Benelli TNT125 Service Manual

Technical Parameters
Table of standard value and allowable limit of benchmark items Unit: mm
Item Standard value Use limit
Cylinder
Inner diameter 54~54.01 54.11
Cylindricity 0.005 0.05
Roundness 0.004 0.05
Planeness 0.02 0.05
Piston and
piston ring
Outer diameter of piston (measurement
point)
53.975~53.985
(7mm at the bottom of piston
skirt)
53.9
Inner diameter of piston pin hole
14.002-14.008
14.04
Outer diameter of piston pin 13.994-13.997 13.96
Clearance between piston and piston pin 0.005-0.014 0.07
Clearance
between piston
ring and ring
groove:
First ring 0.02-0.06 0.09
Second ring 0.02-0.06 0.09
Piston ring joint
clearance
First ring 0.10-0.25 0.5
Second ring 0.3-0.45 0.8
Oil ring 0.20-0.60
＿
Connecting
rod small
end
Inner diameter of connecting rod small
end
14.010-14.018 14.05
Clearance between connecting rod and
piston pin
0.013-0.024 0.10
Crankshaft
components
Lateral clearance of big end of
connecting rod
0.1-0.35 0.55
Radial clearance of big end of
connecting rod
0.006-0.018 0.05
Run-out 0.03 0.1
Torque Value
Mounting bolt of secondary
inlet duct of cylinder block
6~8N•m
Crankshaft nut 70~80N•m
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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