- The clutch is not properly adjusted. The clutch is responsible for engaging and disengaging the power from the engine to the transmission. If the clutch is not properly adjusted, it may not be fully disengaging when you shift into gear, causing the engine to stall.
- The idle speed is too low. The idle speed is the speed at which the engine runs when it is not in gear. If the idle speed is too low, the engine may not have enough power to overcome the resistance of the transmission and will stall when you put it in gear.
- The fuel mixture is too lean. The fuel mixture is the ratio of gasoline to air in the engine. If the fuel mixture is too lean, the engine may not get enough fuel to run properly and will stall when you put it in gear.
- There is a problem with the ignition system. The ignition system is responsible for providing the spark that ignites the fuel in the engine. If there is a problem with the ignition system, the engine may not fire properly and will stall when you put it in gear.
To troubleshoot the problem, you should start by checking the clutch adjustment, the idle speed, and the fuel mixture. If these are all correct, then you should have a mechanic check the ignition system.
