2007 HONDA CRF450X Specifications / PRESS INFORMATION

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Filed Under (Honda) by admin on 18-02-2011

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Specifications CRF450X ED-type Engine Type Liquid-cooled 4-stroke 4-valve SOHC single Displacement 449cm³ Bore x Stroke 96 x 62mm Compression Ratio 12 : 1 Max. Power Output 36.2kW / 7,500min-1 (95/1/EC) Max. Torque 46.8Nm / 7,000min-1 (95/1/EC) Fuel System Carburation 40mm Keihin FCR flat-slide carburettor with throttle position sensor (TPS) Fuel Tank Capacity 8.3 litres Electrical System Ignition System Computer-controlled digital capacitor discharge with electronic advance and lighting coil Starter Electric / Primary kick Drivetrain Transmission 5-speed Primary Reduction 2.739 (63/23) Gear Ratio 1 2.231 (29/13) 2 1.625 (26/16) 3 1.235 (21/17) 4 1.000 (19/19) 5 0.826 (19/23) Final Reduction 3.923 (51/13) Final Drive #520 T-ring sealed chain Frame Type Semi-double cradle; aluminium twin-spar Chassis Dimensions (LxWxH) 2,176 x 825 x 1,254mm Wheelbase 1,478mm Caster Angle 27° 17′ Trail 112.8mm Seat Height 963mm Ground Clearance 348mm Dry Weight 115.7kg Kerb Weight 122.6kg 8/9 Suspension Type Front47mm Showa inverted leading-axle twin-chamber cartridge-type telescopic fork with 16-step adjustable compression and rebound damping; 315mm axle travel RearPro-Link with Showa damper, adjustable low-speed (13- step) & high-speed (3.5-turn) compression and 17-step rebound damping; 315mm axle travel Wheels Type FrontAluminium rim/wire spoke RearAluminium rim/wire spoke Rim Size Front21 x 1.6 Rear18 x 2.15 Tyre Size Front80/100 21 (51M) Rear110/100 18 (62M) Brakes Type Front240 x 3mm hydraulic disc with dual-piston calliper and sintered metal pads Rear240 x 4mm hydraulic disc with single-piston calliper and sintered metal pads

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2011 HONDA CRF250X Specifications

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Filed Under (Honda) by admin on 18-02-2011

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Specifications CRF250X (ED-type) ENGINE Type Liquid-cooled 4-stroke 4-valve SOHC single Displacement 249cm 3 Bore  Stroke 78  52.2mm Compression Ratio 12.9 : 1 Max. Power Output 21.9kW/9,000min -1 (95/1/EC) Max. Torque 24.2kW/8,000min -1 (95/1/EC) FUEL SYSTEM Carburation 37mm Keihin FCR flat slide carburettor with throttle position sensor (TPS) Fuel Tank Capacity 7.3 litres (including 1.6-litre reserve) ELECTRICAL SYSTEM Ignition System Computer-controlled digital capacitor discharge with electronic advance and lighting coil Starter Electric / Primary kick DRIVETRAIN Transmission 5-speed Primary Reduction 3.611 (65/18) Gear Ratios 1 2.384 (31/13) 2 1.750 (28/16) 3 1.333 (28/21) 4 1.041 (25/24) 5 0.814 (22/27) Final Reduction 3.786 (53/14) Final Drive #520 T-ring roller chain FRAME Type Semi-double cradle; aluminium twin-spar CHASSIS Dimensions (LxWxH) 2,174 x 827 x 1,261mm Wheelbase 1,481mm Caster Angle 27˚ 54′ Trail 118mm Seat Height 958mm Press information for 2011 CRF250X 3 EU-EN Ground Clearance 346mm Kerb Weight 115kg SUSPENSION Type Front 47mm inverted Showa leading-axle twin- chamber cartridge-type telescopic fork with 16-step adjustable compression and rebound damping; 280mm axle travel Rear Pro-Link with single Showa damper, adjustable low-speed (13-step) & high-speed (3.5-turn) compression and 17-step rebound damping; 313mm axle travel WHEELS Type Front Aluminium rim/wire spoke Rear Aluminium rim/wire spoke Rim Size Front 21 x 1.60 Rear 18 x 2.15 Tyre Size Front 90/90-21 M/C 54R Rear 120/90-18 M/C 65R BRAKES Type Front 240  3mm hydraulic disc with dual-piston caliper and sintered metal pads Rear 240  4mm hydraulic disc with single-piston caliper and sintered metal pads

Triumph Bonneville Tuning Manual

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Filed Under (Triumph) by admin on 20-11-2010

