2012 Yamaha Motorsports RS Venture Owners Manual - Page 83
2012 Yamaha Motorsports RS Venture Manual
Page 83 highlights
Periodic maintenance and adjustment 10. Install the headlight unit bolts and windshield stay bolts, and then tighten them to their specified torques. Tightening torques: Headlight unit bolt: 3.0 Nm (0.30 m·kgf, 2.2 ft·lbf) Windshield stay bolt: 14 Nm (1.4 m·kgf, 10 ft·lbf) 11. Install the top cover and the shroud. 7. Place the air filter element frame in the original position, and then install the air filter case cover by hooking the fasteners. Install the headlight unit, making sure to fit the slots on its bottom onto the projections on its stay. ESU11911 Carburetors (RST90) The carburetors are an important part of the engine and its emission control system, which require very sophisticated adjustment. Therefore, carburetor adjustments should be left to a Yamaha dealer, who has the necessary professional knowledge and experience. ESU13980 8. 1 High-altitude settings Operating at high altitude reduces the performance of a gasoline engine about 3% for every 305 m (1000 ft) of elevation. This is because there is less air as altitude increases. Less air means less oxygen available for combustion. RS90P / RS90PLT / RST90PGT: Your snowmobile utilizes an electronic fuel injection system that delivers the optimal air/fuel ratio required by the engine. Therefore, the fuel injection system does not need to be adjusted, even for operation at high altitude. RST90: Your snowmobile can be adjusted to overcome most of the problems found in highaltitude riding. Carburetor adjustments are the most important. Less air at high altitude makes the air/fuel ratio too rich, which can cause poor performance. Common problems are hard starting, bogging, and plug fouling. Proper carburetion adjustments will correct the air/fuel ratio. Be sure to have a Yamaha dealer make these adjustments. 2 1. Slot 2. Projection 9. Fit the weatherstrip on the headlight unit into the recess in the top of the air filter case cover. 1 1. Weatherstrip 77