MCCULLOCH The official McCulloch thread

[Al Smith]

Good old 16 to 1 oil ratio same as old Evenrude boat motors .Duel usage,lube things up and fog for mosquitoes at the same time .

 

[Sloughfoot]

In addition to several repairs in the waiting, a friend dropped off this 12-25 McCulloch two man saw this week. This one should be interesting.

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Mark

"mix 8 oz 30 weight engine oil with a gallon of gas". Am I reading that right?

 

[heimannm]

That was the best option in the late 1950's. For that reason, the owners manual included instructions on cleaning the exhaust ports and mufflers.

Mark

 

[Sloa]

Question on the amount of gas this carburetor is transferring, seems excessive. Quickly floods itself out. When pulled over slow there is a large volume of gas coming out of muffler. We are under a fire ban so no turning over but when last night before ban that’s when I got the leaks out and it drew fuel like it’s thirsty but flooded itself out.

 

[Sloughfoot]

That was the best option in the late 1950's. For that reason, the owners manual included instructions on cleaning the exhaust ports and mufflers.

Mark

I'd always assumed 2 stroke mix had been around as long as the 2 stroke engine.
Here's a good discussion on the origins of 2 stroke oil. Much later than I thought it would be.

https://yamaha-enduros.com/index.php/forum/general-discussion/19570-early-synthetic-2-stroke-oil