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KAWASAKI 1500 CARB THUNDER Air Filter Kit Installation And removal Instruction

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

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1) Remove Seat 10mm KAW 1500 CARB ADPTOR QTY PARTS LIST 1 1500 CARB ADAPTOR 1 3″ PIECE OF HOSE 1 DOUBLE BARB 1 L-BARB 1 3/8″ RED PLUG 1 ¼” BLACK VACCUM PLUG 1 M6-1 NYLON INSERT LOCK NUT 3 M6-1 X 16 FLAT SOCKET HD CAP SCREW 1 170 MJ 1 INSTRUCTIONS 2) Remove Dash Plaque 8mm bottom Bolt only 3) Lift from bottom then Remove speedo cable 4) Disconnect Electric Plugs 5) Remove 12mm bolts holding tank 6) Turn petcock OFF – Pinch off fuel line. 7) Disconnect the electric Plug under speedo opening 8) Lift Tank at Rear – Disconnect two Vent Lines; Fuel gage Vent will Pull up – Remove. 9) Remove Chrome Air Cover. 10) Left side Remove two screws – 10mm bolt in side Air box. Pull hoses off Remove 1″ hose going to cross over Tube. 11) Remove two 8mm bolts on Bracket – Remove Bracket 12) Remove Screw on Top of air Box Snorkel 13) Remove both side covers 14) Remove air Backing plate right side (Crank Case Breather hose that connects to stock air box will connect to new) 15) Remove Bracket that holds Carb and holds Backing Plate 16) Take idle adjustable Knob loose – let hang loose 17) Take Choke Knob out of holding Bracket 18) Hose that went to cross over tube MAY BE PLUGGED OR VENTED your Choice (Fresh air unit) ** 98′S or any models with carb warmer should disconnect carb warmer by pinching off line on each side of connector that plugs into carb on bottom. Small bracket with one screw directly on the bottom of carb. 19) Loosen Clamp that holds Carb to intake Manifold, Carb will hang loose 20) Remove intake Manifold 5mm Allen- Remove crossover tube. 21) (- BE CAREFULL-) LINE IT UP RIGHT- Replace intake Manifold (YOU MAY TO SEAL THIS WITH A SEALER LIKE PERMATEX) ( BE SUPER CAREFUL TO KEEP INTAKE COVERED DURING EACH STEP. SCREWS CAN FALL ONTO INTAKE) 22) Drain Float Bowl 3mm allen – very bottom of carb 23) Remove Float Bowl 4 screws (#2 Phillips) let hang down 24) Remove main jet, if Emulsion tube comes out use 8mm and Flat tip to separate jet from Emulsion tube. 25) Install with new jet 26) CAREFULLY Reinstall Float Bowl Cover 27) If installing Needle Remove Top Cover of Carb, Carefully pull the slide out. ( BE CAREFUL WITH DIAPHRAM) Remove Spring + Needle Install new Needle (WE RECOMMEND THE 3RD CLIP FROM TOP WITH TWO WASHERS ON TOP. REINSTALL 28) Be sure to reseat diaphragm – BE CAREFUL Reinstall Cover. 29) Install Carb to Intake – reconnect carb warmer if applicable 30) Reattach idle adjustment 31) Reattach Choke 32) Reattach Bracket in front of Carb- 33) Take Center bolt mount Rubber Gromlet from Stock Air box Plate install in to new Air box Adapter use stock Bolt, Attach to Bracke

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HW Prowler Carburetor Installation Instructions

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Filed Under (Mikuni) by admin on 31-10-2010

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1. Remove both seats and the plastic seat pans under the seats. 2. Remove the engine cover 3. Remove the air-box by removing the cross-bar support that runs under the air-box to the framing on each side by the seat framing and disconnect the air box from the carburetor and from the plastic intake in the rear. 4. Disconnect the engine breather hose from the bottom of the air box 5. Set the air-box to the side 6. Disconnect the plug going to the stock carburetor, this is the electronic choke. Wrap the end left on the vehicle with electrical tape. 7. Cut the fuel line just above the fitting on the passenger side of the carb 8. Remove the side cover off the drivers side of the carb where the throttle cable goes in, see fig. #1 9. Pull the throttle cable out and then remove the throttle cable end from the throttle plate See Fig. #2 10. Loosen the clamp on the rear of the carb holding the carb on 11. Pull the carb out of the intake boot 12. Set OE carb to the side. 13. Push the new Carb into the intake boot making sure the carb is perfectly vertical and then tighten the clamp back up. The new carb is slightly larger than the stock one so some additional pressure will be needed to get it in. 14. Route all the breather lines connected to the carb down under the carb. 15. Connect the throttle cable onto the new carb but putting the cable end in the bottom hole of the throttle plate on the passenger side of the carb allowing the cable to ride in the slot in the plate and then turn the throttle plate clock wise allowing the threaded end of the cable to fit into the lower round hole of the throttle cable connection plate. See Fig. #3 16. Make sure you have a nut on each side of the plate turn the nut on the outside of the plate to take up the slack in the throttle cable then tighten the nut on the inside of the plate. See Fig. #3 17. Push the fuel line onto the fuel inlet on the passenger side of the carb and install the supplied clamp to hold it on. The fuel line will be a little hard to push on. 18. DO NOT ATTEMPT TO INSTALL THE CHOKE CABLE PARTS SUPPLIED IN THE KIT UNTIL AFTER THE CHOKE CABLE ITSELF IS INSTALLED AND READY TO SCREW INTO THE CARBUETOR. 19. To install the supplied choke cable, drill a 3/8″ hole in the dash on the left side of the steering wheel in a location convenient to your left hand. 20. Remove the plastic nut from the bottom of the choke handle on the choke cable. 21. Push the choke cable thru the hole you drilled and then slide the nut over the cable to the inside of the dash and reinstall back on the back of the choke mechanism. Some dash screws maybe needed to be removed to accomplish this

