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'parts' motor now a runner

CarMech1969

CarMech1969

Regular Contributor
What originally was a parts motor for my '64 Evinrude Sportwin is now enjoying a new lease on life.
It runs! And pretty damn good too. It's a '72 Sportwin.
A couple of days ago, I picked up 2 coils, 2 sets of points and condensers, a rebuilt carb & all the needed bolts (mine were missing), 2 spark plugs, a fuel pump, and other odds and ends from a blown-up Johnny for $100. Most of the parts are new - I figured how could I go wrong?
I decided to put the carb I 'stole' from the '72 back to the motor it originally came from, along with all the other parts I bought, and the motor runs fantastic.
However, my '64 runs like crap again. I shouldn't have listened to the wife. Stupid me ran along with her idea...run the original '64 carb along with the new float kit I got from the Johnny. What did I think was going to happen? lol lol XD
Anyhow, tomorrow I'm gonna run the carb that was supposedly rebuilt from the Johnny on my '64 'Rude and see what happens.
Keepin' my fingers crossed for two good running motors...:p
 
Ran the '64 with rebuilt carb this morning, wasn't running so hot.
While out on the water, I choked the carb up solid while running at higher RPMs in the hope that any debris in there would get pulled out.
Went for a boot after putting the cover back on. It runs pretty good after that, it almost wants to plane, but doesn't quite get there.
Does this mean that the carb needs to be pulled apart and cleaned?
Or maybe adding SeaFoam to the gas?
Thanks for any suggestions.
 
Does this mean that the carb needs to be pulled apart and cleaned?
Or maybe adding SeaFoam to the gas?
Thanks for any suggestions.
I'd do both. Also check to see if the prop is correct for your boat.
 
SuperT said:

I'd do both. Also check to see if the prop is correct for your boat.
Click to expand...

Hey Super T, thanks for your feedback.
Prop is not the issue, as my '64 Rude ran great with the '72 carb.
I did, however, clean the carb jets out really good with carb cleaner and compressed air, readjusted the float level, and I can get it to plane now.
Even though this carb is rebuilt (I saw the new parts), it is still not as good as the '72 carb. And I didn't do a damn thing to that carb, besides cleaning it up a bit!!
 
Or maybe adding SeaFoam to the gas?
Click to expand...
Now and then I add straight SeaFoam to an empty carb thru the fuel primer hose end removed from the tank. Then let it sit overnight. Not only does it keep the fuel varnish cleaned out of the carb it decarbons the cylinder.
 
guyjg said:
Now and then I add straight SeaFoam to an empty carb thru the fuel primer hose end removed from the tank. Then let it sit overnight. Not only does it keep the fuel varnish cleaned out of the carb it decarbons the cylinder.
Click to expand...

Is it safe to run the carb on straight Seafoam, or should one add some oil to it before starting?
 
It is a petroleum disstillate or a flammable oil. It has the consistency of kerosene. Any time I have a 2 storke engine that won't start I spray it into the carb throat. If she fires right away I know it's a fuel issue.
 
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