how much would a top end cost? im pretty sure hes getting a new quad so idk if he will wanna spend to much on it

 

well i had a blaster and it did that so we figured it was the top end so we sent it out to get a new one ( 500 dollers) and it still did the same thing and ended up being the reed valves.

Also did anything happen to cause it do do this like did you slam it into gear alot or anything like that?

 

i say befor you get the new top end (if thats it) just pul out the reeds and make sure they are not cracked or anything. I dont think it will hurt anything to just check...

 

Clean the carb and then replace the needle. One problem that the bike cuold be having is it cuold have the wrong type of needle for his type of riding. It is possible that it is allowing to much fuel into the carb, when being ridden.