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Reving When Running Our Of Gas

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My 2002 sy 250 revs to the moon on its own when it's almost out of gas. Is it possible to stop this?

Put more fuel in

Although I have run out of fuel in the past that has to be the easiest, cheapest and most logical fix anyone could have posted up.

Put more fuel in

I can't beleive you beat me to it, one of those times where someone types exactly what I was thinking.

On a serious note though engines rev up when they are running out of fuel because they are running far to lean, letting them do this regularly, or in your case reving the knackers off it may nip it up if not seize it solid. As above, put fuel in it when needed, kill the motor if it is running out.

  • Author

ok sweet i didnt think to put more gas in !!!! I know why it happens it just seems to be on the extreame side on this bike,

ok sweet i didnt think to put more gas in !!!! I know why it happens it just seems to be on the extreame side on this bike,

Post a video, it's a fair question, might have an air leak.

My SY250 never did this when running out which it often did whilst practicing. I have had mx and enduro bikes do it.

Funny question though. :hyper:

  • 2 weeks later...
  • Author

Well it sure ain't to funny half way up a committing rock section when it hits full rpm you got to toss it and won't shut down even when hitting the kill switch. I think I might have an air leak,

It also could be the `on` position runs out early. Ride with it on reserve all the time. Down side is you would be out of fuel. I did this on the Beta Techno`s because the CDI could break the plastic fuel tap in the on position on a hard drop off. I always ran it on reserve.

  • 1 month later...

Bit of a late reply but I've only just joined, my 2007 sy250 does exactly the same when it's getting low on fuel.

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