Yet another Jetting question

[Titanium Fink]

I was wondering what are some of the indications of the bike running too lean? I have stock jetting on an 04 WR450 and it is unplugged with a Yoshimura TRC pipe. What should the jetting be?

[simon@vic]

buy a JD jet kit. it is fool proof.

[Bamster]

I was wondering what are some of the indications of the bike running too lean?

You will get a lot of popping on deceleration. Check the spark plug color.

I was lucky with mine, the jetting was all sorted out before I bought it.