07-19-2006, 07:24 PM
to me it looks like you were running too lean, to rocco that's carbon build up from running too rich or not "clearing it out". Not talking for you roc, I just know that's what you think...lol
anything that is Burned (Black) in a RC motor, IMO, means it was too hot so it burned.
My Sirio .18's piston wasn't black after 8 gallons. My Ebp5 piston was light brown after 4-5 gallons. My blown 2.5's piston was black.
anything that is Burned (Black) in a RC motor, IMO, means it was too hot so it burned.
My Sirio .18's piston wasn't black after 8 gallons. My Ebp5 piston was light brown after 4-5 gallons. My blown 2.5's piston was black.
Mugen MBX5T
RBS5
RB2045
Futaba 3PM
Hitec 5955, 5965
RBS5
RB2045
Futaba 3PM
Hitec 5955, 5965