97 YZ Problem

ckat

Member
Joined
Mar 1, 2003
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13
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#1
Hey guys,
I've got a really aggrevating problem. My '97 YZ250 runs great while I am riding, but when I park it for 30 minutes or more, gas on or off, it fouls a plug as soon as I start it back up. As soon as I start it, within 5 seconds it fouls a plug. Does anybody know what is going on? Any help would be greatly appreciated. Thanks in advance.
Collin
 
Joined
Sep 4, 2003
Messages
28
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#2
i think it could be doing this because of too much 2 stroke oil or not enough. too lean or too rich
 
Joined
Oct 26, 2003
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#4
sounds like it is too rich on the pilot, how many turns out is the air screw?? I had to drop my pilot from a 50 to a 45 to keep it from fouling.