The RM-Z250 valving simulates the mod where you remove shins, and is a bolt in solution. Results worked for me

Yes, it works - takes the harshness out of the forks (they are known for this). Its a much plusher ride, but I am not a guy who takes big hits and hucks monster booters. Vet B rider with moments of good speed

Simplest fix, buy the fork valving from the '14 250 and live happily ever after (comes with valve stack and cap). Bolts in and costs less than a re-valve Shock is good, work on adjusting and you will be happy

This should help: https://youtu.be/6cC_MBsRRZs Right side of the engine, water pump housing should have a drain bolt

Almost too funny, my kids call my ankle area Frankenfoot (stitches and lots of titanium inside) Basically can no longer run, have a funny gate to my walk (i notice it more than others), I am way good at running in a circle...

Lifer in MX and riding in general, but fell out of love with MX once I shattered my tibia and haven't ridden the same speed since. This frustrates me to the point of not wanting to line up anymore simply because I struggle to hang even though I know ... more »

This guy was an Evinrude Speedy Twin man....

Loop charge, cross flows, inverted domes, all different names for the same basic idea...

1988-1989 KX125 OEM piston 13001-1266 used a concave crown, there have been others that use this design

Clear case of detonation, this is pretty common with low octane fuel, or possible lean condition (jetting, air leak) This is your best friend for diagnosing these kind of issues: https://www.eric-gorr.com/files/pdfs/2_stroke_top_end_and_performance.pdf

‘08 to 17 RM-Z450 and ‘10-18 RM-Z250

There was only some small trimming of the backgrounds if I remember, but not much I used '08 and newer RM-Z450 plate and fender, they are all the same up to 2017. The RM-Z250 is the same starting in 2010 Here is a better link: https://www.vitalmx.com/community/DJS721,41536/setup,42029 ... more »

Take a look at my Bike Check, the secret is to use RMZ preprints and match the shape when you cut the plastic https://www.vitalmx.com/community/DJS721,41536/setup,42029 I tried the other methods, and this was the best shape overall

You can use the 2004 and up guards, they bolt on just the same