i have the kyosho GS21 engine.
i successfully detached most of the parts out. but the flywheel part attached to the big shaft that drives the poston i could not take it out... it's way too tight to unscrew it...
is that part really necessary to take out for cleaning up the engine? or the dirt won't get over there?
or can i just spray wd40 anywhere all over to get the dirt inside to leak out?
thanks