I have flown this engine very rich... too rich maybe... I have been flying it in a plane for one month now... and this morning it all of sudden started overheating... I could see no more smoke and feel that I have no more power... I have checked for leaks, nothing... I have changed nothing... just overheating for no reason... I have now taken off the cowling to try sort it out next time I fly it... I fly the engine pretty much full throttle all the time for 4min at a time before I land... at half throttle the engine just seems to be boggy, so I fly 3/4 to full all the time... is this ok? could this also be why its so hot? I don't know... good response also, I have set the LSN to 1.5mm gap like the manual says... so the LSN is not too lean... the only ideas I have is to just change fuel line which is really new, change plug maybe... I use a 13x8 prop with 10% omega pink fuel... castor content, not synthetic... who can help?