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| 1979 Sears Canada Gamefisher 15 outboard |
| Author |
Message |
    
Don Maxfield
New member
Username: madmax65
Post Number: 1
Registered: 05-2009
| | Posted on Tuesday, May 26, 2009 - 11:41 pm: | 
|
Would anyone be able to tell me what the fuel/oil ratio would be for a 1979 Sears Canada Gamefisher 15 outboard? |
Graham Lamb
Senior Member
Username: galamb
Post Number: 5228
Registered: 05-2007
| | Posted on Friday, May 29, 2009 - 12:21 pm: |
|
Don that will be an Eska built model with a Tecumseh twin cylinder powerhead - basically just a lawnmower engine.
The Tecumseh engine is a model 383A (should you ever need parts, that number at a small engine place will help you out).
You can mix this at 24:1 with regular 2 cycle motor oil (such as used with lawnmowers/chainsaws) - don't use outboard TCW3 oil it will burn up too quickly - meant for water cooled powerheads.
If you find it blows alot of smoke at 24:1 you try moving that ratio a bit but would not go leaner than 40:1 at the absolute max. |
william g moore jr
Member
Username: william_m
Post Number: 26
Registered: 05-2009
| | Posted on Tuesday, June 02, 2009 - 11:50 am: |
|
That motor was actually water cooled and will run "TCW". The 24/1 mix is right as this engine had a drilled crankshaft instead of reed valves and depended on good main bearings and oil viscosity to run right. It's delicate cdi bolted under the flywheel with 2 white coils on the cylinder head was susceptible to heat damage --so a good water pump was important. These coils could not be disconnected and spin the engine W/O ruining the CDI. When I worked on them, I would solder the slide on connectors so they would not come off.
Sorry to get so wordy, but these were a real unusual motor with lots of faults. |
Graham Lamb
Senior Member
Username: galamb
Post Number: 5258
Registered: 05-2007
| | Posted on Tuesday, June 02, 2009 - 09:44 pm: |
|
Thanks William, forgot that the 15 and some 9.9's were water cooled - usually answering questions about the smaller singles... |
william g moore jr
Member
Username: william_m
Post Number: 35
Registered: 05-2009
| | Posted on Wednesday, June 03, 2009 - 03:09 am: |
|
If it makes you feel any better, they did make a 9.9 single aircooled under the Sea King banner. Was a wards motor and had the one and only full shift lower unit in the whole production line. Also came in an identical looking 7.5. |
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