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Old 10-25-2012, 01:14 PM   #6116
RoninMoto's Avatar
Joined: May 2010
Location: In the mountains?
Oddometer: 1,692
Originally Posted by Mini Trail View Post
If it isn't obvious I am new to the shims. I had to replace both rockers. The intake (new item number) is so tight I had to compress the valves a touch to push the rod through.

They seem to have some relief machined into the bottom where they go over the valve stem. I thought it might be measured from inside that relief (where my calipers or micrometer won't fit) but it sounds like they are measured at the flats.

How many brands use the same shims? I'll buy that hotcams set but if there was an S&S kit for Harleys for half the price well...
-1 for not needing the kit. He is starting out new. He will have to try shims until one works.

My opinion: Get a kit. Put a small shim in and see how tight it is. Try till you get within speck.
When you are checking a motor during its periodic mantainance, you have the advantage of KNOWING which shim to use. There really is no way to measure short of putting a shim in and using a feeler gauge. So unless you live next door to a shop or they will give you a hand full of shims to try, I suggest getting the kit. Especially if you live in the boonies like many of us do and don't have a close local shop.
Noah 08 KTM 690 ADV. 125,000 km. 42 countries. 5 continents and counting.
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