Old Mariner 5Hp questions

[M1Tommy]

Family kept me busy all evening....but I got the serial no:

Mariner 5
661 S 424XX (last 2 digits X'd out by me).


Does that help ID it?

On the left side of the motor is stamped, "Made in Japan for Mariner International"


Tommy

edit...
I found a link on the web of another one like mine, with better photos. They call it an air cooled motor in the add:
http://www.smalloutboards.com/mar5.htm

[Barnacle Bill]

Its a 1975 air cooled made by Yamaha. You don't have an impeller so you don't have to worry about that. I'm having problems verifiying the oil mix but have a couple inquiries out in outboard repair forums that I participate in.

[M1Tommy]

Its a 1975 air cooled made by Yamaha. You don't have an impeller so you don't have to worry about that.

I found a few bits late last night that pointed towards it being air cooled, too. Now I can quit trying to get water into it!.. yeah, I've tried ...... some pretty "inventive" things, too...... :D

I'm having problems verifiying the oil mix but have a couple inquiries out in outboard repair forums that I participate in.

'appreciated! If it's 50:1, I can cut back a bit and get better plug life.

Tommy

[Barnacle Bill]

I found a few bits late last night that pointed towards it being air cooled, too. Now I can quit trying to get water into it!.. yeah, I've tried ...... some pretty "inventive" things, too...... :D




'appreciated! If it's 50:1, I can cut back a bit and get better plug life.

Tommy

I've gotten 1 reply and they say 25:1. I gotta believe that since it is air cooled. Plugs are suppose to be NGK B7HS gapped at .024

[eddiebhome]

:o You may be right!

[M1Tommy]

I've gotten 1 reply and they say 25:1. I gotta believe that since it is air cooled. Plugs are suppose to be NGK B7HS gapped at .024

I've been running about 32:1, but I usually go a "bit richer. I'll use that for weed-eater gas and make another tank at 25:1.

I'll find that plug, too.
Thanks!

Tommy
P.S. Here's a shot w/ all those cooling fins, below. The motor's not QUITE as dirty as the photo makes it look! :rolleyes: