Originally Posted by
beebone
Anyone has experienced that when tune the engine near peak power then everything is fine for few tanks. After a long rest, the engine will be richen and bugging in low rpm, then give it fulll throttle for a while, it will be fine. Then it keeps richen alittle itself in the same tank.
I read from the new plug. The plug is shiny, little bit wet around, but the surrounding is black.
Any best way to tune this engine?
Try change the head to the old flash head..i've heard from some of my local guys that the new head is sitting too low and might affect the tuning..even in the recent worlds,robert was using the old head in the finals..can give it a try..