Yamaha 350(?) Moto 4

[dodgewade]

I have a 350 Moto 4 (I think). How do I tell what size it is? The forward and reverse lever is down low on the top of the crank case, left side. Wher is the model/serial number located?

 

[Camo7]

Engine displacement is usually on the bottom edge of the cylinder. I think that vintage of Moto 4 was a 225cc. Your registration papers should name the size. If not, the VIN will allow others here to help.