Why does my engine run better with the choke on?

Why does my engine run better with the choke on?

An internal combustion engine needs a precise mixture of fuel and air to run properly. The choke increases the amount of fuel in the mixture, creating a richer mixture. This allows the engine to function at its best until it has warmed up enough to run on its normal operating fuel mixture.

What does it mean when a small engine only runs on choke?

If your lawn mower only runs with the choke on, check the carburetor. The carburetor brings air and fuel together and mixes them in the perfect ratio for combustion before they enter the engine. There are several passages in the carburetor that allow fuel to enter the air stream depending how the throttle is set.

Why does an engine only run on choke?

An internal combustion engine needs a precise mixture of fuel and air to run properly. When the engine is cold, it needs slightly more fuel in the fuel/air mixture for it to start, which is what the choke does. The choke increases the amount of fuel in the mixture, creating a richer mixture.

Can a tractor run with the choke closed?

Tractor only runs with choke full closed SOLVED!!!! I disassembled, cleaned, and installed a rebuild kit in my carb. When I re-installed the carb now the only way the tractor will idle or run full throttle is with the choke fully closed. If I move the choke any bit open the engine dies .

Why does my Harley Davidson only run when choked?

Possible intake leak or low speed / idle circuit clogged in carb. Try some Seafoam in tank.. I have not ridden my bike for a while. When I went to start it I pulled out the choke and the bike started fine. Once it had warmed up sufficiently I pushed the choke in and the bike dies.

What makes a grass trimmer run in choke?

Your grass trimmer allows you to regulate the fuel and air mixture in the carburetor with manual choke settings. The carburetor — or carb for short — runs on a mix of fuel and air. The mix burns in the engine cylinder and produces power.

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