The Yamaha DT with the VIN number DT1F-91127 is a 1971 model. This motorcycle typically features a 125cc two-stroke engine. The DT series was known for its versatility and off-road capability during that era.
g103e-00428
What size motor is
The displacement is stamped on jug at the bottom it will be #'s followed by cc.
400 cc Yamaha engine
70 hp 1994 yamaha
It's stamped into a tag on both sides of the motor. Just below cylinder head.
The name of the quad will have a number after the model, like Yamaha Raptor 700. The number means the cc is around that number
that is a 1981 yz60h.
I am not sure - but the engine will say how many CCs it has on it somewhere.
what size motor do i have 250ex or 300ex vin number is te19e-2015145
1981 SR185
Tjhe 4BE prefix suggests a Yamaha 225DT from 1992.