Need help with my '07' Orion 250cc

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Bass

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ppl anyone that can help me i just recently got my bike back from service and they put a new carby on it, it was running perfect 1st and 2nd time i took it for a ride.

I opted for a new carby because i couldnt fix the problem of it would spit and cough everytime i throttled it and it would ride like a dog box. Now with the new carby it is doing the exact same thing. I changed the surclip on the throttle pun inside the carby to see if that would change anything and again it stated, idled and rode well for the first lap then on the way back it started coughing and back firing again.

Im unsure what could possibly be the problem, maybe timing or my engine is on its way out (lets hope not)

Anyone with any info that may help is appreciated.

Thanks ppl
 
play with your mixture screw sounds like its running rich
 
Timming is not adjustable like a old car, the timming is set by the timming chain, and if it jumped a link the timming would be out always, its not timming, you changed the carby, then its not that
3 things it might be
I am going with spark plug lead
the other 2 things it might be crock cdi or dirt in fuel and tank
 

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