Need Motor Identified...PLEASE!

Can't Cast

Seaman Apprentice
Joined
Feb 13, 2010
Messages
31
Just purchased a used Mariner (made by Yamaha). Need some professional help in identifying it, because I can't find anything conclusive searching the internet.
The motor reads 684CS-002009 on the ID plate. It's a short shaft, tiller, pull start motor. It has a 9.9 hp cowling, and was sold to me as a 9.9.
According to my look-up efforts it seems to be a 1978 15 hp (unless the chart was wrong or I dunno how to read it correctly...) Could this be a 15 hp with a 9.9 cowling, or will the 9.9 cowling fit a 15?
Think it's a 15, but I'd sure like to know for sure.
You folks have helped me before, and this is a great forum with some great people. Thanks a bunch!:redface:
 
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