2004-2006 Honda FourTrax Rancher TRX350TE/TM/FE/FM Service Manual, Page 70Get this manual
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MAINTENA NCE
VALVE CLEARANCEIN EX: O.1 0.02 mm (0.006 0.001in)
Adjust by loosening the lock nut and turning the adjusting screw unti there is slight drag on the feeler gaugeHol the