Yamaha JT1 Series Service Manual page 6

3 - 20 Air Cleaner ................................................................................................................ 44
CHAPTER 4 CHASSIS .................................................................................................................... 46
4- 1 Front Wheel .............................................................................................................. 46
4- 2 Rear Wheel ............................................................................................................... 49
4- 3 Rear Wheel Sprocket ............................................................................................... 53
4 - 4 Tires and Tubes ........................................................................................................ 54
4- 5 Front Forks ............................................................................................................... 54
4- 6 Rear Shocks ............................................................................................................. 57
4- 7 Gas Tank .................................................................................................................. 58
4 - 8 Rear Swing Arm ...................................................................................................... 58
4 - 9 Steering Head ........................................................................................................... 60
4- 10 Oil Tank and Tool Box............................................................................................ 61
4 - 11 Frame ........................................................................................................................ 61
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4 - 12 Handlebars ................................................................................................................ 61
4-13Miscellaneous ............................................................................................................ 61
CHAPTER 5 ELECTRICAL SYSTEM ............................................................................................... 62
5- 1 Electrical Equipment..................................................................................................... 62
5- 2 List of Electrical Components ..................................................................................... 62
5- 3 Ignition System-Function and Service .......................................................................... 63
5- 4 Ignition Timing .. ......................................................................................................... 63
5-
5 Ignition Coil ..... ........................................................................................................... 64
5- 6 Condenser .. . . ... . .. .. .. .. . . . ... ... ... ... ... ...... ... .... ... ... ... ... ... ... .. . ... .. ... . ... . .. .. . . . . ..... ... .. . . .. .... ... .. ... . . 64
5-
7 Charging System........................................................................................................... 65
5· 8 Battery ............................................................................ •···· • •·· • • •· • •··· • • • •·· •··· •· •····· · · · ·· ····· · · 67
5-
9 Checking the main Switch ............................................................................................. 69
5- 10 Spark Plug ....................................................................................................................... 69
APPENDICES .................................................................................................................. 72
I Parts and Service Bulletins.................................................................................. 72
II Parts Illustrations.............................................................................................. 82
Ill Maintenance and Lubrication Intervals.................................................................... 86
IV Pre-operation Check List.................................................................................... 87
Torque Values for Common Components................................................................... 87
V Cleaning and Storage Hints .............................................. ................................. .. 88
VI Metric Inch Conversion Tables.............................................................................. 89