I was going over the re-install in the manual..
Step 1-Install the head bolts in the cross patten to 22ft lbs
Step 2- Undo all head bolts,remove, re lube and torque to 14 ft lbs stop,make marks then turn bolt another 180 degrees from marks.
Does anyone else follow this procedure??
I must say it took everything I had to loosen the head bolts and my bike is new and spotless with no grime or rust/oxy on the bolts.No way did that feel like 14ft lbs plus a 180 turn extra.
Next the rear head bolt on the outer "dry" left side of the motor won't even lift out of the head till you have all three others out so you can slightly twist the head to clear the frame-it will not just pull vertically out like the others.
There is no way with the engine in the bike I could get the head torqued down THEN re-remove the head bolts and lube the required 2nd time with out taking the head off the cylinder.
All the big bore kit install videos the guy just torques the head down to "spec".
Well...Yamaha "spec" calls for this double procedure..
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Edited by ILOAD2, July 31, 2011 - 01:34 PM.