2012 Yamaha Motorsports Apex SE Owners Manual - Page 32
2012 Yamaha Motorsports Apex SE Manual
Page 32 highlights
Control functions Your Yamaha engine has been designed to use premium unleaded gasoline with a pump octane number [(R+M)/2] of 91 or higher, or a research octane number of 95 or higher. If the recommended fuel is not used, the engine may not perform as it should. ECS00084 G G G NOTICE G G G G Oxygenated fuels (gasohol) containing a maximum 10% of ethanol (E10) can be used, although richer jetting may be required to prevent engine damage. Consult a Yamaha dealer. Gasohol containing methanol is not recommended. Make sure that snow or ice does not enter the fuel tank when refueling. Do not use alcohol deicers or water absorbing additives with oxygenated fuel. The fuel tank should be filled with the recommended gasoline. The use of other gasoline will cause severe damage to internal engine parts, such as the valves and piston rings, as well as to the exhaust system. G Do not tamper with or attempt to open the cylinder assemblies. Do not subject the shock absorbers to an open flame or other high heat source. This may cause the unit to explode due to excessive gas pressure. Do not deform or damage the cylinders in any way. Cylinder damage will result in poor damping performance. Do not dispose of a damaged or worn out shock absorber yourself. Take the shock absorber to a Yamaha dealer for any service. TIP Use the special wrench included in the owner's tool kit to make the suspension adjustments. If the tool kit for your model does not include the special wrench, the special wrench can be obtained at a Yamaha dealer. ESU10894 Adjusting the spring preload of the front shock absorbers (RX10P / RX10PXT) EWS00720 ESU14001 Suspension The suspension can be adjusted to suit rider preference. Softer settings, for example, may provide greater rider comfort, while harder settings may allow more precise handling and control over certain types of terrain or riding conditions. If you are not familiar with suspension adjustments, have a Yamaha dealer make these adjustments. EWS00151 WARNING The spring preload of the left and right shock absorbers must be adjusted to the same setting. Uneven settings can cause poor handling and loss of stability. The spring preload can be adjusted by turning the adjusting nuts. Adjust the spring preload as follows. 1. Loosen the locknut. 2. To increase the spring preload and thereby harden the suspension, turn the adjusting nut in direction (a). To decrease the spring preload and thereby soften the suspension, turn the adjusting nut in direction (b). WARNING Read and understand the following information before handling shock absorbers that contain highly pressurized nitrogen gas. 26