7.5HP Ted Williams Outboard

This is my grandparents Sears Ted Williams 7.5HP, air-cooled, 2-stroke outboard.
This is the second and third time it's been started in probably 25 years. Hopefully I'll be able to get some video of it in action later in the year. Anybody know if thismodel has an impeller?

**EDIT** I believe this is a 1975 model made by Eska. I also found out the powerhead on it is made by Tecumseh.

Model # 217-58591-0
Serial # 5B-216401

Category:

Entertainment

Tags:

• Sears
• Ted
• Williams
• Outboard
• start
• stroke
• air
• cooled
• 7.5
• HP
• old
• cold
• pull
• tecumseh
• 1975
• eska

[13boatman]

Hi i have the EXACT same motor. What fuel mixture does it take for sure? Also do you know the year of it, cant seem to figure it out.

[launboy8]

@13boatman

I'm not sure what it takes. I think I mixed it at 32:1. The only time I've ever ran the motor was in that test garbage can, and it seemed to run well. I'd feel comfortable running it at the ratio, no guarantees though.

[elchepe34]

i have the same motor but i notice the it dont have a fuel pump so is it gravity fed or does it matter if the tank is liwer then thr motor??

[launboy8]

@elchepe34

Not sure. I used the built in tank. Don't have an external one for this motor

[briggs5sboy]

I have this same engine and i'm trying to figure out where the heck i get leaded gasoline. Ha Ha i think it runs fine on unleaded though

[launboy8]

@briggs5sboy

Pretty sure you can't anymore. You might be able to buy lead additives. I just used unleaded gasoline. Google it. There are a lot of guys running old outboards who could give better advice then me.

[defan266]

its a 24 : 1 mixture for sure and its a 73-75 for the year . i have the manuals for mine .

[cahs89]

i just got one of these last week as a gift, and it hasnt ran in about 10 years. what kind of work did you have to do to yours? the popular answers i hear are clean the carb, change impeller etc, but i was wondering if you had to do any other major work. mine sat around in a garage during those 10 or so years, so its not like it sat out in the weather with the cowling off exposing water to it.

[mirraco51]

redneck blender?

[RevoPwns]

i have the same motor use it on my john boat runs great still use everytime i go out on the river

[makdaddy99]

@launboy8 almost 100% sure it does have an impeller to cool the exhaust. Does not cool engine just exhaust and to keep main bearing alive longer. Cooling only takes place when in gear. Never run for extended periods in neutral for this reason

[curtbarile]

correct me if I'm wrong but leaded fuel was made for soft valve seats to prevent damaging them, when changing a engine from lead fuel to unleaded you should install hard steel valve inserts to prevent the valve from grinding/damaging the old valve seats prematurely, meaning about half its life time. You engine is a two cycle engine and has no valves in the head, it has ports, and no damage can be expected there,and its air cooled and has no impeller, fan blades are on the fly wheel, good eng.

[curtbarile]

correct me if I'm wrong but leaded fuel was made for soft valve seats to prevent damaging them, when changing a engine from lead fuel to unleaded you should install hard steel valve inserts to prevent the valve from grinding/damaging the old valve seats prematurely, meaning about half its life time. You engine is a two cycle engine and has no valves in the head, it has ports, and no damage can be expected there...... Any more info here is welcome.

[URanInTheUglyForest]

I have a similar 5.5 hp version. I hope it will crank. It's probally been 30+ years. You can get a lead substitute additive at the auto parts store. I highly recommend it. The lead was added to fuel as a lubricant. Just like molybdenum is added to chain lube. This is why you need to change to hardened valve guides when rebuilding old v-8's.