Benelli TRK 502 Service Station Manual

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Install:
• clean the main bearing shells (6)
• connecting rod main bearing shells:
• install the connecting rod main bearing shells in the relevant
seats in the top and bottom base.
NOTE:_________________________________
Align the projections of the main bearing shells with the
slots in the top base Fig. A.
Use copper grease for assembly.
G
Sintofl on Grease
IMPORTANT NOTICE
Do not get the main bearing shells mixed up.
To achieve the correct clearance between the connecting
rod support and the bearing shells and to prevent engine
damage, the bearing shells must be installed in their origi-
nal positions.
• The crankshaft bearing shells are in different sizes, marked
with different letters and colours, as shown in the table.
MAIN BEARING SHELLS
STD COLOUR THICKNESS
A Green 1.5(0/0 + 0.003) mm
B Blue 1.5(0/0 + 0.006) mm
C Yellow 1.5(0/0 + 0.009) mm
Ø std seat A green Ø 41(0.007+0.14)
Ø std seat B blue Ø 41(0+0.007)
Ø std seat C yellow Ø 41(0.014+0.021)
Ø std seat only A Ø 41(0/+0.007)
B Ø 41(0.007+0.014)
C Ø 41(0.014+0.021)
• The support bearing layout is shown on the bottom casing,
as illustrated in Fig. C.
NOTE:_________________________________
In case of replacement of the drive shaft, it is necessary to
replace the connecting rod main bearing shells.
CRANKCASE
MAIN BEARING SHELL AND DRIVE SHAFT INSTALLATION
B
A
6
A
C
COPY - Moto GB - Grant Martland - grantmartland@motogb.co.uk

Benelli TRK 502 Specifications

General

Displacement	500 cc
Transmission	6-speed
Fuel Tank Capacity	20 liters
Seat Height	800 mm
Wet Weight	235 kg
Bore x Stroke	69 mm x 66.8 mm
Compression Ratio	11.5:1
Clutch	Wet multi-plate
Frame	Steel trellis
Wheelbase	1505 mm
Ground Clearance	190 mm
Max Power	47.6 hp (35 kW) @ 8500 rpm
Max Torque	46 Nm @ 6000 rpm
Front Suspension	50 mm upside-down fork
Front Brake	Double floating discs, 320mm, 4-piston calipers
Rear Brake	Single 260 mm disc
Fuel System	Electronic Fuel Injection (EFI)
ABS	Dual-channel ABS
Front Tire	120/70 R17
Rear Tire	160/60 R17
Engine Type	Liquid-cooled, four-stroke, parallel twin cylinder, DOHC, 4 valves per cylinder