
Table of contents of Operators Manual
1. Design of the ROTAX engine 125 MAX DD2 evo............................................................... 77
2. Technical description of the ROTAX engine, Type 125 MAX DD2 evo ............................ 77
2.1. Type of engine ....................................................................................................... 77
2.2. Cooling circuit ........................................................................................................ 77
2.3. Balance gear.......................................................................................................... 77
2.4. Ignition unit............................................................................................................. 77
2.5. Electric starter ........................................................................................................ 78
2.6. Exhaust timing control............................................................................................ 78
2.7. Carburetor.............................................................................................................. 78
2.8. Intake silencer........................................................................................................ 78
2.9. Exhaust system...................................................................................................... 78
2.10. Gear box ................................................................................................................ 78
2.11. Electronic Shifting Assistant (ESA)......................................................................... 79
2.12. Fuel pump.............................................................................................................. 79
2.13. Centrifugal clutch ................................................................................................... 79
2.14. Overload clutch ...................................................................................................... 79
3. Media for engine operation................................................................................................. 79
3.1. Coolant .................................................................................................................. 79
3.2. Battery and battery charging unit............................................................................ 79
3.3. Fuel........................................................................................................................ 81
4. Engine tuning ...................................................................................................................... 82
4.1. Carburetor calibration............................................................................................. 82
4.2. Choice of gear ratio................................................................................................ 85
4.3. Exchange of gear reduction ratio............................................................................ 87
4.4. Operation of the gear box....................................................................................... 88
4.5. Adjustment of gear shifting..................................................................................... 89
5. Operating limits................................................................................................................... 90
6. Engine start and operation................................................................................................. 90
6.1. Engine start and operation ..................................................................................... 90
6.2. Stopping the engine ............................................................................................... 91
6.3. Running-in procedure for the engine ...................................................................... 92
6.4. Setting of the exhaust valve timing......................................................................... 93
6.5. Maintenance schedule for engine components....................................................... 95
7. Transport of the kart ........................................................................................................... 96
8. Preservation of engine and equipment.............................................................................. 96
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