[UK_CRF250R]

Hi people

little problem with standard (JD) settings on a CRF250R, i wondered if anyone could help it would be greatly appreaciated.

I purchased the JD jetting kit, installed it to my riding conditions (sealevel) and went to my local track.Tt seems to splutter and backfire not rev out clean on the stand. When warm and on the track it seemed ok until a real good handfull of throttle was given then bogged pretty bad!!

The bike has a full HGS exhaust system otherwise standard, Any recommendations ?

Thanks.

Robbie.
UK Rider.

[Asmith]

Robbie,

What year are we talking about?

And what is your exact set up currently?