At an idle only one cylinder is firing. AT full throttle it runs fine.

Could it be a reed valve not closing properly at an idle or a crank seal???

I can put one hand on the exhaust outlet and no compression at an idle.

Any suggestions!!!![img]i/expressions/face-icon-small-disgusted.gif[/img]

 

maybe really really weird plugs, or the reed idea.

 

Changed the plug made no difference!!

 

take out both reeds, and switch them around. if the other one dont run, well then, its obveously the reed.

 

take out your reeds and look at them dont switch them. and get your carbs synced

 

Wheres the DABeechman when ya need him???????????

 

my friends did that too, only he has about five grand into the engine, but if it gets warm, both will fire... his just needs to get warm

 

Five grand, HUMMMMMMMM!!!

I am going to remove the reeds this weekend and install my old FMF's reeds and cages.[img]i/expressions/face-icon-small-smile.gif[/img]

 

I agree with CT330. I think it is carb synchronization.


Don't worry, my playbike does the same thing. Let me guess, its the left cylinder? They are always the culprit on a banshee. Kind of like #7 on a small block chevy.

What reeds do you have now? V-force perhaps? I am looking for a set.

 

Yep, it almost has to be either a bad reed or the carbs are out of sync. Should be easy to fix.