Benelli TNT125 Service Manual

Troubleshooting
Oil level is too low
 Oil consumption
 External leakage
 Piston ring is worn
 Improper installation of piston ring
 Cylinder body is worn
 Valve seal is worn
 Valve guide is worn
Oil pressure is low
 Oil level is low
 Oil filter is blocked
 Fuel pump is leaking
 Waste oil is used
There is no oil pressure
 Oil level is low
 Fuel pump gear is damaged
 Fuel pump
gear or gear wheel of clutch is
damaged
 Fuel pump is damaged

Fuel pump is leaking
Oil pressure is high
 Oil filter is blocked
 Waste oil is used
Oil is polluted
 Oil filter is not changed often
 Piston ring is worn
Oil is emulsified
 Cylinder head gasket is leaking
 Coolant is leaking

There is water in the engine
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Benelli TNT125 Specifications

General

Displacement	125 cc
Transmission	5-speed
Fuel System	EFI
Fuel Capacity	7.2 liters
Seat Height	780 mm
Dry Weight	116 kg
Bore x Stroke	54 mm x 54.5 mm
Starting System	Electric
Wheelbase	1215 mm
Engine Type	Single cylinder, 4-stroke, air-cooled
Front Suspension	Upside-down fork
Front Brake	Single disc
Rear Brake	Single disc
Front Tire	120/70-12
Rear Tire	130/70-12
Max Power	8.2 kW (11.1 Cv) @ 9500 rpm
Rear Suspension	Swing arm with lateral shock absorber with adjustable spring preload