Benelli TNT125 Service Manual

●Turn off the ignition switch
●Remove the 3P connector of magneto.
●Measure the impedance value among three black
terminals of magneto with a multimeter.
Standard value: 0.8±0.3Ω
(normal temperature:
20
℃
)
★
If the resistance value is gr
eater than the value
indicated above, or if there are no readings (infinite
values) on any two power wire multimeters, the stator
circuit is open and must be replaced. If the resistance
value is far below this resistance value, it means that the
stator is short-circuited and must be replaced.
●Use the maximum resistance range of multimeter to
measure the resistance between each black power wire
and chassis ground.
★Use the tester coil to test whether there is a breakover
on the engine body; if there is a br
eakover, the short
circuit of coil and engine occurs and the charge coil
needs to be checked.
★If the resistance of stator coil is normal, but it shows
that there are faults on the magneto after voltage
inspection, it is possible that the rotor magnetism is
reduced and the rotor must be replaced at this time.
●Start the engine
○Operate the engine according to the revolutions per
minute (rpm) given by the Table 1
K direction
P direction
White
White
White
Green /
white
Blue /
white
- 433 -

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