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what is wrong with my mini dirt bike?

when i turn the throtel right back it just concs out. i am letting it heat up for about 2 mins then i will go for a slow we spin on it. i am wanting to take it out to the track to race but it will just conc out. it is so so anoying. what should i do?

john
November 2008
Could also be an inlet weak, so when your pull back the throttle it suck's in more air. This will give a weak mixture; so it will rev ok but will bog down when loaded)

Check all your fixings where the carb mounts.

service@minihaha.co.uk
December 2008
Hi John,
3 things come to mind, Sparkplug gap too close, mixture incorrect, plugged exhaust. The sparkplug could be gapped too close or carbon fouled, the mixture could be off (usually too much fuel) and if the exhaust baffles are carboned up it will be like trying to run while constipated.

joseppie
November 2008
blocked jet in carb

glen
November 2008
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