Malfunction | Cause | Remedy |
Cold engine won't start | Problems with automatic launch | |
A) vacuum diaphragm does not work | Eliminate obstruction or replace the top of the carburetor | |
b) damaged or disconnected bimetallic spring | Connect or replace spring | |
V) stuck air damper | Release damper | |
Float needle valve sticking | Clean or replace valve | |
Carburetor pours fuel | If the engine is flooded due to carburetor overflow, start with the accelerator pedal fully depressed | |
High idle speed | Automatic start does not turn off due to damage to the bimetallic spring | Replace bimetal spring |
The engine runs erratically at idle, stalls | Idle speed too low | Set recommended RPM |
Incorrectly adjusted idle mixture | Adjust the composition of the mixture | |
Clogged idle jet | Remove and clean jet | |
Defective fuel cut off solenoid valve | Check and replace valve if necessary | |
No engine heating | Rotate the automatic start unit so that the bimetallic spring is stretched more | |
Engine idling erratically, exhaust pipe "smokes" | Faulty automatic start | Check automatic start |
Float needle valve not closing | Check fuel pump supply valve and pressure | |
Float tightness broken | Replace float |
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