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Table of Contents
MODEL
CLUTCH
Thickness of friction disks
Quantity
<Friction disk wear limit>
Thickness of the separators
Quantity
<Distortion limit>
Free length of clutch spring
Quantity
Minimum length
Clutch freeing method
Actioning rod warp limit
GEAR SELECTOR
Type
CARBURETTOR
Type
ID mark
Main jet
Main pneumatic jet
Jet needle
Needle jet
Pilot outlet
Pilot jet
Bypass1
Pilot screw (turns)
Valve seat size
Choke jet 1
Choke jet 2
Float height
Chamber level
Engine idle speed
LUBRICATION SYSTEM
Colour code
Minimum run
Maximum run
Minimum output
Maximum output
Pulley adjustment mark
REED VALVE
Valve thickness
Stop plate heigh
Valve bend limit
14
GPR 125 Racing
2.9 ÷ 3.1 mm
7 parts
2.7 mm
1.05 ÷ 1.35 mm
6 parts
0.05 mm
34.5 mm
5 parts
32 mm
Internal by lever system
<0.15 mm>
Selector and guide bar
TM 28-92/1
1 DO
#210
0.7
5J40 – 2
Q2M (#939)
0.6
#17.5
1.6
¼
2.8
#40
#60
15.5 ÷ 16.5 mm
1.5 ÷ 2.5 mm
1250 ÷ 1450 rpm
Dark blue
0.15 ÷ 0.20 mm
1.85 ÷ 2.05 mm
0.38 ÷ 0.50 cm3
4.65 ÷ 5.15 cm3
Self-adjusting
0.5 mm
8.8 mm
0.5 mm

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Table of Contents

   Also See for Derbi GPR 125 Racing

This manual is also suitable for:

Gpr 125 racing

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