Kawasaki KX250F Factory Tuning And Fuel Injection to keep expert riders at the front of the pack

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Filed Under (Kawasaki) by admin on 08-02-2011

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Battery-less fuel injection system Designed specifically for motocrossers, the fuel injection system incorporates a small lightweight ECU and operates without a battery to further eliminate unnecessary weight. And of course, fuel injection eliminates the need to adjust engine settings to suit track and climate conditions. Ensuring quick starting without a battery was a prime directive when developing this fuel injection system. Using only electricity generated by the kick starter, the engine can be started with only three rotations of the crankshaft. The system delivers electricity in the following order:1) ECU, 2) fuel pump, 3) injector. With a warm engine, starting can be accomplished in a single kick. The compact, lightweight ECU, located just in front of the steering head (behind the number plate), was designed specifically for motocross use. To help cope with the shocks and vibrations of motocross riding, the fuel pump relay is built into the ECU. A 43 mm throttle body makes use of a progressive throttle link to deliver airflow in much the same way as would a FCR carburettor. Using two linked shafts, the throttle body opens more quickly after the 3/8 open position, delivering sharp response and excellent power. Lightweight throttle body is approximately half the weight of a FCR carburettor – a weight savings of about 600 g. To ensure the high-rpm engine’s demand for a high flow of fuel in a short period is met, the KX250F’s injector features larger holes than that used on the KX450F. A fine atomising injector with 4 holes disperses spray particles with a droplet size of 120 µm. Fuel flow is about 20% greater than on the KX450F. The newly designed fuel pump, located in the fuel tank, is a lightweight aluminium construction. (Fuel tank capacity is now 7.2 litres.)

Sherco Engine Teardown and Assembly Manual/ Engine Removal and Case Splitting

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Filed Under (Sherco) by admin on 25-11-2010

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Remove: a. rear fender- two bolts plus one long with washer using 4mm Allen b. fuel tank hose from petcock c. fuel tank- one short bolt and washer using 4mm Allen d. chain master link and chain from front sprocket e. kick starter- one large button head bolt and washer f. rear brake- one bolt/washer using 13mm wrench g. rear brake master cylinder- 2 button head bolts h. gear shifter- one bolt i. flywheel cover – 3 bolts j. clutch slave cylinder- two button head bolts using 4mm Allen k. clutch actuating rod by pulling it out of the case l. airbox three 4mm Allen bolts and loosening Phillips head carb hose clamp m. carburetor cap /slide assembly n. carburetor by loosening Phillips head manifold hose clamp o. spark plug cap p. spark plug q. header pipe 2 bolts into cylinder head r. silencer- 3 bolts (one with washer and nut using 10mm wrench ) s. cylinder head coolant hose clamp and hose t. rear shock upper bolt u. radiator plastic cover bolt, then lever up the radiator with screwdriver until the radiator “legs” pop out of frame retaining holes 5. Remove flywheel using flywheel puller tool, taking care not to lose the small Woodruff key by placing it inside of the magnetic flywheel for safe storage. 6. Remove ignition (3 bolts) and slide rubber grommet and ignition wiring assemblyout of the case and out of the way, taking special note of the ignition timing marks. 7. Remove front sprocket and 2 retaining circlips. 8. Remove clutch side case and its 10 bolts using 5mm Allen, being careful not to lose to lose the 2 aluminum alignment pins (dowel pins). Insert the dowel pins into their holes within the Right Crankcase.

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YAMAHA PW50 (X) OWNER'S MANUAL

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Filed Under (Yamaha) by admin on 25-11-2010

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Before operating the motorcycle: * Check the fuel tank breather hose connection. * Check the fuel tank breather hose for cracks or damage, and replace it if damaged. * Make sure that the fuel tank breather hose is not blocked, and clean it if necessary. EAU13452 2-stroke engine oil Make sure that there is sufficient 2-stroke engine oil in the oil tank. Add the recommended 2-stroke engine oil as necessary. NOTE: Make sure that the 2-stroke engine oil tank cap is properly installed. EAU40701 Fuel cock The fuel cock supplies fuel from the tank to the carburetor while filtering it al- so. The fuel cock has two positions: S (stop) With the lever in this position, fuel will not flow. Always return the lever to this position when the engine is not running. 1. Fuel tank breather hose 1 1. 2-stroke engine oil tank cap 2. Minimum level mark Recommended oil: See page 8-1. Oil quantity: 0.30 L (0.32 US qt) (0.26 Imp.qt) 2 1 1. Arrow mark pointing to “S” (stop) 1
INSTRUMENT AND CONTROL FUNCTIONS 3-6 1 2 3 4 5 6 7 8 9 O (on) With the lever in this position, fuel flows to the carburetor. Normal riding is done with the lever in this position. EAU13590 Starter (choke) lever “” Starting a cold engine requires a richer air-fuel mixture, which is supplied by the starter (choke). Move the lever in direction (a) to turn on the starter (choke). Move the lever in direction (b) to turn off the starter (choke). EAU13680 Kickstarter To start the engine, fold out the kick- starter lever, move it down lightly with your foot until the gears engage, and then push it down smoothly but force- fully

