Engine Wont Run Unless Partially Choked

[Chainlube]

Okay I did the opposite of that and used starter fluid to see where it sped up. There were several areas around the carburator that were pulling in the starter fluid:
1) linkage for throttle control on top of carburator
2) seems like the bowl gasket is leaking too. Also there is a defecting the metal of the bowl (piece missing during casting)
3) back side or carburstor there is a brass plug where I think fuel air adjustment would be on a different model. Either the brass plug is leaking or the starter fluid is running down and getting sucked in at the carburator bowl.

Should I just buy another carb? They're $12.00 on eBay.

There should be a rubber boot over the cable to carb joint so it doesn't suck air through there.
Get a new carb Bofeng carb and cable to match.

 

[DAMIEN1307]

Should I just buy another carb? They're $12.00 on eBay.

This is the one I always replaced the normal NT kit carby's with...far superior to the stock NT and is the same price...Built better, runs better.

Amazon.com: JRL 49cc 60cc 66cc 80cc Carburetor 2 Stroke Engine Motorized Bicycle Bike Carb … (silver) : Automotive

Buy JRL 49cc 60cc 66cc 80cc Carburetor 2 Stroke Engine Motorized Bicycle Bike Carb … (silver): Carburetors - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

www.amazon.com

 

[Freddy Snottgrass]

Do that same air leak test around your magneto and crank drive gear (proper name help?). Opposite the magneto. I bet your crank seals don't like you after leaving it out in the weather so long.

 

[Freddy Snottgrass]

I think on most engines, the crank seals are rubber of some sort. They like to pop out or break... If your engines sat, they might have developed a molecular bond with your crank shaft. When you spun your crank, the seals could have torn or popped out a bit. I don't know what I'm talking about though. I just stayed at a holiday inn express...

 

[DJScottyJ]

Okay, I've done that and the engine still won't run unless it's mostly choked.

Your super lean. If u need less air, u have a leak, and need to "choke the engine". This condition is quite dangerous and could lead to failure.

 

[DJScottyJ]

Do that same air leak test around your magneto and crank drive gear (proper name help?). Opposite the magneto. I bet your crank seals don't like you after leaving it out in the weather so long.

Small bevel gear