wtb 03/04 636 cylinder heads

[starboykevin]

Quote:

Originally Posted by Greg M already replied to your pm kev I just read your post. Now i'm confused as fuck. I use to be a real asshole with the rev limiter, use to think the 636 was a 900rr. I blew like 5 motors up, so I have these 2 blocks that are good, I have one head that is cracked but It came off one of the blocks. I found another head in my pile of shit but it is stamped k-2. ok listen to this. Both of the blocks are 636 blocks. When I bolt the original k-1 head on(with no cams in wich allows all the valves to be closed) the crankshaft spins freely by hand. When I bolt the k-2 head on (again with no cams in) the motor rotates 180 degrees maybe and locks up in both directions. If I just lay the head on there and use no bolts the crankshaft turns but when it hits the spot where it gets stuck it lifts the head right off the block.This tells me the pistons are hitting the head somehow. I tried both heads on both blocks... same issue. I examined both the k-1 and k-2 heads they look identical. Maybe my k-2 head is just warped to shit and I cant tell by looking at it. I need to put a straigh edge on it an check with a feeler gauge. Ive been a mechanic for 10 years and this shit is kicking my ass.

Not sure but i talked to two different kawasaki shops they said there is no difference also the head i have is still bolted to the motor so i know it works. I blew 2nd gear out of this bike so top end is all good.