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1. The Float The float bowl acts as a fuel reservoir to meet engine demand. The float is hinged on a pin in the float boss. It rises and falls with the fuel level in the float bowl. The small metal tang integrated in the plastic float supports the float valve, also known as the float needle. As the fuel in the float bowl rises, the float valve is pushed into the valve seat, until it’s high enough to shut off the fuel flow to the bowl. As fuel is used the level in the bowl drops lowering the float which pulls the float valve from its seat, and fills again. Adjusting the height of the float has a big effect on the mixture as a low or high float level makes it harder or easier for the vacuum to suck fuel into the venturi. Differing float levels cause an imbalance which may be perceived as vibration. 2. The Choke This system is referred to as the choke. But that’s a misnomer. When you pull the choke knob, what you’re doing is retracting a plunger that opens a tube connected to the starter jet, allowing additional fuel to enter the venturi just below the vacuum hose nipple. It supplements the pilot system at start up. 3. The Pilot System The primary purpose of the pilot system is to supply the mixture at idle. It continues to supply fuel throughout the entire throttle range, but after about 1/8 throttle is reached the main system starts to put out more of the total mixture, up to full throttle. By adjusting the idle with the big screw on the left side of the carburettors the position of the butterfly is altered, so exposing one or more of the four small holes that are drilled into the venturi, (leading to the pilot jet) just under the butterfly valve, letting more or less air pass the butterfly. Adjusting the pilot screw that’s under the carburettor varies the amount of air premixing with the fuel before it enters the venturi. 4. The Main System Open the throttle and the cable that’s connected to the butterfly valve turns it from vertical to horizontal, so letting more air through the venturi. This increases the vacuum effect that is transferred up through the vacuum drilling in the slide to the diaphragm valve that leads to the diaphragm chamber. The top chamber is separated from the bottom by a rubber diaphragm. The bottom chamber is open to atmospheric pressure from the airbox. When the vacuum in the top chamber rises enough, the constant ambient pressure of the lower chamber helps the diaphragm valve overcome the downward force of the diaphragm spring, so it rises from the ven- turi. As the diaphragm is raised the needle is pulled out of the needle jet, exposing a thinner portion of the needle taper which allows more fuel to rise into the venturi to meet the increased engine demand. The key parts of the main system are shown in the photo below

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Aermacchi IHRO1 Machine Specifications

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Filed Under (Aermacchi) by admin on 13-11-2010

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1. IHRO 1 caters for single cylinder thoroughbred Grand Prix racing motorcycles constructed during the period 1945-1972 inclusive, for the specific purpose of participation in Grand Prix competition during that era. Maximum capacity for any machine is 500cc, and wherever possible it is intended to run three classes, for machines up to 250cc, 350cc and 500cc. 2. Motorcycles must be presented in original, period condition, with no external updating. Period appearance seats, fuel tanks and fairings (if fitted) must be used. No external changes may be made to the appearance of any machine unless it can be proved that such a change was made in the period. Modern safety fixtures required by some federations and modifications mentioned in this document are not covered by this ruling. 3. No disc brakes are allowed. Drum brakes only may be used. 4. No alloy/magnesium wheels are allowed. Wire wheels only may be used. 5. All machines must have twin shock rear suspension: No monoshocks except Vincent Grey Flash. Suspension units must resemble period components, i.e. no external gas reservoirs etc. 6. All frames and swinging arms must conform exactly to period appearance; no box section swinging arms allowed unless fitted by the manufacturer to that machine in the period. 7. The maximum permitted rim width on either wheel is WM3. 8. No slick tyres, hand cut slicks or modern racing tyres designated by the manufacturer as being exclusively for wet weather use are permitted. Only the following rear tyres may be fitted. Any 19″ tyre. The following 18″ tyres, Dunlop 3.50×18, 3.50/3.25×18 KR124 and KR124A, Avon AM22 110/80×18 Rear Fitment and Avon AM18 120×18 9. Choice of carburettor is free, provided that this is of a period type cylindrical slide model, albeit of a later manufacture. Flat slide instruments are not permitted with the exception of Gardner carburettors. Fuel injection is not permitted except if it can be proved that particular motorcycle ran between 1945-72 with the same type of injection system fitted. A Wal Philips injector is classified under this heading. 10. The type of fuel used must conform to the ACU and FIM’s current fuel regulations for 100LL Avgas at 102 MON. See full specifications below. All machines must finish a race with a minimum of 2 litres of fuel in the tank to allow a sample to be taken for analysis. 11. The use of belt primary drives is encouraged.

