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Originally Posted by mad man I'll clean air filter, Buy new NGK plug check CARBY and then i'll see what happens..The thing is once it is warmed up it goes good but if u jerk the throttle it will die sometimes |
Is it a real Thumpstar?
The chinese copy of a thumpstar i had done this. I had to leave it warm up for 20 minutes, then it was ok. If i yank the throttle back to quickly, my bike will try and rev, but just plop back to the normal rev as it can't get air in fast enough.
The best thing to do is, but a NGK spark plug. They are very cheap.
Take off the air filter and start the bike and see if it works then. (Don't do it where something can be sucked into the engine.
Clean and jet the filter. If it comes to this, im shore one of us can give you a tutorial on how to do this.
I wouldn't advise taking it to a shop as they will charge you ALOT!
Your better of learning how to fix these bikes yourself as the parts are cheaper then the labour at the mechanics.
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