A selection of documents to assist with rebuilding your Rotax engine

Serial Numbers List of Rotax serials numbers showing engine size and type for most motors. Rotax Serial numbers
Exploded Engine Taken from the the original MX1 service manual, showing the oil injection motor in exploded view. Exploded Engine
Engine Disassembly Taken from the the original MX1 service manual, showing basic steps to engine disassembly. Engine Disassembly
Engine Assembly And then showing basic steps to engine disassembly. Engine Assembly

 

175/250 Tuning Guide A guide from 1976 on how to tune your 175/250 Rotax motor   175 250 Tuning Guide
Disc Location How to correctly locate the disc valve when assembling the engine DISCLOCN
Precombustion Drain Plug Location guide for the precombustion chamber drain plug Drain Plug
Engine Serial Number Locating the engine serial number on all Rotax motors  Engine Serial Number
Oil Drain Plug Location guide for the crankcase drain plug Oil Drain Plug
Early shaft The Rotax motors has two designs of kick start shaft – early version...... Early Shaft
Late shaft ........ and later version Late Shaft
Torque Specifications General torque settings for the 244 engine Torque Specs for 244 Motor

 

Rotax Engine Parts Manuals

A selection of Rotax parts list covering various engines

 

List 349-406GS-406MC 1980 covers the CMX 400 engine 349-406GS-406MCde1980
List 196 covers the 370cc engine 196 List 370 Engine
List 163 covers the MX2 125 engine 163 LIST
List 317 covers the MX6 125 engine LIST 317-124 MX 1980
List 75 covers the 125 and 175 TNT engine 75 LIST 124-174 TNT - 1974 (2)
List 366 covers the 240 trials engine 240cctrialSWM1982
List 370 covers the Belgian Military engine

List 178 covers the Series 1 UK Military engine

List 332 covers the Series II UK Military engine

List 370 Belgian Military Motor

LIST 178-244Mil

LIST 332 244 mil

List 138 covers 1977 Qualifier 250 engine LIST 138 244 END 1976-7 Qualifier 1 250 Engine
List 318 covers the 1980 MX6 250 engine LIST 318 - 244 1980
List 351 covers the 350 trials engine List 351 350 Trials Motors