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Manuals and User Guides for Yamaha IT Series. We have
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Yamaha IT Series manual available for free PDF download: Race Preparation And Tuning Manual
Yamaha IT Series Race Preparation And Tuning Manual (63 pages)
Brand:
Yamaha
| Category:
Motorcycle
| Size: 2 MB
Table of Contents
Index
4
Race Preparation
8
Fuel
8
Engine Mixing Oil
8
Recommended Oil
8
Premix Gas Chart
9
Transmission Oil
10
Coolant
10
Air Filter Service
11
Break-In
13
Securing Handlebar
13
Rear Sprocket Bolt Tightening
14
Spokes
14
Drive Chain
15
Lubrication
16
Preoperation Checks
18
Inspection and Maintenance
18
Cooling Water
18
Gear Oil
18
Front Forks and Rear Shock
19
Cables
19
Muffler
19
Sprocket
19
Carburetor Tuning
20
Some Basics
20
Symptoms of Improper Settings
23
Making Setting Changes
24
Slide Valve Carburetor
25
Main Jet
25
Jet Needle and Needle Jet
26
Slide
27
Pilot Jet and Pilot Air Screw
28
Test Runs
29
Examples
30
Spark Plug
31
Spark Plug Reading
31
Spark Gap
32
Tightening Torque
33
Heat Range
33
Spark Plug Heat Range Comparison
34
Gearing
36
Selection of the Secondary Reduction Ratio
36
Preconditions
36
Suspension Tuning
38
Front Fork
40
Fork Oil Level
40
When the Oil Level Is Raised
40
When the Oil Level Is Lowered
40
Oil Level Adjustment
41
Fork Oil Weight
42
Fork Spring
43
Air Pressure
43
Fork Clamp Position
45
Rear Shock
46
Spring Preload
46
Spring Replacement
47
Rebound Damping
47
Compression Damping
49
Gas Pressure
50
Tire Pressure Adjustment
51
Troubleshooting
52
Improper Settings
52
Symptoms of the Front Forks
52
Too Hard
52
Symptoms of the Rear Shock
53
Determining the Proper Settings
53
Intermediate Rider Weight
53
Readjustment of the Suspension
54
Ground Surface
54
Riding Experience
54
Rider's Weight
54
Front and Rear Compatibility
55
General Symptoms and Remedy
56
Setting Record Table
59
Normal Condition
61
Rich
61
Oil Fouled
61
Overheating
62
Deposits
62
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