Pit bike 110

Hi all, my kid has a 110 pit bike. When I try to turn the engine over, there is back pressure on the intake side if the carb(air filter side), any advise on how to fault find. Bike won' t start.


If it has a lot of backpressure you may want to check on your exhaust valve. Be sure everything is correct my checking your timing and then valve clearance also.

Thanks mate

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