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SKEE-HORSE 25-201R
Johnson SKEE-HORSE 25-201R User Manual
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SKEE-HORSE
SERVICE
MANUAL
o
30
HORSEPOWER
MODELS
25-201R
25-201RA
25-201RSA
11
·
70
PART
NO.
261894
LITHO
U.S.A.
©
OUTBOARD
MARINE
CORPORATION
1970
ALL
RIGHTS
RESERVED
2
Table of Contents
Section 3 General Snowmobile Information
11
Table of Contents
11
Carburetion
12
Ignition
13
Power Flow
14
Primary Drive
14
Neutral Lockout
15
Secondary Drive
15
Section 4 Trouble Shooting
17
Compression
18
Description
18
Spark Plugs
19
Trouble Shooting Guide
20
Trouble Shooting Procedures
20
Section 5 Tune-Up Procedures
27
Description
28
Factors Affecting Performance
28
Fuel System
28
Ignition System
28
Compression
28
NEW Velllcle DELIVERY
29
Tune-Up Procedures
29
Carburetor Adjustments
31
Lllgh SPEED NEEDLE VALVE
31
Low Speed Needle Valve
32
Idle Adjustment Screw
32
Compression Release Valve Adjustment
31
Ignition Timing Adjustment
31
Spark Plugs
32
Section 7 Ignition and Electrical Systems
41
Description
42
Test Equipment
42
Magneto
43
Removal
43
Testing
45
Flywheel
45
Breaker Points
45
Condenser
45
Magneto Drive Coils
46
Ignition Coils
46
High Tension Leads
47
Reassembly
47
Spark Plugs
48
Battery
49
Description
49
Specifications
50
Installation
50
Battery Servicing
50
Battery Care
51
Battery Testing
51
Battery Charging
52
Slow Charging
52
Starter System
52
Description
52
Maintenance
53
Starter System T '3Ting
53
Starter Circuit Testing
53
Starter Motor Testing
54
Inspection of Starter Motor
55
Belt Tension
56
Alternator
56
Trouble Shooting
56
Checking Rectifier Diodes
56
Alternator Coil Replacement
57
A Section Manual Starter
59
Description
60
Removal and Disassembly
60
Cleaning, Inspection, and Repair
61
Reassembly
61
Starter Rope Replacement
62
Sections Engine
63
Description
64
Disassembly
65
Cleaning, Inspection, and Repair
68
Cylinders
68
Gaskets and Gasket Surfaces
68
Pistons
69
Bearings
69
Assembly of Engine
70
Pistons, Wrist Pins, and Connecting Rods
70
Piston Rings
71
Crankshaft
71
Installation
72
Break-In
74
Section 10 Drive Train
75
Description
76
Primary Drive
76
Cleaning, Inspection and Repair
76
Reassembly
77
Drive Chain
78
Lubrication
78
Adjustment
78
Removal and Installation
78
Repair
79
Brake
79
Description
79
Adjustment
79
Removal
79
Brake Cable and Cam Assembly
79
Secondary Drive
80
Disassembly
80
Cleaning and Inspection
80
Reassembly
80
Reversing Transmission Description
82
Lubrication
82
Removal and Disassembly
83
Cleaning, Inspection and Repair
83
Assembly and Adjustment
83
Adjustment
84
Description
84
Shift Control Rod Adjustment
84
Engine Lubrication
94
Fuels and Lubricants
94
Fuel Blending
95
Lubrication Recommendations
95
Removal from Storage
97
Reversing Transmission Linkage
84
4
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Johnson SKEE-HORSE 25-201R Specifications
General
Brand
Johnson
Model
SKEE-HORSE 25-201R
Category
Snowmobiles
Language
English
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