Why does my lawn mower only run on full choke?

If you have a choke lever separate from the throttle and the engine only stays running when choked, then your carburetor has a fuel blockage causing it to be too lean(not enough fuel). The only way to balance the fuel air mixture is to restrict the air by choking it. That’s why it runs better on choke.

How do you fix a lawn mower that only runs on choke?

You have a couple of choices to solve this problem: clean the carburetor or replace it. Most carburetors can be cleaned and made to run like new again. Cleaning a carburetor isn’t difficult, but it does require the carb to be mostly disassembled. Replacing a carburetor is a fast and easy repair.

Why does my small engine only run on full choke?

Why would the engine only run while the choke is on or with repeated manual priming? An engine that requires the choking ( partial or full ) after initial engine warm up is an indication that the engine fuel air mixture system is out of adjustment.

Why does my lawn mower run better with the choke on?

If your mower is running better when the choke is on, it means the mixture in the chamber is lean. Too much air is getting into the chamber, so when you “choke” the air intake, the mixture stabilizes, making the mower run better.

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Why won’t my mower run without the choke on?

A mower failing to run without having the choke fully engaged is often the result of a faulty carburetor that either needs to be replaced or cleaned.

Why does my small engine only run on half choke?

If your engine only runs when it’s half choked, there’s a problem. When a two-stroke only runs on half choke it is usually the result of a dirty fuel cap, a leaking gasket, a clogged carburetor, or a gunky passageway. In rare cases, it could be the result of a crack somewhere on the engine.

Is it bad to run mower with choke on?

it is not advisable to run lawn mover engine in the choke position. For start up it is OK. But after it for normal running, choke position is not advisable. In that position the engine will consume more fuel.

Where is carburetor on lawn mower?

The carburetor is part of the mower’s engine. Typically, it is bolted to the side or top of the engine. It is also connected to the gas tank, and will typically be located just below or behind your air filter.

How do you clean a carburetor?

Make sure the carburetor is cool to the touch before cleaning.

  1. Dilute cleaner. …
  2. Clear air filter. …
  3. Remove the carburetor. …
  4. Remove carburetor float. …
  5. Remove other removable components. …
  6. Soak and scrub components. …
  7. Rinse and dry. …
  8. Reassemble and replace.