1990 cbr 600. where to start. got the motor on a go kart. exhaust is conciderably shorter than stock and im not running an airbox. ive tried shimming the needles to make it run a little richer but to no avail. so ive been thinking about it and the best route it can think of (rather than throw money at a jet kit for carbs that arent gonna work properly anyway) is get diffrent carbs. ive got a 72 yamaha rd350 2stroke. ive found sets of carbs and jet kits for them pretty darn cheap and they flow for 25 extra cc's a cylinder so... im wondering, if the 600 has a redline of 12000 and the 350 has a redline of 8500. will the 600 drop off on the top end? if it works it should help out my low end power a good bit and have nice crisp throttle response through the rpm range.

 

no one knows if its gonna make a diffrence?

 

i would stick with the stock carbs and re-jet them. to many variables when you switch carbs. just my .02

 

I Would Think Sticking With Your Stock Carbs Would Be The Best Route And Jetting Them Like Above Said There's Just To Many Variables Switching Carbs From Something Totally Different.

 

ok thanks

 

if anyone has anything usefull to say on the matter i would appriciate it.