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Benelli TNT125 Service Manual

Benelli TNT125
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●Measure the roundness of inner wall of cylinder (inner
diameter difference between X and Y directions).
Allowable limit: 0.05mm.
Measure the cylindricity of inner wall of cylinder
(inner diameter difference between X and Y directions
in upper, middle and lower positions).
Allowable limit: 0.05mm.
●Check the planeness of cylinder surface.
Allowable limit: 0.05mm.
Measure the inner diameter [A] of connecting rod
small end.
Allowable limit: 14.05mm.
Installation
●Install piston ring.
Apply oil to
the piston ring and piston evenly, make
the piston ring mark side up and install it properly.
Note
Do not scratch the piston and do not break the piston
ring.
After the piston ring is installed, it can rotate freely
in the piston ring groove.
Inner diameter of small end of
connecting rod
Upper
Middle
Lower
Ruler
Feeler gauge
Cylinder
Top ring
Second ring
Oil ring
- 231 -

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Benelli TNT125 Specifications

General IconGeneral
Displacement125 cc
Transmission5-speed
Fuel SystemEFI
Fuel Capacity7.2 liters
Seat Height780 mm
Dry Weight116 kg
Bore x Stroke54 mm x 54.5 mm
Starting SystemElectric
Wheelbase1215 mm
Engine TypeSingle cylinder, 4-stroke, air-cooled
Front SuspensionUpside-down fork
Front BrakeSingle disc
Rear BrakeSingle disc
Front Tire120/70-12
Rear Tire130/70-12
Max Power8.2 kW (11.1 Cv) @ 9500 rpm
Rear SuspensionSwing arm with lateral shock absorber with adjustable spring preload

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