No disassembly of the servo. Only degreased the pivot points then a quick spray with crc. Battery seems to be holding charge. checked a few other posts and battery voltage is comparable.
Not sure how to check RC valve is opening fully at high rpm. help?
next step will be to check the loom.
my thoughts are still leaning towards rich mixture.
Had another look today: fuel tap out(little bit of debris on the mesh), plugs are changed, checked voltage.
Took it for a ride: still has a little stammer at 9-10k, but there is a flat spot now(new) at around 4-6.5k then boom, band kicks in like a horse. from idle to 6.5k, exhaust has a high pitched popping sound(not a back fire).????
Sorry for my lack of knowledge guys. passionate about this bike, but its a love/hate relationship.