4 Stroke Engine Dies When Opening Choke?

Because the richer ″choke on″ combination is actually closer to the engine’s typical operating fuel mixture than the thinner ″choke off″ mixture, a motorbike or ATV will only operate with its choke engaged. The engine stalls as a result of receiving insufficient fuel and too much air when the choke is switched off, as described above.

Is the engine supposed to run with the choke fully off?

Yes, the engine is intended to operate with the choke completely off (or open). It is likely that you have an old-style carburetor, and the choke will be a simple plate that opens and shuts at the carburetor’s intake. To close the choke means that you are receiving too much air, and this is what you should be looking for (making it run too lean).

Where does the choke go on a carburetor?

It is likely that you have an old-style carburetor, and the choke will be a simple plate that opens and shuts at the carburetor’s intake. To close the choke means that you are receiving too much air, and this is what you should be looking for (making it run too lean).

What to do if the choke is on 1/2 way?

But, in all seriousness, if you have to keep the throttle halfway open, there is almost always an air leak somewhere in your system. Using a container of starting fluid, check for air leaks around the carburetor. While the engine is running, spray a little amount of silicone around the carburetor intake gasket and the carburetor to intake manifold seal.

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