 Chevy K1500 4.3L V6. Engine has inconsistant idle

Have you changed the fuel pump yet?I had the same exact problem.I replaced my fuel pump with an AUTOZONE PIECE OF JUNK fuel pump.That pump lasted almost 2 days.The second day i had it the truck didnt want to start but it did and it ran like ****,and when i put it in gear it ran as long as I didnt touch that gas pedal.You could go get a fuel pressure test or just replace it,your call.You might want to check your filter too but im sure its the pump.Good luck

Posted on Apr 27, 2009

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  • 187 Answers

SOURCE: outboard motor idles but will not speed up

You really have to blow out the jets to clear any varnish left over from lay up.

Posted on May 13, 2009

emissionwiz
  • 76164 Answers

SOURCE: 98 GMC k2500 7.4L Rouch Idle

TRY THIS BEFORE U SPEND ANYMORE MONEY N PARTS.
Here is the common cause of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

Posted on May 22, 2009

  • 376 Answers

SOURCE: Hi/low idle

Ok. First do one thing. Remove the air cleaner and start the engine. With your finger, push against the side of the governor spring to raise the rpm's some and hold it there. Is the 'hunting' still there? The tab the spring is attached to adjusts the governor speed and being located where it is, is prone to being bumped while mowing, pushed in and lowering the engine speed. If it still surges, this is what I would do... Remove the fuel tank and carb assy.. Two bolts, one behind the gas cap and one on the end of the tank. Pull it straight off the intake pipe then unhook it from the throttle link. Now, empty the tank and unscrew the carb from the tank. Clean the carb with a can of carb cleaner. Slip the screen off the pickup and make sure it's clean. Discard the pump diaphragm and gasket. Buy a new pump diaphragm kit, part #795083. Clean the top of the tank where the pickup with the screen fits into. Put it back together. Remember to put the rubber diaphragm against the tank and the gasket on top of it then the carb. Don't forget to attach the breather tube when you're putting it back on the engine. That should fix 'er up. Also, if the rubber ring and plastic retainer ring came off on the intake pipe when you pulled the carb and tank off, snap them back in the end of the carb before sliding it back on the intake. Hope you can make sense of all this. Let me know how it goes. Dwain

Posted on Jun 29, 2009

stevenhurc
  • 450 Answers

SOURCE: 2000 Daewoo Lanos intermittently idles rough

check throttle body and pcv hoses and ports for blockage possible carbon build up and sticky iac valve

Posted on Jul 20, 2009

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1995 Chevy K1500 4.3L V6. Engine has inconsistant idle


Have you changed the fuel pump yet?I had the same exact problem.I replaced my fuel pump with an AUTOZONE PIECE OF JUNK fuel pump.That pump lasted almost 2 days.The second day i had it the truck didnt want to start but it did and it ran like ****,and when i put it in gear it ran as long as I didnt touch that gas pedal.You could go get a fuel pressure test or just replace it,your call.You might want to check your filter too but im sure its the pump.Good luck

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