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1986 Yamaha FZ600
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Discussion Starter · #1 ·
Hello All,
I replaced some valve shims on my '86 FZ600 and got a replacement head while I was at it. I installed the buckets, shims, camshafts, caps and chain per spec. Or so I believe.
Once I tighten down the caps I can't turn the crank, at all. It's like the pistons are hitting the valves.
It was on TDC compression the whole time. Dimples on the camshaft match with the #2 caps marks...
I removed the head and looked at the thing. No scratches or signs of abrasion.
What is going on?
Help....Please. Thanks,
Shawn in Bellevue Wa
 
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