yamaha trying to find year model

[gazza2007au]

im thinking the motor i just bought is somewhere around the 90's but i will need to know exact year to buy parts there are two numbers its a 40hp electric start yamaha 40HE0 and 6H4E407616 thanks to anyone who can help

 

[WillyBWright]

Re: yamaha trying to find year model

1983

 

[gazza2007au]

Re: yamaha trying to find year model

wow its really old alot older than i thought

 

[jeffandsica]

Re: yamaha trying to find year model

I have a 50 HP yamaha serial # 6h4-42611-1. Any idea what year?