The Lifan engines on the later MM 80's, are actually 152f-3 versions.
From the combing research that I have done,, they are supposedly 3hp, not 2.5.
It's a real grey area also,, if they are still actually 80cc's.
I see the 152f-3's advertised ''a lot'' as being 97cc's & 3hp. They also have a ''3hp'' sticker on the recoil housing.
The Mega/Monster moto engine info sticker on front side of the flywheel/fan shroud will probably say 80cc though, as mine does.
Think those stickers are put on here, not at the engine factory in China.
It will also have a factory engine ID stamp on the front case, just to the left of the dipstick,, & should read 152f-3.
Another thing I found out, is that the carbs on the 152f-3, & 105cc -154-f, are the same, & have the same size jets.
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