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VESPA GE 50cc specification

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Filed Under (Vespa) by admin on 11-11-2010

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Engine Single-cylinder LEADER 4 stroke Capacity 124cc Power 7.65 Kw / 8250 rpm Max Torque 9.6 Nm / 7250 rpm Cooling Forced Air Starter Electric and kick starter Transmission Automatic Twist and Go Front Suspension Single arm link with coil spring and double hydraulic shock absorber Rear Suspension Coil spring and double hydraulic shock absorber Front Brake ø 200mm disc brake Rear Brake ø 110mm drum brake Front Tyre Tubeless 110/70 – 11″ Rear Tyre Tubeless 120/70 – 10″ Running weight 114kg Length/Width/Height 1770mm / 740mm / 1140mm Fuel Tank Capacity 8.5 litres Emissions Euro 3 Accessories • Windscreen • 32 litre Top Box Kit • Chrome Front & Rear Rack • Chrome Bumper Guard • Chrome Rear Side Protection • Sticker Kits – 6 designs available • Alarm, Chain Lock, Vehicle Cover, Leg Cover Colours Bianco/Azzurro, Bianco/Rosso

Vespa GTS Super Specification

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Filed Under (Vespa) by admin on 11-11-2010

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Gts super 300 ie Gts super 125 ie s 125cc s 50cc Gts 250 ie Gts 125cc LX 125cc LX 50cc 2 stroke Engine Single-cylinder, catalised, QUASAR 4 stroke, 4 valve electronic injection Single-cylinder LEADER 4 stroke with electronic injection Single-cylinder LEADER 4 stroke Single-cylinder HI-PER 2 stroke Single-cylinder, catalised, QUASAR 4 stroke, 4 valve electronic injection Single-cylinder, catalised, LEADER 4 stroke, 4 valve Single-cylinder LEADER 4 stroke Single-cylinder HI-PER 2 stroke Capacity 278cc 124cc 124cc 50cc 249cc 124cc 124cc 49cc Power 16.4 kW / 7500 rpm 10.5 Kw / 9500 rpm 7.65 Kw / 8250 rpm 3.2 Kw / 7500 rpm 15.7 Kw / 8500 rpm 7.65 Kw / 8250 rpm 7.65 Kw / 8250 rpm 2.5 Kw / 8500 rpm Max Torque 22Nm / 6500 rpm 12 Nm / 8000rpm 9.6 Nm / 7250 rpm 4.4 Nm / 6500 rpm 20.1 Nm / 6500 rpm 9.6 Nm / 7250 rpm 9.6 Nm / 7250 rpm 3.3 Nm / 6500 rpm Cooling Liquid Liquid Forced Air Forced Air Liquid Liquid Forced Air Forced Air Starter Electric Electric Electric and kick starter Electric and kick starter Electric Electric Electric and kick starter Electric and kick starter Transmission Automatic twist and go Automatic twist and go Automatic twist and go Automatic twist and go Automatic twist and go Automatic twist and go Automatic twist and go Automatic twist and go Front Suspension Single arm, dual chamber hydraulic shock absorber with coaxial spring Single arm link with coil spring and double hydraulic shock absorber Single arm link with coil spring and double hydraulic shock absorber Single arm link with coil spring and double hydraulic shock absorber Single sided trailing link with hydraulic shock absorber Single sided trailing link with hydraulic shock absorber Single sided trailing link with hydraulic shock absorber Single sided trailing link with hydraulic shock absorber Rear Suspension Two dual effect shock absorbers with adjustable preload Coil spring and double hydraulic shock absorber Coil spring and double hydraulic shock absorber Coil spring and double hydraulic shock absorber Twin hydraulic shock absorbers with preload adjuster Twin hydraulic shock absorbers with preload adjuster Hydraulic shock absorbers with preload adjuster Hydraulic shock absorber Front Brake ø 220mm disc brake 220mm disc brake ø 200mm disc brake ø 200mm disc brake ø 220mm disc brake ø 220mm disc brake ø 200mm disc brake ø 200mm disc brake Rear Brake ø 220mm disc brake 220mm disc brake ø 110mm drum brake ø 110mm drum brake ø 220mm disc brake ø 220mm disc brake ø 110mm drum brake ø 110mm drum brake Front Tyre Tubeless 120/70-12″ Tubeless 120/70 – 12″ Tubeless 110/70 – 11″ Tubeless 110/70 – 11″ Tubeless 120/70-12″ Tubeless 120/70-12″ Tubeless 110/70 – 11″ Tubeless 110/70-11″ Rear Tyre Tubeless 130/70-12″ Tubeless 130/70 – 12″ Tubeless 120/70 – 10″ Tubeless 120/70 – 10″ Tubeless 130/70-12″ Tubeless 130/70-12″ Tubeless 120/70 – 10″ Tubeless 120/70-10″ Running weight 158kg 158kg 114kg 96kg 151kg 145kg 114kg 96kg Length/Width/Height 2230mm / 755mm / 1170mm 1930mm / 755mm / 1930mm 1770mm / 740mm / 1140mm 1755mm / 740mm / 1140mm 1930mm / 755mm / 1170 mm 1940mm / 755mm / 1180 mm 1770mm / 740mm / 1140mm 1755mm / 740mm / 1140mm Fuel Tank Capacity 9 litres 9 litres 8.5 litres 8.5 litres 9.2 litres 10 litres 8.5 litres 8.5 litres Emmissions Euro 3 Euro 3 Euro 3 Euro 2 Euro 3 Euro 3 Euro 3 Euro 2 Colours Rosso Dragon Nero Lucido Montebianco Rosso Dragon Nero Lucido Montebianco Taormina Nero Lucido Montebianco Taormina Nero Lucido Montebianco Marrone Terra Di Toscana Bronzo Perseo Nero Vulcano Blu Midnight

