This comprehensive repair manual provides detailed instructions and technical specifications for a wide range of Mercury snowmobiles manufactured between 1974 and 1976. Featuring models like the 400 Max, 440 S/R, Hurricane Mark II, 340 S/R, 340 S/T F/A, 440 M/X, 440 S/R Elec, 440 S/R, 440 S/T F/A, 440 T/T, Snow Twister 250, Snow Twister 340, Snow Twister 440, Trail Twister 340, and Trail Twister 440, this manual is an essential resource for any owner or mechanic.

The manual covers a wide array of topics including general information, routine maintenance procedures, engine removal and installation, fuel system, lubrication and cooling system, engine specifications, transmission, drive chain and sprockets, steering system, shocks, bodywork, intake and exhaust systems, electrical systems, and advanced troubleshooting techniques. Whether you are performing routine maintenance, troubleshooting a problem, or undertaking a major repair, this manual provides the information you need to get the job done right.