My motorcycle runs poorly but I use the choke a little and it runs well.

Likely a fouled carburetor or water in the fuel bowl. Try draining all the fuel, see instructions in manual.

Take a clean dry fuel container to the gas station and get 1 gallon of fresh fuel. Add 1 ounce of Seafoam fuel treatment. Measure don't guess. Poor entire gallon into generator.

Start generator. If same problem, then carburetor is fouled and will need cleaning. You could try running with the treated fuel and it may clear the fouling. Otherwise a more thorough cleaning will be necessay.

its on the carburettor to enrictch the fuel/air mixture for cold starting

Sounds like the carb's need cleaned. If the jets are plugged partly off it can't get enough fuel unless the choke is on. Normally if the choke is on the engine will run a little faster, at least until it is warmed up.

More likely to be a leaking inlet rubber or a lack of air filter. The choke cuts air flow not fuel.

Hi there,

had the same problem before. What you need to do is to cancel out those basics that prevents the engine from running.

1. Check the spark plug, poor spark causes poor engine performance.
2. Poor fuel. Make sure no water is in the carburetor.
3. Idling problem or fuel-air mixture.

Quick Fixes:

1. Rev the engine with the choke ON. rev for at least 30 seconds to drive moisture out.
2. Drain the carburetor for any water deposits. This makes a bad mixture in the combustion.
3. Clean your spark plug.
4. Tune your Fuel-Air mixture to 2.5 turns out... Turn it clockwise until it stops and make 2.5 turns out. That's the standard.
5. Set your idle later if the engine's hot enough for idle run.

Your problem mostly is caused by poor fuel dispersion. Since pulling the choke entails less air and more fuel, it could be that that your engine requires more of it. If you have the time to remove the carburetor for disassembly, i recommended doing so. Remove the carb and clean the jets, make sure you put everything back in order.

That's it.. Let me know if there's any more problems... this is my usual approach.

I hope it helps,
levibit

1. When you rev it up, has it reached its normal operating temperature?
2. If you know how to then check your timing as it sounds like a little off at the moment. When did you have it adjusted last?
3.You can add some fuel cleaner when filling up again and run with it until the tank is low again.
God enough, then return a comment. Thanks

Take your carburetor off , disassemble , and shoot carburetor cleaner through the jet and body passageways.

Put the air filter back on the carbs! You might think that because of the freedom, it's breathing better, but the truth is that you actually manage to evaporate the little amounts of gas going into the chamber so the mixture is so poor you can't get ignition.

Throttle cable needs oiling ,Up for choke on .

You might be too rich on the pilot jet. (Too large)
Run it for a minute with the choke on, then shut the choke off, and let it run with just a little thrttle till it's warm. If it doesn't "clear" up, your jetting may be off. (The pilot does idle) Pull the plug to see what color it is. Black is too rich. (Too large of a jet)