Benelli TRK 502 Service Station Manual

5 - 73
GEAR BOX
GEAR BOX ASSEMBLY
Assemble:
1. spring (21*).
2. gear selection fork 5th/6th (25*).
3. gear selection fork 5th/6th (24*).
4. gear selection fork 1st/4th - 2nd/3rd (23*).
5. spring
NOTE:_________________________________
see the sequence in Fig. I
Check:
• the two bearing stops (33) Fig. L
If there is any warping/damage/lines/signs of wear, replace.
Check:
• The seats for the two bearing stops (33) Fig. L
If there is any warping/damage/lines/signs of wear, replace.
Assemble:
For the assembly sequence of the full input shaft (47), see the
exploded drawing at the start of the chapter.
For the assembly sequence of the full output shaft (34), see the
exploded drawing at the start of the chapter.
Position
• the full input shaft (47)
• the full input shaft (34)
NOTE:_________________________________
Make sure the grooves on the two bearings (32) and (33)
match correctly.
NOTE:_________________________________
Before assembling the two half casings, top and bottom, it
is necessary to apply sealant paste along the whole profi le
of the top casing, in order to achieve a good hold.
G
PASTE THREEBOND
Assemble:
Install the bottom casing over the top, taking care to insert
the follower (A) correctly in the segment corresponding to the
desmodronic shaft and the forks (23*-24*-25*) in their respective
seats Fig. N.
NOTE:_________________________________
Numbers marked (*) are part of the spare parts table in
Chapter 5 “Gears”.
L
33*
N
A
B
25*
23*
24*
33*
I
21*
25*
5
24*
23*
M
47
32
34
32
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