air screw question

Y

yzJoKeR

~SPONSOR~

Sep 12, 2002

102

0

• Nov 26, 2002

• #1

what is the most you can turn out the air screw to lean out the idle circuit. It's on a yz250 1998. It cold fouls plugs like crazy I went to 2 1/2 turns out and it helped alot.
Thanks in advance
JoKeR

 

M

MXFastGuy

LIFETIME SPONSOR

Aug 11, 2001

610

0

• Nov 26, 2002

• #2

You may need a leaner pilot jet, then. Anything beyond 2.5-3 turns probably won't make much difference.

 

B

BEEF706

Sponsoring Member

Jan 24, 2002

1,566

0

• Nov 27, 2002

• #3

Agreed, I went one step leaner in the pilot and it solved my rich off the bottom problem and gave me back a useful range of adjustment on the airscrew. If you go farther than 2 turns out a leaner pilot is probably in order.

 

Y

yzJoKeR

~SPONSOR~

Sep 12, 2002

102

0

• Nov 27, 2002

• Thread starter
• #4

Thanks I'll do that this weekend :thumb:
JoKeR