Forum Discussion

Dame's avatar
Dame
Explorer
May 22, 2016

Onan 6.5 generator surges , backfires, stalls

6.5NHEFA11579P Onan generator on our 2000 Damon Intruder , ford chassis.
Generator surges, backfires, stalls .
Replaced fuel filter , spark plugs , air filter , plug wires . Still the same
Please help . Thanks
Also when I hit the start button from dash or on generator there is a delay, like its laboring to turn over.

3 Replies

  • gbopp's avatar
    gbopp
    Explorer
    May 23, 2016
    ORbiker wrote:

    Is it propane or gas?

    If gas and it will run. Try running some carburetor cleaner. Shoot some straight down the carb.


    I was thinking Seafoam may do the job. But, I'm curious if it had been running normal and the problems just started.
    Or, did the OP just buy the unit and has not used the generator.
    Carb cleaner and/or Seafoam would be a good place to start.
  • ORbiker's avatar
    ORbiker
    Explorer
    May 23, 2016
    Dame wrote:
    6.5NHEFA11579P Onan generator on our 2000 Damon Intruder , ford chassis.
    Generator surges, backfires, stalls .
    Replaced fuel filter , spark plugs , air filter , plug wires . Still the same
    Please help . Thanks
    Also when I hit the start button from dash or on generator there is a delay, like its laboring to turn over.


    Is it propane or gas?

    If gas and it will run. Try running some carburetor cleaner. Shoot some straight down the carb.
  • gbopp's avatar
    gbopp
    Explorer
    May 23, 2016
    Did the problems just start?
    Have you Been exercising the generator on a regular basis?

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