Same as any four stroke engine, turn the tap off AFTER stopping it. Never run the carbies dry deliberately. Running the float bowls empty will run it lean for one thing, it will also allow air to get to the insides of the carby that are normally wet with fuel.
Plan ahead, and don't put in any more fuel than is needed for your last use, then run the engine dry when you finish using it. This will prevent both "stale" gasoline in the fuel tank and "varnish" buildup in the carburetor from evaporating gasoline.
Draining the carburetor removes water and contaminants that can build up in the carbs over time and cause clogs or damage. We recommend completing this process every time you plan to store your bike for more than two weeks: Locate the float bowl on the side of the carburetor.
To prevent carburetor buildup, it's important to use clean and fresh fuel, replace the air filter regularly, and add a gasoline treatment to the fuel tank to keep the fuel system clean and avoid letting the car sit for long periods without running it.
Disadvantages of Carburetor Feeding Engine
In a carburetor fuel feeding system, the engine cold start is a big issue. Lean & rich mixture often becomes a hassle in the carbureted engines. Due to inefficient combustion, the emission is significantly high in the carbureted engines.
Generally, a motorcycle can sit for about a month without someone riding it. However, any longer than that requires it to be properly prepared for storage.
The carburetor affects everything from fuel consumption to idle, acceleration, and high-speed driving. If you're having issues in any of these areas (and many others), your carburetor could be the problem.
On the other hand, WD-40 is safe for your device and allows you to clean the carburettor, throttle body, as well as unpainted metal parts of the machine. The dual-action cleaning system of the liquid leaves no stone unturned to provide you with a clean carburettor.
The carburetor also does not have any fast-moving mechanisms to deliver fuel into the engine. Running out of fuel will not cause damage to the fuel system or the carburetor. However, running out of fuel on a carbureted bike may instead take a larger toll on the engine over the fuel delivery mechanism.
Deposits inside the carburetor can clog fuel and air passages and reduce performance or stop the engine altogether. Luckily, you can take care of many of these problems quickly and easily; often without even removing the carburetor from the engine.
The presence of oil and its distribution is absolutely crucial to an engines continued operation. Engines can work without oil, but the effect is so damaging they are only capable of running for less than 30 minutes until failing - and in most cases, it's a lot quicker than that.
Without oil, the engine runs for around 15 minutes without bursting into a cloud of smoke, but taking it apart reveals some serious damage. Lacking proper lubrication, all the metal components in the engine rub against each other, causing an incredible amount of premature wear.
A much better solution is to use some WD-40 Multi-Use Product. Most people don't know that WD-40 can solve many of their household cleaning needs quickly and easily. When cleaning a toilet bowl, WD-40 works by softening the rust and lime deposits, so they can be easily wiped away.
With engine running:
Spray down and around the carburetor throat to remove deposits from the throttle plate area. Do not spray down carburetor throat with engine off. Do not spray below throttle plate. Choke: If choke sticks, remove choke cover and spray.
However, it's important to use a non-corrosive cleaner which doesn't harm or degrade any plastic or rubber pieces on the carburetor. You should avoid using vinegar, because the acetic acid makes metal susceptible to rust.
The “Bog” simply means the engine is not receiving enough fuel when you go to wide open throttle. While there are other issues that may cause similar reactions within the carburetor, often the problem can be traced back to the accelerator pump system. Incorrect adjustment is the typical culprit.
This method involves looking at the base of the spark plug insulator (white part of the plug) for a slight coloring on the insulator just above where the insulator comes through the steel case. If the mixture is too lean, it will leave no color, while a rich mixture will cause the fuel ring to become more prominent.