1)how did it lock up? if from setting for years try removing pugs and putting oil in the cyl's let set for day or two try turning over with braker bar from the bottom unlock?? A motor does not lock. If you meant the term "locked up", this means that the motor had a bearing failure, and needs a 100% rebuild.
No. The 350, is a 5.7.
Yamaha rd 350
There is no difference. There both the same engines.
by the dispacement
WHAT DO YOU MEAN
will a 300 honda motor fit a 350 honda rancher
Ford never made a 350 motor
No, they will not.