YG125-23Maintenance ManualFuel system
Fuel system
Disassembly and assembly of fuel tank
Removal and installation of air filter
Removal and installation of fuel tank
Removal and installation of carburetor
Maintenance notice
This section introduces the knowledge related to the fuel system.
CAUTION
Pay special attention to fire prevention while dealing with gasoline!
Take care of the mounting position of such sealing members as the O-ring while removing various parts of the fuel system.
While reassembling, always use new sealing members such as an O-ring.
Technical specifications
Throat opening diameter Φ16mmequivalent
Idle speed 1500r/min ±150 r/min
Throttle handle free stroke 1～3mm
Troubleshooting
Engine ignition is ok, but it does not start
1 No fuel or insufficient fuel in the fuel tank
2 Too much fuel enters the cylinder;
3 Air filter is clogged;
4 Spark plug fails;
5 Fuel tube does not flow well;
6 Fuel quality problem (containing moisture);
7 Fuel is stored too long;
8 Fuel pump failure;
9 Injector failure (clogged)
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