Fuel

50cc Scooter only runs when manually choking air intake

50cc Scooter only runs when manually choking air intake
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  • Vovich Mechanicovich
  1. Why does my engine only run with the choke on?
  2. Why does my scooter stall when I give it gas?
  3. Why does my scooter keep cutting out?
  4. Why does my 50cc scooter lose power?
  5. Is it bad to run engine with choke on?
  6. Is it bad to drive with choke on?
  7. Why does my scooter start and then die?
  8. How do you adjust a carburetor on a scooter?
  9. Why is my scooter sputtering?
  10. Why does my moped battery keep dying?

Why does my engine only run with the choke on?

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. ... If a motorcycle or ATV only runs with the choke on, it's because the richer “choke on” mixture is actually closer to the engine's normal operating fuel mixture than the leaner “choke off” mixture.

Why does my scooter stall when I give it gas?

This can be caused by a faulty petcock (or vacuum leak), bad hoses, clogged fuel filter, stuck float, any of which could also be exasperated by low quality gas.

Why does my scooter keep cutting out?

An intake leak really messes up the air/fuel ratio on your scooter and this can cause idling issues or worse, piston damage. ... On many scooters this hose or 'boot' deteriorates over time due to heat exposure. A faulty rubber intake hose is one of the most common cause of intake issues on scooters.

Why does my 50cc scooter lose power?

There are basically three issues that can cause this problem; bad fuel, clogged fuel filters, or carburetor / fuel injector issues. The best way to solve this issue is to empty the fuel tank, inspect all fuel lines and filters, and clean the fuel system (carburetor or fuel injector).

Is it bad to run engine with choke on?

Leaving the choke on for too long will cause unnecessary engine wear and waste fuel. ... The engine needs its fuel to be vaporised in order to burn it. This is done by the carburettor where the fuel is mixed with clean air coming from the air filter, and sent into the pistons to be ignited.

Is it bad to drive with choke on?

3 Answers. It will not damage the engine at all. All that will happen is that it will run richer, thus using more fuel. If you did it for thousands of miles you'd probably end up with more deposits in the engine/exhaust, but even that is easy to sort.

Why does my scooter start and then die?

Clogged fuel filter or line. Bad off-switch, grounding out from vibration... ... Also what others have said, possibly a clogged fuel filter, maybe a vacuum leak(should be able to hear a hissing noise near the engine), or a clogged jet in the carb.

How do you adjust a carburetor on a scooter?

Rotate the High jet counter-clockwise to 1 and 1/4 turns open. Rotate the low jet counter-clockwise to approx 1 and 3/8 turns open. Now, if the engine doesn't start, you may need to turn the low jet slightly one way or the other for the engine to start. Adjust the low jet as desired until the idle is where you like it.

Why is my scooter sputtering?

The problem of having an engine “sputter” is typically caused by a fuel system issue. ... Typically with most pit bikes, the problem is going to be with the spark plug or the carburetor; with the fuel system being the primary culprit. The first step we recommend is to check the efficiency of the spark plug.

Why does my moped battery keep dying?

Leaving the ignition switch on, lights, or other user installed accessories will drain the battery. It's possible that your battery is in poor condition and/or not being charged properly when the scooter is running. ... Cold weather, especially freezing and below, have a negative impact on battery performance.

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