Thread: '92 rebuild
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Old September 5th, 2021, 12:58 PM   #13
DannoXYZ
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Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

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MOTY - 2018, MOTM - Nov '17
Yeah, those tight valves on #1 probably contributed to your low compression numbers. I usually don't follow manual's cam-orientation when measuring valves. I just turn cam to aim lobe away from rocker, that way I know for sure I'm measuring maximum clearance.

I use one of these tools to adjust clearance. Cinch it down 1/2-way with lever. Then do final round at very end with torque-wrench.



Engine looks clean, no sludge or brown-coating from using dino oil, it may have been well cared for. Not sure what that red is, have you drained oil to look at it?
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