Edited Date/Time:
This is going to be a slow build because I'm also saving money for a house, building a car, and a gf that hates that I waste money like it grows on trees lol.
This is where I started with a stock '18 KTM 250sx in October of '17. So far I've rejetted it and worked on getting used to riding again after a 10 year break. I installed the ride engineering CRF steering damper bracket and damper they had and it helped a great deal in turns and dropped one tooth on the rear sprocket.
With this round of changed I installed the Neken air/spring clamps so I had to build a bung and weld it to the steering neck. (I'll get a picture later) for the steering damper. I also swapped in the TLD McQueen kit. I changed some suspension settings and Hopefully tomorrow I'll get to ride it and see how it feels.
Next up on the list is depending on how it handles this weekend. The bike has been handling well, but some pictures the gf took for me confirmed that the rear suspension is packing in braking bumps and the front rides to high in the stroke in turns. If my adjustments help then I'm aiming for exhaust. If it still isn't better then I'll be headed for a revalve front and rear. Still undecided on who to go with though, local race tech guy, FC, MXT, or a different local guy with national proven results.
Currant build:
jetting
MJ 490
PJ 37.5
Needle 42-75
Clip 4th position or 3rd depending on temp.
Needle jet s-4
AS 1.5
U4.4 mixed 60:1 with amsoil donionator
Suspension settings:
Front Rear
rebound 19 rebound 14
compression 23 low speed 8
air pressure 144psi high speed 1.25
sag 110mm
CRF 20mm Showa steering damper
Neken air/spring triple clamps
49t rear sprocket
Power valve turned in 1.75 turns from all the way out. Stock yellow spring.
2018 KTM 250sx
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