Hi everyone, i'm new to the site and could use a hand. I bought and older 1978 artic cat jag 3000 but it has a yamaha engine in it. I need to find out the year and motor size (cc). Only #'s i could find is S433-039536. The 2 spark plugs are on angles and there is 8 bolts holdning each head ,4 big,4 small. will post pics when i home home tahnks for any help . Be safe.
I'd say that's a 70's 433. Had the same motor in my Sno-Jet.
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