Benelli TNT125 Service Manual

Checking the Damper of Shaft Sleeve
●Remove the shaft sleeve of rear wheel and check the
rubber damper [A].
●If the damper is damaged or corroded, please repl
ace
it!
Checking the Wear of Sprocket
●Visually check the wear of engine and rear sprocket.
★
If the wear of sprocket teeth is as shown in the
figure, please replace the sprocket and check the wear
of drive chain (see “Regular Maintenance”—“Checking
the Wear of Drive Chain”).
Worn sprocket tooth (drive chain of engine) [A],
Worn sprocket tooth (rear sprocket) [B]
Rotation direction [C]
R
emark
○If it needs to replace sprocket, drive chain may
need to be replaced. Therefore, it is required to check
drive chain when replacing sprocket.
Checking the Deformation of Rear Sprocket
●
Lift the rear wheel from the grounding using a
bracket, so that it can rotate smoothly.
●As shown in the figure, place a dial indicator [A]
near the gear teeth of the rear sprocket. Turn the rear
wheel and measure the oscillation (deformation) of
spr
ocket. The difference between the maximum and
minimum readings of the dial indicator is the
oscillation (deformation) of the sprocket.
★If the wheel axle oscillation exceeds the lower use
limit, please replace the rear sprocket!
Deformation of Rear Sprocket
Standard: ≤TIR 0.4mm
Upper use limit: TIR 0.5 mm
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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