, but I'd like to put some fuel system cleaner in the gas to potentially clean up any varnish. Is it ok to use fuel system cleaner in a 2 stroke engine?
2nd question. This is a Kymco scooter and the manual was obviously written for markets other than the U.S. It specifies "refill #92 or #95 nonleaded gasoline". I don't think they mean 92 or 95 octane? Do most 50cc scooters run fine on regular 87 octane?
1) what varnish are you dreaming about?
If you want to clean something...find its fuel line and install additional fuel filter instead!
2) And yes.....they meant RON 91 or RON 95 octane fuel....if I am correct...that is your regular gasoline there
You dont need premium.......unless if you will tune that 2stroke engine
3) for non tweaked engine......API TC or API TD oil will suffice......you dont need to pay premium for oils mentioned above.....