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Scooter VESPA G.S. MAIN SPECIFICATION

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Filed Under (Vespa) by admin on 11-11-2010

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Engine: Single cylinder, two-stroke, with reverse flow scavenge and high volumetric efficiency. Flat cast iron cylinder and pressure die ; cast, special aluminium alloy cylinder head. High strength, steel con. rod connected, trough a row of rollers, with the crankshaft which is built of three parts. Bore 57 min. (2.24°) Stroke 57 mm. (2.24″) Displacement 145.55 cc. (8.82 cu in.) Compression ratio 7 to 1 Starting: By means of kick-starter, right hand side of scooter. Transmission: Directly from engine to rear wheel through clutch, cush drive and gear box. . Fig. 02 – VESPA controls 1 – Fuel cock 2 – Throttle control grip 3 – Clutch control lever 4 – Front brake lever 5 – Horn 6 – Horn button 7 – Dimmer switch 8 – Gear change twistgrip 9 – Contact key 10 – Rear broke pedal 11 -Kick- starter 12 – Choke ro Gear change: 4 – speed drive with mesh gears in oil bath. Its adjustable twistgrip control is coupled with that of the clutch, on left hand side of handlebars (fig. 2). Clutch: Wet type; steel plates with cork inserts. Control by lever, on left hand side of handlebars, and adjustable cable. Ignition: By 6-pole flywheel magneto. Separated ignition coil with primary circuit fed by another coil inside the flywheel magneto. Lighting and horn: By flywheel magneto, with a. c. directly feeding head lamp (double filament bulb, 6 v, 25/25 w), and tail lamp, 6 v, 5w, when the switch is in position “2″. The town light (6 v, 3 w), tail lamp, STOP light and horn are fed by the 12 Ah battery, which is constantly re-charged through a metallic rectifier and impedance, when the key of the switch is in either position “0″ or “1″ (see Fig. 3). Frame: of special, thick steel sheet, pressed and spot welded, with streamlined monocoque type structure. Suspension: Front: stub axle and swinging hub with variable rate coil spring and double action hydraulic damper. Rear: swinging bracket for engine and wheel, with variable rate coil sprang and co-axial double action hydraulic damper.