User manual APRILIA RS 250 1997

[. . . ] RS 250 use+maintenancebook aprilia part# 8102854 © 1997 aprilia s. p. a. - Noale (VE) 3!&%49 7!2. ). '3 The following precautionary warnings are used throughout this manual in order to convey the following messages: Safety warning. When you find this symbol on the vehicle or in the manual, be careful to the potential risk of personal injury. Non-compliance with the indications given in the messages preceded by this symbol may result in grave risks for your and other people's safety and for the vehicle! 4%#(. )#!, ). &/2-!4)/. [. . . ] If the mixer oil reserve warning light LED "j" comes on while the engine is running, this means that the mixer oil reserve is being used; in this case, top up the mixer oil tank, see p. 33 (MIXER OIL TANK). a Shift the gears one by one; the simultaneous downshifting of more than one gear may make you exceed the maximum rpm (red line). Before and during the downshifting, release the throttle grip and decelerate, in order to avoid the "red line". To shift down, proceed as follows: Release the throttle grip (2) (Pos. If necessary, pull the brake levers moderately and decrease the speed of the vehicle. N Pull the clutch lever (3) and lower the shifting lever (4) to shift down. N Release the clutch lever and accelerate moderately. N N a To engage the second gear: a N Proceed quickly. Never ride the vehicle at too low rpm. The downshifting should be carried out in the following situations: N When riding downhill or when braking, in order to increase the braking action by using the compression of the engine. N When riding uphill, if the gear engaged is not suitable to the speed (high gear, moderate speed) and the engine rpm decreases. Release the throttle grip (2) (Pos. Release the clutch lever (3) and accelerate. use and maintenance RS 250 43 If the writing "///" appears on the right side of the multifunction display, stop the engine and check the coolant level, see p. 36 (COOLANT). a Avoid opening and closing the throttle grip repeatedly and continuously, so that you do not accidentally lose control of the vehicle. If you have to brake, close the throttle and put on both brakes in order to obtain uniform deceleration, properly exerting pressure on the braking parts. By putting on the front brake only or the rear brake only, you reduce the braking force considerably, thus running the risk of locking one wheel and consequently losing grip. If you stop uphill, decelerate completely and use the brakes only to keep the vehicle steady. The use of the engine to keep the vehicle steady may cause the overheating of the clutch. Before beginning to turn, slow down or brake driving at moderate and constant speed or accelerating slightly; avoid braking at the last moment: it would be very easy to skid. If the brakes are operated continuously on downhill stretches, the friction surfaces may overheat, thus reducing the braking efficiency. Exploit the engine compression and shift down by putting on both brakes intermittently. When visibility is insufficient, switch on the low beam even during the day, in order to make your vehicle more visible. In case of wet ground or scarce wheel grip (snow, ice, mud, etc. ), drive slowly, avoiding sudden brakings or manoeuvres that could make you lose grip and fall down. a Pay the utmost attention to any obstacle or variation of the ground. Uneven roads, rails, manhole covers, indications painted on the road surface, building site metal plates become rather slippery by rain. For this reason all these obstacles have to be carefully avoided, driving smoothly and bending the vehicle as little as possible. Always use the turn indicators in time when you intend to change lane or direction, avoiding sharp and dangerous movements. [. . . ] height (front part of the fairing included) Seat height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 use and maintenance RS 250 1975 mm 690 mm 1180 mm 810 mm 1360 mm 135 mm 167 kg 90°V two-cylinder with laminar suction and valve on the exhaust port. 2 249. 25 cm# 56 mm / 50. 6 mm 12 ± 0. 7 : 1 With pedal 1300 ± 100 rpm multidisc in oil bath, with manual control on the left side of the handlebar. liquid-cooled 3. 6 L (mechanical reserve) 700 cm# 1. 9 L (50% water + 50% antifreeze with ethylene glycol) 0. 3 L 2 431 cm# (for each rod) 160 kg 1. 6 L 19. 5 L ENGINE TRANSMISSION GEAR RATIOS Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ratio 1ª 2ª 3ª 4ª 5ª 6ª Primary 23/59 = 1 : 2. 565 Secondary 11 / 27 = 1: 2. 454 16 / 26 = 1: 1. 625 17 / 21 = 1: 1. 235 22 / 23 = 1: 1. 045 24 / 22 = 1: 0. 916 25 / 21 = 1: 0. 840 mechanical, 6 gears with foot control on the left side of the engine Final ratio Total ratio 14 / 42 = 1 : 3. 00 (14/43 = 1 : 3. 071)1 : 18. 889 1 : 12. 505 1 : 9. 506 1 : 8. 045 1 : 7. 054 1 : 6. 464 (1 : 19. 330) (1 : 12. 803) (1 : 9. 728) (1 : 8. 231) (1 : 7. 215) (1 : 6. 617) CARBURETTORS FUEL SUPPLY FRAME Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]