72 Stinger Carburetor

[beaters]

Hey all,

I have a 72 Stinger 340. Appears to be in decent condition, but is missing carburetor. What make/model of carburetor do I need for this sled? I'm assuming a Mikuni or a Walbro of some kind?

Thanks for any help!

[mooreperformance]

I am thinking that you have a Sachs 336 SS single cylinder engine.

I would suggest that you install an HD13A Tillotson carburetor. If you install any other Tillotson HD make sure it has a return line to the tank.

Be careful when purchasing a Walbro Diaphragm carb. The Walbro carbs with numbers higher than WDA30 are jetted very lean for a air silencer and will burn up an engine without the silencer.

If you do install a Walbro, I suggest a WDA6. Whenever rebuilding a WDA carb always use an original Walbro rebuild kit (never an aftermarket kit).

Going to the trouble of installing a Mikuni slide carb would not be worth the effort. There will be no horsepower or fuel economy increase on a 26 hp engine.

[beaters]

I may be mistaken, but I believe the sled has a Cuyuna engine. Will have to check, haven't had a chance to give it a good look over since I got it home.

[ddub]

I am not sure if the cuyuna started in 75 yet, but Scorpion purchased Rockwell in August of 74.

So if you have a Cuyuna and you have a 72, than you have a transplant. Scorpion did not use a Mikuni that early and only on a few models even later.

You might want to post some pics of the engine so the gurus know which engine that you have.

[scorplover]

They started calling Rockwell engines Cuyuna engines in 1976 according to what I have read.