big block throttle adapter (gx390 clone)
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A throttle adapter to put my gx390 in a mini quad.Print in PETG (worked for me) or ABS/ASA to survive the heat. Also…
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A throttle adapter to put my gx390 in a mini quad.
Print in PETG (worked for me) or ABS/ASA to survive the heat. Also print it with supports.
You will need longer bolts to install it but I don't remember how long exactly, u should be able to check that in the slicer. (I'm lazy, Ik)
I think I reused the main governor spring on it, but again, I forgot.
REMOVE THE GOVERNOR before using this, unless u want small chunks of steel and plastic flying in your crankcase...
Since removing the governor, watch the rpms (don't go over 4-5k), u really don't want a flywheel exploding. The valve springs should float before an explosion, but still you never know and I don't think its worth the risk on an old cheaply casted clone engine with a rusty-ish flywheel. If you want more rpm (or peace of mind), check out ARC racing for a billet flywheel, and valve springs.
MAKE SURE YOU UNDERSTAND THE RISKS AND DANGERS OF REMOVING THE GOVERNOR. ALWAYS MAKE SURE THE THROTTLE CAN MOVE FREELY AND CAN RETURN EASELY. I AM NOT LIABLE FOR ANY DAMAGE OR INJURY CAUSED BY THIS THROTTLE ADAPTER.
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