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neither,the yz250f is a four cycle bike...
No its pre mixed only
An Oil Injected motor will have a separate Oil Resevoir, so mixing Oil and Gas is not required, and in fact inadvisable.
unleaded
you don't change your oil on your sled, it's oil injected and 2 stroke, It uses the oil...just keep your tank full
the main difference is a two stroke has oil mixed into the gas weather it is oil injected or pre mixed(adding oil to gas yourself). a two stroke has no intake or exhaust valves,no pushrods,or rockerarms. intake and exhaust into the combustion chamber in done through the sides of the cyllinder walls.
It should be oil injected with a separate oil resivoir.
The gas oil mixture for that sled is 24:1 according to the tag on my 79 srx.
oil is injected, it has separate oil resivor from the gas tank just fill it up with 2 stroke oil and go...
no
actually I think that model has a small tank under the seat if so its oil injected that's a whole different kind of oil. That's oil injected oil no mixing
Mercury has made the 50 in both 2 cycle and 4 cycle. If it is oil injected and there is no oil that you change and no oil filter it is a 2 cycle engine where the oil is mixed with the gasoline.