just getting ready to finish my z400 to 440 and i would like tono if any bodie has an idea were to start for the main jet i have a pipe rev box and an knn

do i have to change the cams?

 

Where you bought your 440 kit should be able to tell you that info.

 

That all depends whats already on the bike. Aftermarket exhaust , airbox , etc. If your running the stock carb , you might be better off getting a FCR 39mm to really take advantage of the 440 kit. IMO

 

my z has got um airbox, pipe,uni airfilter,440 kit and all that. Id say you dont need an aftermarket carb because i dont. I would het cams though. I did.

 

39mm carb off a yfz450. wouldent even mess with the stocker. no you dont need it but you didnt need the 440 kit eather. but you wanted performance. you will get more performance out of a 39mm carb than the 440 kit. but when you put both together WOW!!!!!