Venus with YS63 questions
YS 63 four stroke??
I am running a 13X6 prop on mine. I am running YS 20/20 fuel.
The break in is about three or four tanks of slightly rich running. After that it is all done and ready to run.
Tuned pipes are for 2 stroke. They do nothing for a 4 stroke engine.
I do not know the RPM, but it yanks my Spectrum up like a rocket.
Dru.