james111089 Posted December 31, 2006 Report Share Posted December 31, 2006 just got a yz125 for playing on. when you ran it up on the spot it would bog a little like it needs cleaning out. so i cleaned the carb airbox new airfilter etc and went out 4 a little play. it was still doing the same thing sometimes it would run real clean for a little bit then bog up again. i slowed down to stop and it really did bog up then and just died and had to push it all the way back i think its fouled the plug but what would be the reason for this. im using motul fully synth 40:1 any ideas??? Cheers james Quote Link to comment Share on other sites More sharing options...
james111089 Posted December 31, 2006 Author Report Share Posted December 31, 2006 further inspection it has made the plug refuse to spark anymore so i put a new one in but it still runs the same???? any ideas guys Quote Link to comment Share on other sites More sharing options...
paulthistle Posted January 24, 2007 Report Share Posted January 24, 2007 It sounds as though the ignition may be weak. Probably the stator, magneto, charging and source coils under the flywheel. They are the most common to go out. Also be sure you are using a resistor spark plug. The digital ignition does not like a lot of RFI. Paul Quote Link to comment Share on other sites More sharing options...
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