Interesting about motorcycles

Motorcycle dies when choke is off

Why does my motorcycle die when I turn the choke off?

It can be caused by an air leak. Air leaks can be caused by cracks in the vacuum lines on some carbs, a crack in the air boot, or simply a loose clamp between the carb and the air boot. Remember, more air in the system means a leaner air/fuel ratio, thus causing an overly lean condition when the choke is turned off.

Why won’t my bike run with choke off?

A choke is active when it is closed;that is, it is on when it is closed. Normally you would keep it on (closed) until the engine warms up and then turn it off (open). If it really won’t run without the choke being closed/on then it’s not getting enough fuel and the carbs probably need cleaning.11 мая 2010 г.

Why does my engine only run with the choke on?

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. … Both the manual choke system and the manual primer system engines may experience this similar symptom of running only when the fuel mixture is enriched.

Is it bad to run a motorcycle with the choke on?

It’s perfectly fine to start the bike with the choke on, then ride it until it warms up a little before turning off the choke. Absolutely no extra stress on the engine, at all. Revving the engine before the bike is warmed up, though, does put stress on the engine, as the oil is cold and lubrication isn’t as good.

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Why does my motorcycle keep cutting off?

I would do the obvious first, check the fuel vent for the gas tank, change the fuel filter, make sure your grounds and leads are tight, look at your connections @ the ign switch if possible and check all the fuses they don’t always blow clean sometimes connection is an issue. Then try the more specific stuff.

How long should I leave the choke on?

30 seconds

Is choke up or down?

If you have the NT carburetor the choke is on (closed) when the lever is up. If the engine isn’t running it doesn’t make any difference where it is. The choke should be off (open or down) when you’re riding. Just remember to shut off the fuel petcock when the bike is parked.

Why does my motorcycle run better with the choke on?

As far as your bike running better with the Choke ON, that is a clear indication that your engine is being fed a lean mixture. Most carburetors have a choke that operates by either adding more fuel or by restricting incoming air. Both methods produce the same effective enriching of the mixture.

How do you fix a rich fuel mix on a motorcycle?

The 6 main ways to fix a motorcycle running rich are to:

  1. Adjust the air to fuel ratio.
  2. Check if the needle is sticking in the carburetor.
  3. Check for stuck open floats.
  4. Clean your air filter.
  5. Check for stuck open butterfly valves.
  6. Change your O2 sensors if your motorcycle has them.

What happens if you leave the choke on too long?

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.

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Why does my lawn mower only run for a few seconds then dies?

It could be from a dirty carburetor, a malfunctioning spark plug, insufficient flow of gas to the engine or a clogged air filter. But if your lawn mower starts then dies, the causes could also be the same. The most common cause of why a lawn mower starts then dies can be due to a carburetor problem.

Why do I have to choke a warm engine?

In warm weather, a richer mix (more fuel in mix) is simply wastage of fuel as unburnt fuel is simply expelled. If the engine and carburetor are hot, it may happen that putting choke on will prevent ignition (engine won’t start and one can smell petrol in exhaust).

How does choke work on motorcycle?

Motorcycle Choke – How It Works? Therefore when the choke lever pulled the valve opens its lid and air inhaled through this lid. It directly sucks the fuel from bucket due to piston vacuum pressure or venture effect. It feeds this excess fuel to the regular air-fuel mixture flow before the engine intake manifold.

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.

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