Slide the lower bushing back down into the upper fork tube.
Intakes were both tight.004 and exhausts were both.011.
Check the clearance between the lock nut and the center bolt.
Until then, I'll just look at the valve surface and angle of the mating surface to see if any wear is apparent.
I adjusted the jetting for winter riding and set the carb aside.Even though I took it easy and didn't ride any high-elevation technical trails, I did manage to give it a good shakedown.I checked the squirter on the carb and it was fine.The thermostat takes a 22mm wrench.Replace the upper fork bushing but inspecting its outside surface.Remove the fork center bolt.
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The kit increases displacement to 269cc, although Thumper calls it their 270 kit.
Other parts are on the way.
Hand tighten then torque the fork center bolt to the axle holder and torque it down to 51 Lbf-ft.
I've done 280 kits on XRs and seen similar mid-range performance improvements over stock, so I'm betting the 270 kit was the biggest factor.But it still has that crfx peak power!Flip the fork over and pour the fluid into the fork.I only had to extend the line from the thermostat, which is short for the CRF450X.If you want a higher compression ratio, use the '04 X head gasket.A brief inspection showed no dirt anywhere in the carb.Remove the air bleed screw on the fork cap.Clean and check your lower fork leg for any problems.So far new fluid in forks has always been noticeable.