Contents
General Cleanliness .......................................................... 40
Fuel ...................................................................................................... 41
Refueling Procedure .......................................................... 42
Electric Start Wiring Diagram ........................................................... 43
Engine Oil ........................................................................................... 44
Carburetor Adjustment & Tuning Tips ............................................ 48
Air Cleaner .......................................................................................... 53
Cleaning ........................................................................... 54
Clutch System ..................................................................................... 55
rottle ............................................................................................... 56
Valve Clearance ................................................................................... 59
Engine Idle Speed ............................................................................... 61
Component Inspection ....................................................................... 62
Spark Plug ........................................................................ 62
Suspension ........................................................................ 65
Brakes ................................................................................ 67
Wheels .............................................................................. 70
Tires & Tubes .................................................................... 74
Training Wheel .................................................................. 78
Drive Chain ...................................................................... 79
Battery .............................................................................. 84
Appearance Care ................................................................................ 87
Preparing for a Ride ........................................................................... 89
Transporting your umpstar ........................................................... 90
Storing your umpstar ..................................................................... 91
Troubleshooting ................................................................................ 93
You & the Environment ...................................................................... 96
Taking Care of the Unexpected .......................................................... 97
Vehicle Identication ......................................................................... 101
Oxygenated Fuels ............................................................................... 102
Specication ....................................................................................... 103
Spare Part Catalogue ......................................................................... 104
Torque Settings ................................................................................... 119
Parts Finder ....................................................................................... 124
Warranty ............................................................................................ 125
Disclaimer ......................................................................................... 126
Title Ownership ................................................................................ 128