Hi , Can anybody tell me the setup for a keihin carb on a 07 250 gas gas thanks

My setup is as per GG UK.

45/122 Jet Sizes.

JJH Needle, Middle clip.

3.5 Slide.

1 1/2 turns on mixture screw.

Are you using the spacer of the GG Raga reed block assembly?

DJ.

My preference with the Keihin is to use a GJH needle, offers much better low end control than the JJH, but then you need to use a 128 main jet. Try Allens in the UK for these bits.

With the GG250, the standard DellOrto works very well and fitting a Keihin did not seem to give any vast improvement, unlike the 300 model, where the Keihin noticeably improved carburation.

Bye, PeterB.