CR250 38mm Mikuni TMX

[The_Steve_Man]

I have a BHP oem cylinder with a +4 and it likes the fuel. I ran a CT pipe and ran a 32.5 pilot, S9 nozzle, 6BEY needle and about a 440 pilot. I changed the pipe to an LRD pipe and could really tell exactly where the clip position needed to be, the taper (I went to a 6BEH).
My other motors I ran 32.5, s8, whatever needle was in it, and 390 to 440 main.

[dp250r]

I setup a TMX 38 on my 83 aircooled 250r it has stock porting DG pipe with Coffman silencer It runs well I think I need to bump my pilot jet up one or bump my needle up .It bogs a little till it gets warmed up.I pull a 14/38 gearing with 22 inch rears .I can beat 450s and a 500 Predator with it.