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Compression passes when measured cold., It's 150 across the board, except #3 was 10 PSI lower than the others until I retightened the head nuts. Details are in the earlier posts of this thread.
One thing that is bothering me, is that I replaced the head gasket on an XS750 twice, using the same torque wrench, and the same techniques, and everything was fine. I did use Yamaha head gaskets.
Right now my plan is to remove the head, inspect the head gasket. Replace it with an NOS Yamaha gasket. Have a second torque wrench on hand. Consensus so far is to oil the stud threads only, and not the nut flange.
-Mike
_________
'79 XS1100SF 20k miles
'80 XS1100SG 44k miles
'81 XS1100H Venturer 35k miles
'79 XS750SF 17k miles
'85 Honda V65 Magna ~7k miles
'84 Honda V65 Magna 48k miles (parts bike)
'86 Yamaha VMAX 9k miles
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