2005 Ski-Doo Racing Handbook, Page 408Get this manual
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SECTION 102004 MX 440
Rotax 453 Premix 65.00 65.80 436.70 64.88 15.5 Semi-trapez YES 420 924 810 YES 65007250 420 239 948 Gray 1.00 38.00 COOLING kPa PSI Liquid 42 90 ENGINE mm in mm in m