Troubleshooting (Aisan)

Runs Rich Check float level. Test the needle & seat for leaks Weight the Nitrophyl float for proper gram weight....

If you have fuel coming out the top of the carburetor, or around the throttle shaft, it indicates you’re getting...

Carburetor icing will usually occur when the ambient temperature ranges between 30° to 60°F, when the relative humidity is above...

Does your engine idle too fast? It could be the idle solenoid. 2nd solenoid in the above illustration. To check...

Note: We assume the engine and emission control system is operating properly before troubleshooting the carburetor. These are things to...

Possible causes are below, these are the most common possabilities slow jet clogged slow jet not seated properly in main...

Many of the same issues that cause a poor idle will also affect the carburetor at high speeds. Most common...

Please note: there are many things that could cause your vehicle to have poor fuel economy, we are only discussing...

Note: as always, we’re assuming the engine is properly tuned and will only cover issues with the carburetor The most...

Thermostatic Valve Thermostatic valve not operating at high ambient temperature (this prevents cool air from flowing through main body and...

When you step on the gas and get as stumble or hesitation it’s typically caused from a lean fuel condition....