Benelli TNT125 Service Manual

●After the valve guide
is embedded, carry out the
finishing by using the valve guide reamer.
Note
Add an appropriate amount of cutting oil during
cutting with a reamer. The reamer shall be rotated
clockwise.
●Clean the carbon deposits in the combustion chamber
and valve, and thoroughly rinse the intake and exhaust
valves.
● Check the width of valve seat contact surface (width
of valve seat ring).
○Allowable limit: intake: 1.5mm
Exhaust 1.4mm
Finishing Valve Seat Ring
●Use a 45°cutter to remove the rough or uneven parts
on the surface of valve seat ring.
Note
Apply a layer of transparent or Prussia blue coating
to the valve seat ring, so that it can be seen more
clearly.
Valve seat contact
surface
Rough position
- 218 -

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