2013 kx450f

How many hours did you have on your bike when you first put new shims in?

And what sort if riding were you doing

How many hours did you have on your bike when you first put new shims in?

And what sort if riding were you doing

I have about 30 hours on mine and no adjustment needed. I had over 80 hours on my 09 KX and never needed an adjustment. Keep fresh oil with a fresh filter and you'll be straight.

Never adjusted any of my 450. 67,7 hours on my 13 right now.

That's what I wanted ho hear, 18 hours on mine I must check valves soon, cheers

2011 with 50 hours and high comp piston race every weekend, just shimmed barely out of spec.

42 hrs, no adjustment, slow rider.

Double post...

Edited by -Anders-

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