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WTF? Isn't your bike equiped with hydraulic tappets?

Ditton on the Air Cooled VW motors, cylinder #3 has a tight exhaust valve most of the time, because on the pre-doghouse cooler motors, the oil cooler lays over No.3 and that cylinder runs hotter 'n the other three. Also, valve-seat recession is a problem on the VW boxer motor if it has rebuilt heads, always ran mine a 6 thousands. A little loose, but I had an Engle 120 with .50 lift and over 300 degrees duraiton.
 
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