Looking to go big bore on an '87 Mojave, anyone had this done? How big did you go, who did you consult first? Lookig into the 300-350 cc range, but want reliabiltity, without a stroker kit. Please advise.

 

Call Four Stroke Tech (814-842-6159 In Penn.) They have a 350cc kit and a couple other options. I had them do my head porting ($200) and black box mod ($80) along with Supertrapp IDS, 11.5:1 Wiseco piston, and was very impressed.