User manual YAMAHA NYTRO

[. . . ] SNOWMOBILE OWNER'S MANUAL RS90NW RS90RW/RS90NRW RS90MW/RS90MSW RS90GTW RSG90W/RSG90GTW LIT-12628-02-55 8GG-28199-12 E_8gg. book Page 1 Thursday, March 16, 2006 4:23 PM A ESU00286 1- MACHINE IDENTIFICATION Identification number records A. KEY NUMBER: C CZ-01E Record the frame number, engine number (Primary ID), and key number in the spaces provided for assistance when ordering spare parts from a Yamaha dealer. 1 The frame number is the seventeen-digit number stamped on the frame of the snowmobile. Ê. ) Also, record and keep the ID numbers in a separate place in case the snowmobile is stolen. E_8gg. book Page 1 Thursday, March 16, 2006 4:23 PM ESU00011 2- INTRODUCTION Congratulations on your purchase of a Yamaha snowmobile. [. . . ] Bare pavement Other surfaces that should be avoided for the sake of drive track and slide runner life are: 1. Snow mixed with a lot of dirt and sand All of the above surfaces have one thing in common in regard to drive track and slide runners; little or no lubricating ability. Drive track and all slide rail systems require lubrication (snow or water) between the slide runners and the slide metal. In the absence of lubrication, the slide runners will rapidly wear and in severe cases, literally melt away, and the drive track will be subject to damage or failure. Also traction aids such as studs, cleats, etc. , may cause further track damage or failure. CAUTION: @ Ride on fresh snow frequently. Operating on ice or hard-packed snow will rapidly wear the slide runners. @ 7-6 E_8gg. book Page 7 Thursday, March 16, 2006 4:23 PM ESU00251 Maximizing drive track life Recommendations Track tension During initial break-in, the new drive track will tend to stretch quickly as the track settles. (See pages 8-31­8-33 for adjustment procedures. ) A loose track can slip (ratchet), derail or catch on suspension parts causing severe damage. Do not overtighten the drive track, otherwise it may increase the friction between the track and the slide runners, resulting in the rapid wear of both components. Also, this may put an excessive load on the suspension components, resulting in component failure. Marginal snow The drive track and the slide runners are lubricated and cooled by snow and water. To prevent the drive track and slide runners from overheating, avoid sustained highspeed usage in areas such as icy trails, frozen lakes and rivers that have minimal snow coverage. An overheated track will be weakened internally, which may cause failure or damage. Off-trail riding Avoid off-trail riding until there is sufficient snow coverage. It generally takes several feet of snow to provide a good overall base to properly cover debris, such as rocks, logs, etc. If snow coverage is not sufficient, stay on trails to avoid impact damage to the drive track. Studded track In general, track life will be shortened when studs are installed. Drilling stud holes into the drive track will cut the internal fibers, which weakens the track. Studs may catch on an object and pull out of the track, leaving tears and damage around the already weakened area. To minimize possible damage, consult your stud manufacturer for installation and stud pattern recommendations. Yamaha does not recommend track studding. 7-7 E_8gg. book Page 8 Thursday, March 16, 2006 4:23 PM ESU00245 Strap For RS90M/RS90MS The strap 1 should be used only by experienced operators to assist them when traverse (side-hill) riding. WARNING @ Improper use of the strap on the handlebar can result in severe injury or death. G Use the strap only as an operator grip point when needed to shift weight uphill to maintain balance during traverse (side-hill) riding. Only experienced operators should traverse slopes steep enough to require strap use. [. . . ] Fuel system Add Yamaha Fuel Stabilizer and Conditioner, or an equivalent stabilizer, to the fuel tank to help prevent fuel oxidation and gum and varnish deposits, and to inhibit corrosion in the fuel system and carburetor. In areas where oxygenated fuel (gasohol) is used, completely drain the fuel system. Engine Proper storage of the engine is essential to prevent costly rust and corrosion damage to internal engine components. This is more important in areas where oxygenated fuel (gasohol) is used, because the alcohol content in the fuel increases the chance for water to enter the engine. [. . . ]