4 stroke mopeds

"I don't know a thing about 4 stroke engines, if the engine has a cap on it that requests 10w 30 motor oil does that in fact make it a 4 stroke?"

Re: 4 stroke mopeds

"The only 4 stroke moped I know of is an AMI Indian. I happen to own one and there are valves and lifters on the top o the cylinder head. Normally I would say you have a 2-stroke but typically the oil viscosity is not an issue because it is mixed w/gas. Check to see if the oil is for the crankcase (Usually for 4 Stroke)or simply for the gear lubricant. Usually this is ATF trans fluid. Best way to check is to remove the spark plug and turn over the motor. If the plug fires every time the piston comes to the top of the head its a 2 stroke. If it fires EVERY OTHER TIME, its probably a four stroke. Be careful, and make sure, you never want to run a 2 stoke w/o oil in the gas. If you run oil in the fuel of a 4-stroke you will loose some minor performance and probably foul the spark plug. My recomendation until your positive treat it like a 2-stroke and mix the oil. Good luck. "

Re: 4 stroke mopeds

You learn something new everyday

Re: 4 stroke mopeds

Honda PC50 is 4 stroke as well...

Honda pc50.jpg

Re: 4 stroke mopeds

Christopher Stawski /

Yes indeed and I have 2

They run 10-30 oil for both transmission and engin (same oil)

Re: 4 stroke mopeds

I've got one in the garage.. saved it before the guy was going to send it in as scrap metal.

Re: 4 stroke mopeds

no one of covfefe /

party like its 1999

Re: 4 stroke mopeds

Post a photo of the engine and we'll probably be able to tell you (edited)

Re: 4 stroke mopeds

Steve Mertz Wrote:


> Post a photo of the engine and we'll probably be

> able to tell you

This thread is almost 16 years old. He probably didn't have a digital camera ya hippy.

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