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Cindy Posted on Oct 12, 2019
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Yamaha 5500P industrial series generator. It started back firing and will almost die then power back up. Was running great then just one day started this. At first I thought condinsation as it seemed to struggle with gas then the major back firing. Any ideas please.

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CJ Rock

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  • Yamaha Master 4,429 Answers
  • Posted on Oct 13, 2019
CJ Rock
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Start by replacing fuel. Completely drain the tank and carburetor fuel bowl. Do not use what fuel you may have, get 2 gallons of fresh fuel from gas station. If problem clears then likely water in fuel.

If still backfires with fresh fuel then likely an ignition issue. Failing ignition module or possibly a sheared flywheel key. Try reducing spark plug gap to .025" .

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Anonymous

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  • Posted on Oct 23, 2008

SOURCE: 40 CC WILD THING POULAN

maybe the thermal sensor in the engine is overheated..it is inthere to keep the engine from frying.

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tombones

  • 3567 Answers
  • Posted on Apr 08, 2009

SOURCE: engine dies, starts right back up then dies, now won't start

Springtime start ups after sitting up for awhile can be a problem. You have nothing to loose, spray some starting fluid into the air cleaner. That may be just what is needed for an easier spring start.

Anonymous

  • 1 Answer
  • Posted on May 21, 2009

SOURCE: yamaha warrior won't start

a yamaha warrior isnt a 2 stroke. they make a street bike nad a four stroke quad. Check your carburator. check your spark plug and check your stator. it may be very minor considering it was running fine then just went out. no noise or anything. you would have heard something if you broke something internal.

jdthefixer

  • 747 Answers
  • Posted on Jun 15, 2009

SOURCE: generator will start and run easy, then just die.

Check for loose wiring connections, especially at the run or kill switch. Generators vibrate a lot so it could be as simple as something loose.

Silverdragon

electronic & computer repair& servicre

  • 12061 Answers
  • Posted on Mar 22, 2010

SOURCE: Honda ems 4000 generator starts and runs great, but no power

At the controller, you need to see if it is actually sending electricity out of the Generator/Alternator, have a look where the leads from the power making unit mates, (Think of it as a motor in reverse) onto the board. There should be an AC Voltage there, then, work back, or out from there, trace the Voltage until it stops, thats the problem... Check the Breaker isn't tripped or faulty too.

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