The clearence should still be checked periodically, it's much more labor intensive to make adjustments. The shims are between the valve stem and the cam followers (buckets) hence the cams will need to be removed to change shims.
MY BIKE WAS WORKING GOOD BUT IT DID NOT REV QUICK AND SOMETIME DIDN'T PULL HARD.
WITH OUT ANYTHING TO COMPARE IT TOO. I ADJUSTED MY OWN VALVES OVER 6HRS OF PLAYING WITH LASH CAP AND CAM TIMING TO GET.007'' ON THE INTAKE AND .011'' ON THE EXHAUST THE BIKE PULLS LIKE MAD AND REV'S QUICKER. A NIGHT AND DAY DIFFERENTS. ONE OF MY VALVES WAS AT LESS AN .003'' THIS IS THE MUST IMPORTANT ADJUSTMENT TO AN ENGINE AS I REBIULD ENGINES AT A HEAVY DUTY DIESEL SHOP. THE IMPORTANT THING IS TO GET SOMEONE THAT WILL SPENT THE TIME DOING THIS JOB, AND NOT JUST SAID GO ENOUGH.
ROAD TEST AFTER AND LOVING IT, JUST PUT A 15/36T COMB. TO GO FOR SPEED
I had my tank off last night at work and decided to check the clearence. I have well over a hundred hours on it and the clearances were at .011 and .006. I never beat on my machine but it was run hard. I would say that unless your comfortable with doing it or your pred is running bad, I would leave them alone.
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