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Discussion Starter · #1 ·
I have a comp cam shim kit that I used on my KFX450R and My KX450F, Will these shims work in my 2015 YFZ450R????
 

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What size are the shims? Not thickness but diameter? I believe they are the same. What's the part number on the shim kit?
 

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Discussion Starter · #3 ·
What size are the shims? Not thickness but diameter? I believe they are the same. What's the part number on the shim kit?
Man there is not a part number on the kit. However, It looks like 400+CC 4 stroke engines use 9.48OD shims. When I pull them out I guess Ill Mic. them to compare. Appreciate the help.
 

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They are most likely the 9.5 shims. Don't go strictly by displacement. My R1 (1000cc) takes the 7.5mm. I believe most of the KTM does as well
 

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Discussion Starter · #5 ·
Im just going to mic them when I check the valve clearance. Appreciate all the input.

is the "cam" mod worth it on a 2015R? Have not seen too much on it.
 
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