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OMC FoMOCo model NUFM12AX Engine specs and data

B

boatvern

New member
" Can anyone ID this setup.
O

" Can anyone ID this setup.
OMC I/O engine has FOMOCO emblem cast in front cover. casting # on block is 681F6015DA. OMC exhast manifold. I can find no specs. or data on this engine. Carb on one sid and exhaust on the other. It is a marine engine installed and running. I cannot find any specs or data on this motor, it is in a 74 seaswirl, the outdrive is the old omc with thru transom steering cable.

OMC aluminum tag on cylinder head says Model NUFM12AX, Serial W155914 "
 
"Boatvern,

[B]Model NUFM12A

"Boatvern,

Model NUFM12AX indicates it is a 90HP OMC Sterndrive from 1971.

We sell manuals for it. The service manual has specs, go to this link.

Regards,
Andrew"
 
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