Seite/page 9/100 Ausgabe/edition 01/2006
Table of contents of Operating Instructions
1. Design of the Rotax engine 125 MAX DD2..............................................................................73
2. Technical description of the Rotax engine, Type 125 MAX DD2..........................................73
2.1. Type of engine........................................................................................................................73
2.2. Cooling circuit.........................................................................................................................73
2.3. Balance gear...........................................................................................................................73
2.4. Ignition unit .............................................................................................................................74
2.5. Electric starter.........................................................................................................................74
2.6. Exhaust timing control ............................................................................................................74
2.7. Carburetor...............................................................................................................................74
2.8. Intake silencer ........................................................................................................................74
2.9. Exhaust system ......................................................................................................................74
2.10. Gearbox……………….. ..........................................................................................................74
2.11. Electronic shifting assistance (ESA)...................................................................................... 75
2.12. Fuel pump.............................................................................................................................. 75
2.13. Centrifugal clutch....................................................................................................................75
2.14 Overload clutch.......................................................................................................................75
3. Media for engine operation......................................................................................................75
3.1. Coolant ...................................................................................................................................75
3.2. Battery and battery charging unit............................................................................................76
3.3. Fuel.........................................................................................................................................77
4. Engine tuning............................................................................................................................78
4.1. Carburetor calibration.............................................................................................................78
4.2. Choice of gear ratio ................................................................................................................82
4.3. Exchange of the gear reduction ratio .....................................................................................85
4.4. Changing or renewal of the primary drive gear on the clutch drum........................................86
4.5. Operation of the gearbox....................................................................................................... 87
4.6. Adjustment of gearbox............................................................................................................88
5. Operating limits ....................................................................................................................89
6. Correct use of the engine ....................................................................................................89
6.1 Engine start and operation......................................................................................................89
6.2. Stopping the engine................................................................................................................91
6.3. Running-in procedure for the engine......................................................................................91
6.4. Setting of the exhaust valve timing.........................................................................................92
6.5. Maintenance schedule for engine components......................................................................94
6.6. Transport of the kart ...............................................................................................................94
6.7. Preservation of engine and equipment...................................................................................95
7. Trouble shooting.......................................................................................................................95