GAS GAS EC 250 Manuals

Manuals and User Guides for GAS GAS EC 250. We have 2 GAS GAS EC 250 manuals available for free PDF download: Service Manual, Workshop Manual

GAS GAS EC 250 Service Manual (81 pages)

2002

Brand: GAS GAS | Category: Motorcycle | Size: 2.3 MB

Safety Precautions
2
Table of Contents
4
Specifications
5
General Information
7
Location of Components
7
Side Stand
10
Fuel (Gasoline)
10
Recommended Fuel
10
Engine Oil Mixing
11
Choke Button
12
Kick Start Pedal
12
Shifting Gears
13
Stopping the Motorcycle
13
Shift Pedal
13
Stopping the Engine
14
Break-In
14
Spark Plug
14
Engine Stop Button
14
Piston
15
Cylinder
15
Cylinder Head
15
Maintenance and Adjustment
16
Transmission Oil
18
Oil Level
18
Transmission Oil Type
18
Oil Change
18
Cooling System
19
Fill Plug
19
Coolant
20
Coolant Information
20
Coolant Level
21
Radiator Cap
21
Recommended Coolant
22
Water and Coolant Mixture Ratio
22
Coolant Change
22
Standard Spark Plug
24
Ignition Timing
25
Ignition Timing Adjustment
25
Air Cleaner
26
Element Removal
26
Element Cleaning
27
Throttle Cable
29
Carburetor
30
Idling Adjustment
30
Clutch
31
Exhaust System
31
Silencer Packing Change
32
Drive Chain
33
Slack Inspection
33
Slack Adjustment
33
Drive Chain, Chain Guide, Chain Slidder and Sprockets Wear Inspection
34
Chain Guide Wear
35
Chain Slider Wear
36
Sprocket Wear
36
Lubrication
36
Apply Oil
36
Handlebar
37
Handlebar Clamps
37
Brakes
38
Front Brake Lever Play
38
Rear Brake Pedal Position
38
Adjust the Brake Pedal Play
39
Disc Brake Fluid
40
Fluid Level Inspection
40
Front Reservoir
40
Brake Wear Inspection
41
Steering
41
Brake Reservoir
41
If the Steering Needs Adjustment
42
Front Fork
43
Air Pressure
43
Rebound Dampening Adjustment
43
Compression Dampening Adjustment
43
Oil Level Adjustment
46
Standard Oil Level
46
Push Rod
47
Fork Springs
48
Fork Clamp Position Adjustment
48
Fork Tube Height
48
Rear Suspension
49
Rear Shock Absorber
49
Rebound Dampening Adjuster
49
Nitrogen Gas Reservoir
50
Shock Compression Dampening Adjustment
50
Adjusting the Spring
50
Suspension Spring
51
Rear Shock Absorber Spring Replacement
51
Wheels
51
Tires
51
Spokes and Rim
52
The Bead Lock (Clamp)
52
Spoke Wrench
52
Bolt and Nut Tightening
53
Torque Table
55
Cleaning
56
Preparation for Washing
56
Where to be Careful
56
After Washing
56
General Lubrication
57
Troubleshooting
59
Carburetor Tuning
62
Symptoms of Improper Settings
62
If You Bike Is too Lean
63
Making Setting Changes
63
Main Jet
63
Jet Needle
64
Slow Jet and Air Screw
64
Clip Position
64
Test Runs
65
Correction Factors
65
Air Screw
65
Condition of Spark Plug
65
Altitude
66
Jet Needle/Air Screw Chart
66
Standard Settings
67
Suspension Tuning
67
Troubleshooting Improper Settings
69
Symptoms of the Front Fork
69
Symptoms of the Rear Shock
69
Determining the Proper Settings
69
Front and Rear Compability
70
Gearing Preconditions
72
Spare Parts
73
Preparation Check
74
Storage
76
To Put the Motorcycle Back into Use after Storage
76
Functions
77
Work Mode
77
Chronometer
77
Total Distance
77
Installation of Batteries
78
Instantaneous Speed
78
Setting the Time
79

GAS GAS EC 250 Workshop Manual (72 pages)

Brand: GAS GAS | Category: Engine | Size: 2.81 MB

Table of Contents
5
Safety
6
Maintenance
6
General Information
6
- General Tightening Torques
  7
- Engine Serial Number
  7
Table of Technical Data
8
Removing the Engine from the Chassis
9
Fitting the Engine on the Chassis
13
Dismantling the Ignition
17
Dismounting Engine
17
Service and Repair of the Engine Components
27
- Crankshaft
  28
- Connecting Rod
  29
- Piston
  29
- Piston: Opening at the End of the Ring
  30
- Piston Pin
  30
- Cylinder: Interior Measurement
  30
- Cylinder Head
  30
- Operation of the Exhaust Valve
  31
- Exhaust Valve Dismantling
  32
- Exhaust Valve Testing
  32
- Centrifugal Pinion
  32
- Centrifugal Balls
  32
- Short Exhaust Valve Shaft
  33
- Left Exhaust Valve
  33
- Exhaust Valve Bearings
  33
- Valve Control Shaft Support
  33
- Crankcase Diagram
  34
- Right Half Crankcase, Inner Side
  35
- Crankshaft Bearing
  36
- Primary Cam Bearing
  36
- Secondary Cam Bearing
  36
- Desmodromic Bearing
  36
- Centrifugal Shaft Bearing
  38
- Pinion Shaft Bearing of Water Pump
  38
- Crankshaft Seal
  38
- Starter Ratchet Plate
  38
- Left Half Crankcase, Inner Side
  39
- Centring Bushings
  39
- Left Crankcase, Outer Side
  41
- Output Shaft Seal
  42
- Selector Shaft Seal
  42
- Clutch Cover
  42
- Starter Shaft Seal
  44
- Clutch Diagram
  45
- Clutch Spring
  46
- Clutch Press
  46
- Clutch Bearing
  46
- Clutch Discs
  46
- Clutch Housing Bearings
  47
- Clutch Hub
  47
- Clutch Housing Crown
  47
- Clutch Rod
  47
- Gearshift Mechanism Diagram
  48
- Selector Shaft
  49
- Scorpion Guide Bushing
  49
- Selector Shaft Assembly
  49
- Gear Lock
  49
- Gears Diagram
  51
- Primary Cam
  52
- Secondary Cam
  52
- Starter Mechanism Diagram
  53
- Interior Pinion
  54
- Ratchet
  54
- Starter Pinion
  54
- Starter Shaft
  54
- Reed Valve Diagram
  55
- Reeds
  56
- Reed Spacer Plate
  56
- Reed Valve
  56
- Ignition Diagram
  57
- Ignition Rubber Top
  58
- Magnetic Flywheel Kokusan
  58
- Spark Plug
  58
- Assembling the Crankshaft
  59
Assembling the Engine
59
Electrical Schemas
69

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