2011 Yamaha Motorsports FX Nytro XTX Owners Manual - Page 57
2011 Yamaha Motorsports FX Nytro XTX Manual
Page 57 highlights
Periodic maintenance and adjustment 1 Left and right side covers To remove a side cover 1. Remove the shroud. (See above for removal procedures.) 2. Loosen the fasteners, and then remove the side cover as shown. 1. Left side cover 2. 3. Tighten the fasteners. Install the shroud. ECS00372 NOTICE G 2 1 1 G Make sure that all cables, hoses and leads are routed properly before installing the shroud and covers. When installing the shroud and covers, be sure to tighten the fasteners securely. ESU11784 Checking the spark plugs 1 1. Fastener 2. Left side cover To install a side cover 1. Insert the projection on the rear of the side cover into the slot in the fuel tank side cover and insert the projections on the front of the side cover into the slots in the lower cover. The spark plugs are important engine components and are easy to inspect. The condition of the spark plugs can indicate the condition of the engine. Check the coloration on the white porcelain insulator around the center electrode. The ideal coloration at this point is a medium-tolight tan color for a snowmobile that is being ridden normally. If any spark plug shows a distinctly different color, there could be something wrong with the engine. For example, a very white center electrode porcelain color could indicate an intake track air leak or carburetion problem for that cylinder. Do not attempt to diagnose such problems yourself. Instead, take the snowmobile to a Yamaha dealer for inspection and possible repairs. 51