Homemade 5.5 HP 4 cycle outboard From leftovers.

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swampratt

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The time came for me to use up some stuff I had laying around.
Outboard from the 50's lawnmower from 2009
I removed the power unit from the lower unit and there was a splined shaft sticking up.

I pulled it out and I cut this shaft shorter and made the round shaft into a 3/8" square for the upper 2" of it ..I slipped a 3/8" drive 9/16" deep socket onto the shaft and then in the lawnmower output shaft installed a bolt with jam nut also 9/16".

Easy enough ,,Now i need to mount the engine to lower unit.
I used a chevy crankshaft pulley..
For linkage i used some 6011 welding rod that I removed the flux from it with a Hammer and sandpaper.

Built a steering arm from chain-link fence rod.
Runs great.. The engine was free a few years ago as was the lawnmower.

I had to buy some nuts and bolts and some all thread. I have less than $7 in it.
outboard 001.jpg

The throttle rod is the 6011 rod I cleaned the flux off of.
It passes through a nut welded to the steering arm.
This nut has a section of vacuum hose inserted into it to create tension on the throttle.
Works great, and cheap to boot.

outboard 004.jpg

The finished project.

outboard 005.jpg
 

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