User manual YAMAHA CYGNUS125-2007

[. . . ] OWNER'S MANUAL XC125 4P9-F8199-E0 1 2 3 4 5 6 7 8 9 INTRODUCTION EAU10110 Welcome to the Yamaha world of motorcycling!As the owner of the CYGNUS X, you are benefiting from Yamaha's vast experience and newest technology regarding the design and manufacture of high-quality products, which have earned Yamaha a reputation for dependability. Please take the time to read this manual thoroughly, so as to enjoy all advantages of your CYGNUS X. The owner's manual does not only instruct you in how to operate, inspect and maintain your scooter, but also in how to safeguard yourself and others from trouble and injury. [. . . ] Refer to this section each time a panel needs to be removed and installed. panel off. 1 2(8) 1 2(2) 2 ZAUM00** 3 4 5 6 7 8 9 ZAUM00** 4 1 2 1. Screw ZAUM00** 3 To install the panel Place the panel in the original position, and then install the screws. Panel B To remove the panel Remove the screws, and then take the panel off. EAUT1882 To install the panel Place the panel in the original position, and then install the screws. Panel C To remove the panel Remove the screws, and then take the panel off. 1. Panel D Panel A To remove the panel Remove the screws, and then take the 6-6 PERIODIC MAINTENANCE AND MINOR REPAIR EAUT1830 1 1 2 3 4 5 6 7 8 9 ZAUM00** 1 2(4) 2 Checking the spark plug The spark plug is an important engine component, which is easy to check. Since heat and deposits will cause any spark plug to slowly erode, the spark plug should be removed and checked in accordance with the periodic maintenance and lubrication chart. In addition, the condition of the spark plug can reveal the condition of the engine. Remove the spark plug as shown, with the spark plug wrench included in the owner's tool kit. ZAUM00** 1. Screw To install the panel Place the panel in the original position, and then install the screws. Remove the quick fasteners by pushing in the center pin, and then take the panel off. To install the panel Place the panel in the original position, and then install quick fasteners. 1 ZAUM00** 1. Spark plug wrench 6-7 PERIODIC MAINTENANCE AND MINOR REPAIR To check the spark plug 1. Check that the porcelain insulator around the center electrode of the spark plug is a medium-to-light tan (the ideal color when the vehicle is ridden normally). NOTE: If the spark plug shows a distinctly different color, the engine could be defective. Do not attempt to diagnose such problems yourself. Instead, have a Yamaha dealer check the vehicle. Check the spark plug for electrode erosion and excessive carbon or other deposits, and replace it if necessary. Specified spark plug: NGK/CR7E of the correct torque is 1/4­1/2 turn past finger tight. However, the spark plug should be tightened to the specified torque as soon as possible. Install the panel. 1 ZAUM00** 2 3 4 5 6 7 8 9 1. Spark plug gap Spark plug gap: 0. 7­0. 8 mm (0. 028­0. 031 in) 2. Clean the surface of the spark plug gasket and its mating surface, and then wipe off any grime from the spark plug threads. Install the spark plug with the spark plug wrench, and then tighten it to the specified torque. Tightening torque: Spark plug: 13 Nm (1. 3 m·kgf, 9. 4 ft·lbf) To install the spark plug 1. [. . . ] 6-1 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28 Troubleshooting chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29 Turn signal indicator light . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Turn signal light bulb (front), replacing . . . . [. . . ]