If my plug is black...


If a guys plug were black, no gray areas (but the bike still runs)and this guy just installed a new needle jet should he;

a - go in on the air screw 1/4 turn to help lean it out and install a new plug

b - move the clip position up one and install a new plug

Thanks ya'll!


JJ - 99 WR; WR timed, stock jetting, Scotts stabalizer, Scotts triple clamps, Pro-Tapers, Terry Cable Hot start, MSR Raptor clutch lever, Moose skid plate, Works frame guards, Acerbis Pro Rally guards, Renthal MD-soft grips, Russel speed bleeders, Factory Effect graphics, YZ rear fender

Depends on whether he likes his coffee black or with cream... :)

The pilot screw is MUCH easier. Turn it in and see how it runs.

This hypothetical needle is already 1 1/2 clips more lean than the stock YZ426 is for '01. (EJP#4)


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