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darmino

YZ timed Jetting advise

3 posts in this topic

Ok heres what I have, 2002 WR426 airbox lid off, YZ timed, gray wire removed, stock exhaust with insert removed, sometimes I run a baja design insert (only if I have to, about 70% of the time)Uni air filter. Fuel screw 2.5 out(The idle will not drop even if I back the fuel screw all the way out), stock jetting

My bike runs fine, but with the stock jetting am I missing out on some performance? I typically ride at between 1000-3000 FT, any advise?

:) Thanks in advance.

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2002 WR426 airbox lid off, YZ timed, gray wire removed, stock exhaust with insert removed.

Congratulations. You now own a WR with a YZ motor. Switch to stock YZ jetting, this is a great starting point, or just leapfrog directly to the jetting of another member w/ similar altitude and climate.

But the stock YZ jetting will be such a big improvement over where you are now I feel compelled to mention that.

In a few minutes someone will be recommending an ELN needle...

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In a few minutes someone will be recommending an ELN needle...

Or maybe not.

I guess everybody bought a 450 and is out torquing their flywheel nuts. :)

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