1983 Yamaha 70 HP BETO

netsomnia

Cadet
Joined
Mar 26, 2004
Messages
24
Hi,

I just bought a 1983 Yamaha 70 horse BETO today. Does anyone have any good experiences with this motor? I want it for a river/lake fishing boat. The hull is by MonArk but I am considering swapping the boat for a used 1750 Alumacraft instead.

The motor has not been started for a year but supposedly it ran okay. Appreciate your input on the motor. It's my winter project but hopefully just changing the gear lube and draining the old fuel is all it will need. Supposedly the carbs were rebuilt 2 years ago. Has anyone drained the carburetor of old fuel on this motor? I found the service manual with google but not sure how to drain the carbs.

Thank you!
 

netsomnia

Cadet
Joined
Mar 26, 2004
Messages
24
Re: 1983 Yamaha 70 HP BETO

Correction. It's an 1984. Is this Forum dead? All dealers and their mechanics here?
 

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
9,116
Re: 1983 Yamaha 70 HP BETO

Sitting for a year?
Take carbs and whole fuel system apart for cleaning and adjust like service manual calls for when put back together
 
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