Benelli TNT125 Service Manual

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Fault phenomenon—Too high or too low idle
speed (idle speed is obviously inconsistent
with target idle speed)
Too high
idle speed:
 When the water temperature is
lower than 68 degrees, the system
will increase idle speed to
accelerate warming-up process,
which is normal phenomenon.
Check the items according to the
following items except that
 Check whether it needs to adjust
the negative pressure equilibrium
of cylinder
 Check whether valve clearance,
especially exhaust valve clearance
is too large
Too low
idle speed:
 Check fuel quantity in fuel tank,
fuel filter, fuel line pressure and
nozzle
 Checking Valve Clearance and
confirm whether it is too small

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