YZF-LIAM Posted February 12, 2012 Share Posted February 12, 2012 Hi, i am new to the Yamaha forum this is my first post. I am the proud owner of a Thunderace. At lower revs in 1st and 2nd gear it stutters and misses?? its got a full carbon can comp. exhaust will this need setting up as i dont know if it as been done or not? Cheers Link to comment Share on other sites More sharing options...
Morpheuz Posted February 13, 2012 Share Posted February 13, 2012 If the bike has an aftermarket exhaust, it may now be running lean (too little petrol), at low revs especially it can prevent it from accelerating smoothly. Link to comment Share on other sites More sharing options...
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