DUCATI 900 SuperSport Engine performance And technical specification

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

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Displacement: 904 cc Bore: 92 mm Stroke: 68 mm Max. power: 75 hp at 7000 rpm Max. torque: 80 Nm at 5000 rpm Max. velocity: 220 km/h Pass-By noise: 82 dB(A) Homologation: 1992 Main Targets of Development Today’s motorcycle market requests more powerful engines, however, legislative noise and pollution limits are becoming more severe. In order to reduce development cost only small modifications were allowed. Entirely new designs of technical components (i.e. cylinder head) had to be avoided. In additon, the complete development had to be finished in a relatively short time of about three months. The most important targets of development were: better engine performance: – more max. power: +5 hp – more torque at low rpm lower noise emission: -2 dB(A) 80 dB(A) (89/235/CEE) change from carburettor to fuel injection system Figure 1, Ducati 900 SS
3 Engine performance calculation with WAVE A complete model of the new engine concept (fuel injection) with actual intake- and exhaust geometry allowed us to set up a reference engine-cycle-simulation model for further optimization. The most important parameter-variation during the cycle-studies to improve volumetric efficiency were: intake duct length valve timing constant or even lower exhaust backpressure Figure 2 shows the improvement in calculated engine performance due to different intake-duct length and modified valve timing. Figure 3 gives an example of accuracy of the calculation results compared with measured data of engine performance with new intake-duct length. Figure 4 illustrates the final engine performance with modified valve-timing, intake-duct length and new exhaust silencer. A comparison of measured performance data between the original and the redesigned engine gives shows the improvements in terms of maximum power and torque at low rpm.

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Vespa Primavera 125 Service Manual

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Filed Under (Vespa) by admin on 28-10-2010

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Clutch control (lever) and gear change (twist grip) – 2. Front brake lever – 3. Throttle twist grip – 4. Main switch unit – 5. Front brake shoes – 6. Rear brake pedal – 7. Kickstarter – 8. Gear selector and gear control adjusting screws – 9. Rear brake shoes – 10. Clutch – 11. Carburettor and air cleaner – 12. Choke control – 13. Fuel tap – 14. Lever securing dual seat – 15. Lever for removing engine flap. Fig. 2 – Installation of controls and transmissions PERFORMANCE AND SPECIFICATIONS Consumption (accord to CUNA Standard) 2 It/100 Km. (118 mls/U.S. gal.; 142 mls/imp. gal.), gasoline -oil mixture i. e. 2% oil. Max. speed (CUNA Standards) 85 Km/h 52.8 mph.). Carrying capacity 2 persons and 10 Kg. (22 lbs) of luggage. Range 280 Km ( 174 mls) Max fuel capacity: 5.6 It. (1.48 U.S. galls or 1.23 imp., galls ( incl. 1 It. – 0,26 U.S. galls or 0.21 imp. galls – of reserve). Wheel base 1180 mm (46″.5 ) Handlebar width 670 mm (26″.4 ) Total length 1665 mm (65″.6 ) Max height 1015 mm (40″.0 ) Min. ground clearance 225 mm ( 8″.86) Turning radius 1650 mm (64″.96) Total dry weight 73 Kg. ( 160 Ibs) ENGINE Single horizontal cylinder two stroke rotary distribution : i.e., carburated mixture is regulated by the crankshaft rotation. Displacement 121.17 cc. – 7.39 cu. in. Bore 55 mm – 2″.16. Stroke 51 mm – 2″.01. Compression ratio: 1 :8.2. Outer H. T. coil ignition. Spark advance 250 ± 1 ° before T. D. C. Sparking plug Bosch W 240 T 1 ; Champion L 86; AC 42 F; Marelli CW 240 N.
1. Steering column and front suspension – 2. Engine – 3. Crankcase clutch side with swinging arm pivoted to frame – 4. Rear suspension spring and hydraulic damper assy. – 5. Screw securing carburettor – 6. Bolt securing damper of rear suspension – 7. Bolt securing engine

KAWASAKI Z1000 GTR Electronic Cruise Control Installation Manual

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Filed Under (Kawasaki) by admin on 25-10-2010

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The actuator spool is installed in the CIU housing with the actuator cable. The actuator spool is rotated to fully extend the cable. 2nd step. The dual spool and carburettor cable are installed. The carburettor cable is attached to the lower groove in the dual spool. The other end of the carburettor cable is attached to the carburettors. Note the position of the roll pin. It is nearly contacting the end of the groove in the actuator spool. The free play in the carburettor cable must be adjusted so that the cable outer can be pulled out 2 ~ 3mm before the carburettors start to open. This ensures that the cruise control cannot prevent the carburettors returning to idle. If more free play is allowed the response of the cruise control is compromised. This adjustment of free play is usually performed after final assembly of the CIU is completed and the CIU is in its final location. This is because flexing the cable affects the free play. It is shown at this stage in these diagrams to improve clarity. After this adjustment is performed, the carburettor cable adjustment MUST NOT BE MOVED. All future adjustments of free play in the throttle must be performed on the throttle cable from the throttle grip. If incorrect free play in the carburettor cable is suspected due to inconsistent cruise operation or because of inconsistent idle speed, the adjusters on the throttle cable from the hand grip must be backed all the way off to give as much free play as possible. If this does not result in AT LEAST 5mm of free play in the throttle cable, the throttle cable must be removed from the hand grip or CIU before adjustment of the carburettor cable is attempted. This is crucial because the amount of free play in the throttle cable also affects the apparent free play in the carburettor cable

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