My 2 stroke bike revs fine. But when I open the throttle fully and keep it revved. It's cut out the revs back in then cuts out.?

And when I'm riding and I'm driving when I reach high RPMs it jerks forward then turns off then turns on. Cuts in and out in and out. Not sure what the problem. 

It suddenly started to happen.

Update:

ok So I took the carb apart and the main jet had fallen out and was just in the bowl. put it back and if fixed the problem. Thanks for the help but

3 Answers

Relevance
  • 3 months ago

    Not a rev limiter. It happens when I'm in the middle of the powerband. 2 strokes are made to rev high so it isn't destroying the engine. Most 2 strokes don't have a rev limiter

  • 3 months ago

    probably fitted with a rev limiter ..to stop clowns like you destroying the engine ...the problem is you ..have you got a rev counter fitted?

  • ?
    Lv 7
    3 months ago

    Adjust the hi speed jet, try to make it more rich. If you have a spark arresting exhaust, clean the fine screen - clogged exhaust cause high rpm failures too. Finally and as with all 2-strokes - replace the spark plug.

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