Need some 2stroke carb help

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12/1/2017 6:30 PM
Edited Date/Time: 12/1/2017 6:30 PM

I have an rm250 that won't rev out on the top end. I know it's not the jets themselves that are wrong. I've changed the stator and CDI and still no dice.
Today I ran the bike with the airbox off and noticed it shooting fuel out the back of the carb towards the airbox. Any ideas on what would cause that to happen?

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12/1/2017 6:57 PM

Sounds like you may have a carb problem. Remove, clean and reset the float height. Also check your reeds.

Paw Paw

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12/1/2017 7:22 PM
Edited Date/Time: 12/1/2017 7:23 PM

Try what Paw paw said and if that dont work check the powervalve. Check your silencer packing too.

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12/1/2017 8:33 PM

dirtmike86 wrote:

Try what Paw paw said and if that dont work check the powervalve. Check your silencer packing too.

X2

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12/1/2017 9:06 PM

Transmission side crank seal will cause this too

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Tomac and/or Anderson for 2020.....

12/1/2017 10:24 PM

Did this just all of a sudden happen?.. or did you have the carb off prior to the rev problem? I left a bag in my reed cage before and had the same symptoms.

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12/2/2017 12:42 AM

Check the tank vent hose

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12/2/2017 12:42 AM

On the gas cap

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12/13/2017 12:04 PM

It's been awhile but I got the problem figured out. The vforce reed block fell apart and put everything out of wack.
Thanks for all the help guys!

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