User manual APRILIA SONIC 50 1998

[. . . ] use and maintenance aprilia part# 8202105 Sonic 50 © 1998 aprilia s. p. a. - Noale (VE) This manual is to be considered an integral part of the vehicle, which must be delivered complete with it also in case of resale. reserves the right to modify its models at any time, without prejudice to the main characteristics here described. All rights as to electronic storage, reproduction and total or partial adaptation, with any means, are reserved for all Countries. [. . . ] Insert the seat (14) of the odometer control (5) in correspondence with the antirotation pin (15). Insert the wheel pin (6) from the right side of the vehicle (travelling direction). Insert the spacer (9) between the hub and the fork left rod. Insert the washer (8), lock the rotation of the wheel pin (6) with a spanner, screw and tighten the nut (7). Wheel pin nut driving torque: 50 Nm (5 kgm). Position the odometer control (5) correctly in the appropriate seat in the wheel hub (13). use and maintenance Sonic 50 41 REAR WHEEL DISASSEMBLY Carefully read p. To unscrew the wheel nut (1), it is necessary to lock the rotation of the wheel. x Pull the rear brake lever (2) completely, then put a small piece of cardboard (3) on the grip and keep the rear brake lever pulled by holding it against the grip by means of a plastic band (4). x Unscrew and remove the wheel nut (1) and the washer. c c After reassembly, pull the rear brake lever repeatedly and check the correct functioning of the braking system. Have the driving torques, centering and balancing of the wheel checked by your aprilia Official Dealer, in order to avoid accidents that may be harmful for you and/or other people. c a Use aprilia Genuine Spare Parts only. Upon reassembly, change the wheel nut (special type). Wheel nut driving torque: 110 Nm (11 kgm). x Remove the plastic band (4) and take the piece of cardboard (3). x Withdraw the wheel. 42 use and maintenance Sonic 50 CHECKING THE BRAKE PAD WEAR Carefully read p. 35 (MAINTENANCE). c Remember: 1 mile = 1. 6 km 1 km = 0. 625 miles Check the brake pad wear after the first 500 km and successively every 2000 km. The wear of the brake pads depends on the use, on the kind of drive and on the road. The wear will be greater when the vehicle is driven on dirty or wet roads. To carry out a rapid checking of the wear of the front pads, proceed as follows: x Position the vehicle on the centre stand. x Carry out a visual checking of the friction material thickness by looking between the brake caliper and the pads. If the thickness of the friction material (even of one pad only) has reduced to about 1 mm, replace both pads. c Have the pads changed by your aprilia Official Dealer. use and maintenance Sonic 50 43 CHECKING THE SHOE WEAR Carefully read p. Check the wear of the rear brake shoes after the first 500 km and successively every 4000 km. To verify the wear of the rear brake shoes, proceed as follows: x Pull the rear brake lever (1) completely and keep it pulled. x Check the position of the rear brake shoe wear indicator (2). Position If the rear brake shoe wear indicator (2) is positioned on or beyond the lower reference tooth (4), contact an aprilia Official Dealer, who will provide for replacing the rear brake shoes. GREASING THE REAR BRAKE CAM PIN Carefully read p. If necessary, contact your aprilia Official Dealer. If you want to carry out this operation by yourself, keep to the following instructions: x a The greasing of the rear brake cam pin can be difficult or complicated for an unskilled opera- Indicator between the two reference teeth (3) and (4). Indicator on or Rear brake shoes beyond the lower worn. 44 use and maintenance Sonic 50 Wear condition Rear brake shoes within the wear limit. Grease the rear brake cam pin every 4000 km. If the vehicle is used on dusty roads, this operation must be carried out more frequently. c c Disassemble the rear wheel, see p. [. . . ] 12 V - 3 W Dashboard bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 V - 1. 2 W Low beam warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 V - 1. 2 W High beam warning light C % S K _. 12 V - 1. 2 W Direction indicators warning light . . . . . . . . . . . . . . . . . . . . [. . . ]