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Mongoose/KXR 250
KYMCO Mongoose/KXR 250 User Manual
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7. CYLINDER HEAD/VALVES
7-11
Mongoose/KXR 250
Measure compressed force (valve spring)
and installed length.
Replace if out of specification.
Service limits
:
IN : 10.20
~
11.84kg(at
18.05mm)
EX : 19.14
~
22.02kg(at 21.5mm)
Measure the spring tilt.
Replace if out of specification.
Service limits
:
I
N : 0.8m
m
EX : 1.07m
m
96
98
Table of Contents
Preface
1
Table of Contents
1
General Information
2
Serial Number
3
General Information
3
Specifications
4
Service Precautions
5
Torque Values
13
Special Tools
14
Lubrication Points
15
Cable & Harness Routing
18
Wiring Diagram
21
Troubleshooting
23
2. Frame Covers/Exhaust Muffler
29
Frame Covers/Exhaust Muffler
29
Frame Covers/Exhaust Muffler
30
Service Information
31
Troubleshooting
31
Frame Covers
32
Exhaust Muffler Removal
36
3. Inspection/Adjustment
37
Inspection/Adjustment
37
Inspection/Adjustment
38
Service Information
38
Maintenance Schedule
39
Fuel Line/Throttle Operation/Air Cleaner
40
Throttle Operation
40
Air Filter for Drive Belt/ Spark Plug
43
Valve Clearance/Carburetor Idle Speed
44
Ignition Timing/Cylinder Compression
45
Engine Oil
46
Transmission Oil Replacement
47
Drive Belt/Brake Pads/Brake Fluid Inspection
48
Headlight Aim/ Steering System Inspection
49
Toe-In Adjustment
50
Wheels/Tires
51
Drive Chain Slack Adjustment
53
Drive Select Lever Adjustment
55
Cable Inspection and Lubrication
56
Rear Suspension Lubrication
56
Cooling System
57
4. Lubrication System
58
Lubrication System
58
Lubrication System
59
Service Information
60
Troubleshooting
60
Engine Oil/Oil Filter
61
Oil Pump
61
5 Fuel System
65
Fuel System
66
Service Information
67
Troubleshooting
68
Fuel Tank
69
Fuel Valve Removal
69
Throttle Valve
72
Carburetor
73
Air Cleaner
77
Engine Removal
78
Cylinder Head/Valves 7
86
Cylinder Head/Valves
87
Service Information
88
Troubleshooting
89
Camshaft/Camshaft Holder
90
Cylinder Head Cover
90
Cylinder Head
95
Cylinder/Piston
99
9.Drive and Driven Pulleys
108
Drive and Driven Pulleys
108
Service Information
110
Troubleshooting
110
Left Crankcase Cover
111
Drive Pulley
112
Clutch/Driven Pulley
115
Final Reduction/Transmission System
122
Final Reduction/Transmission System
124
Service Information
124
Troubleshooting
124
Final Reduction/Transmission System
125
Transmission Case Cover
125
Transmission
127
Crankcase/Crankshaft/Balance Shaft
135
12. Cooling System
142
Cooling System
142
Cooling System Testing
143
Service Information
143
Troubleshooting
143
Radiator
146
Water Pump
148
Thermosensor
152
Thermostat
153
13. Brake System
155
Brake System
155
Brake System
156
Service Information
157
Troubleshooting
157
Front Brake Fluid Change/Air Bleed
159
Brake Master Cylinder
160
Front Brake Caliper
163
Rear Hydraulic Brake
166
Rear Brake Master Cylinder (Rear Brake Pedal)
168
Rear Brake Caliper
171
Front Suspension\Steering System Front Wheel/
174
Front Wheel/Front Suspension/Steering System
174
Front Wheel/ Front Suspension\Steering System
175
Front Wheel
176
Service Information
176
Steering System
176
Troubleshooting
176
Front Wheel Hub
178
Front Suspension
182
Tie-Rod
186
Handlebar
188
Steering Column
190
. Rear Wheel/Axle/Suspension 15
193
Rear Wheel/Axle/Suspension
193
Rear Wheel/Axle/Suspension
194
Service Information
195
Troubleshooting
195
Rear Wheel/Axle/Axle Hub
196
Rear Fork/Swim Arm/Shock Absorber
205
Batter/Charging System/
211
Generator
211
Batter/Charging System
212
Generator
212
Service Information
213
Troubleshooting
214
Battery Removal
215
Charging System
217
Regulator/Rectifier
218
Ignition System
222
Service Information
223
Troubleshooting
224
Ignition Unit /Change Gear Control Inspection
225
Ignition Coil Inspection
227
Ignition System
228
Pulser Coil
228
Starting System
229
Starting System
231
Service Information
231
Troubleshooting
231
Starter Motor
232
Starter Relay
235
Starter Clutch
236
Bulbsremoval/Instrument/ Horn
238
5
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KYMCO Mongoose/KXR 250 Specifications
General
Brand
KYMCO
Model
Mongoose/KXR 250
Category
Offroad Vehicle
Language
English
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