RZV500R Motor I.D.

[V4 Stroker]

How do I check if the motor is the one that came with the frame?
Apart from looking at the bolt heads holding it in etc to see if they've been disturbed is there another way?

[2manyprjx]

Unlike Honda, Yamaha's engine and frame numbers usually match.

[tacky1]

There is no way to check the RZV motor to see if it’s the original motor. No engine numbers on the RZV. So it wouldn’t really affect the value like other non matching numbers bikes.