Kawasaki KLR 650 Forum - Reply to Topic
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

Thread: Dumb question of the day regarding shims Reply to Thread
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  Topic Review (Newest First)
04-07-2017 10:58 PM
Ghost Rider That is a good point about not trusting what it says on the shim. I never buy new shims I just put them on the surface grinder and take them down to where they need to be. I do have the human decency however to grind off the side that has the numbers on it so any potential future owner does not get confused.

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02-02-2017 05:24 AM
drtrider O/K got to work Tuesday got the mic out and checked the shim it is a 275 I had a few people look at it and all said looks like 278 guess it was a flaw in the stamping. Thanks for everyone helping.
01-31-2017 01:06 PM
GoMotor Since you got it at 2,000 miles, it is not like to have a non OEM shim in it. So, the only choices for the third digit are 0 and 5. Looking at some of my take outs, some of the blurry 5s could mistaken for an 8.

I had one with a number stamp to blurry to read. The cheap caliper at the auto parts store didn't help at all. I bought a good micrometer and pegged the size. Then I marked it with a vibrating engraver for future reference.

Make sure you install the shims with the numbers down so the cams don't rub them off.
01-30-2017 01:49 PM
pdwestman I have found OEM shims can vary a little bit from #. Say + or - .0005 inch, so not much. But like klr4evr, if in doubt break-out the mic. or dial caliper. And confirm the clearance before re-installing the cover.

It could potentially be possible for say a BMW shim to be numbered 278. Would actually represent #2.775mm. Sort of like our Keihin carb jets. 140, 142, 145, 148.

Some of the tiny KX and ZX shims are available in 1/2 sizes. So I'll suggest it could be possible.
01-30-2017 12:10 PM
justjeff That would be extremely unlikely but it isn't a big deal anyway. I always recheck my clearance after installing a shim so any irregular shim thickness would be caught at that time if it ever happened.
Regard....just jeff
01-30-2017 05:20 AM
drtrider Thanks KLR4evr why didn't I think of that. Good advice that is what I will do when I get to work to use the tools. Have you seen many that are out of spec from the markings?
01-29-2017 07:45 PM
klr4evr It's probably a 275 but I don't pay a whole lot of attention to the numbers printed on the shims. Better to measure them with a micrometer to be sure what you really have.
01-29-2017 02:27 PM
drtrider
Dumb question of the day regarding shims

O/K I have a 2010 KLR 650 I bought used with 2000 miles on it 4800 now and I am for the first time that I have done this adjusting the valves so I got my shims out and trying to record the numbers that look more like an ink stamp, I was thinking the numbers would be stamped or engraved anyhow I am having trouble reading one of them it looks like 278 but so far everything I have read they only come in increments of five hundredths of a millimeter from the factory. My question is would any of the aftermarket companies make odd shims like this or am I just reading it wrong and it is a 275? I had rather be safe than sorry. Thanks!

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