now porting, already suspicious for putting extra two boost ports (pegs on KTM pistons are a bit closer than on original), and my biggest worry..will be able to enlarge cylinderheads volume enough to have std compression.

at first look, I don't think the sleeve is thick enough to grind it down that much at only 2 local places. I wouldn't risk it.yatasaki wrote:kips will be in, have to decide to grind barrel edge or valve itself...
Have you read Stan Stephens book? He said a 350 KR1 would have been a fantastic bike...a great couple of chapters on Stans KR1/S racing exploits in the book..well worth a read.500bernie wrote:I don't know about you guys, but the main reason I didn't buy a Kr1 or a Kr1s when they came out, was I was waiting for the 350 and the 500.
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