42MM MIKUNI FLATSLIDE CARBURETOR INSTRUCTIONS

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Filed Under (Mikuni) by admin on 31-10-2010

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To install, remove the stock carb per Yamaha shop manual procedures. Remove stock throttle cables. Install Mikuni HSR carb into intake manifold and tighten manifold clamp. Install new HSR series throttle cables and adjust cable slack per Yamaha shop manual procedures. Hook fuel line to HSR carb and fasten clamp.* Start motorcycle and fine tune HSR carb for proper running per supplied Mikuni tuning manual. *NOTE: Mikuni HSR series carburetors are designed for gravity-feed fuel systems. You should bypass your stock fuel pump and directly feed your HSR carb right from the fuel petcock. We have noted, though, that you may not be able to get good fuel flow from your Road Star fuel tank in low-fuel situations. You may run your stock fuel pump with the HSR carb, but to do so requires the purchase and installation of an adjustable fuel pressure regulator (set at 1/2 to 1 lb. of pressure). These are available from most auto parts stores. The stock carb has 2 wires running to the lower rear of the float bowl , these were for a carb warmer, they are not used in this application. Unplug these wires at the main wire harness and retain with your stock carb. The Road Star ignition system uses data from the stock throttle position sensor (TPS) to manage your ignition timing. It is necessary to give the bike this information. You may do so by removing the TPS sensor from the stock carb, leaving it plugged into the main wire harness (the sensor must be fixed to a closed-throttle position), or you may locate the plug for the TPS on the main wire harness and test the leads – you will find one ground, one with .5V and one with 1.5V. Connect the 1.5V to the ground and this will give the bike the same information as stock fully closed throttle. The output of the OEM fuel pump is too high and will cause fuel overflow in the HSR carb, resulting in a possible dangerous fire hazard

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Mikuni HSR 42/ 45 Installation Instructions

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Filed Under (Mikuni) by admin on 31-10-2010

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To install, remove the stock carb per Yamaha shop manual procedures. Remove stock throttle cables. Install Mikuni HSR carb into intake manifold and tighten manifold clamp. Install new HSR series throttle cables and adjust cable slack per Yamaha shop manual procedures. Hook fuel line to HSR carb and fasten clamp.* Start motorcycle and fine tune HSR carb for proper running per supplied Mikuni tuning manual. *NOTE: Mikuni HSR series carburetors are designed for gravity-feed fuel systems. You should bypass your stock fuel pump and directly feed your HSR carb right from the fuel petcock. We have noted, though, that you may not be able to get good fuel flow from your Road Star fuel tank in low-fuel situations. You may run your stock fuel pump with the HSR carb, but to do so requires the purchase and installation of an adjustable fuel pressure regulator (set at ½ to 1 lb. of pressure). These are available from most auto parts stores. The stock carb has 2 wires running to the lower rear of the float bowl , these were for a carb warmer, they are not used in this application. Unplug these wires at the main wire harness and retain with your stock carb. The Road Star ignition system uses data from the stock throttle position sensor (TPS) to manage your ignition timing. It is necessary to give the bike this information. You may do so by removing the TPS sensor from the stock carb, leaving it plugged into the main wire harness (the sensor must be fixed to a closed-throttle position), or you may locate the plug for the TPS on the main wire harness and test the leads – you will find one ground, one with .5V and one with 1.5V. Connect the 1.5V to the ground and this will give the bike the same information as stock fully closed throttle.

Cobra Motorcycle and ATV Specifications CX65 CX50 Sr. (The King) CX50 Jr. ECX 70 ECX 50 ECX80AC

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Filed Under (Cobra) by admin on 14-11-2010

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Dry Weight 122 lbs 91 lbs 81 lbs 210 lbs 206 lbs 210 lbs Engine Cobra 65cc 2-stroke Cobra 50cc 2-stroke Cobra 50cc 2-stroke Cobra 70cc 2-stroke Cobra 50cc 2-stroke Cobra 80cc 2-stroke Bore x Stroke 44.5mm x 41.7mm 39mm x 41.7mm 39mm x 41.7mm 44.5mm x 44.7mm 39mm x 41.7mm 47.6 mm x 44.7mm Induction Case Reed V-Force® Reed Valve- 24mm Mikuni carb Case Reed Carbon Pedal 19mm carb Case Reed Carbon Pedal 14mm carb Case Reed V-Force® Reed Valve- 24mm Mikuni carb Case Reed Carbon Pedal 21mm carb Case Reed V-Force® Reed Valve- 24mm Mikuni carb Cooling Water cooled Cylinder and Case Water cooled Water cooled Water cooled Cylinder and Case Water cooled Water cooled Cylinder and Case Clutch Hydraulic ally actuated Cobra 3Gx 3-Shoe Cobra 3Gx 3-Shoe Hydraulic ally actuated – (auto option) Cobra 3Gx 3-Shoe Rekluse Z-ball auto-clutch Transmission Six-speed sequential Single-speed auto Single-speed auto Six-speed sequential Single-speed auto Six-speed sequential Exhaust Tuned pipe and silencer Tuned pipe and silencer Tuned pipe and silencer Tuned pipe and silencer Tuned pipe and silencer Tuned pipe and silencer Lubrication Mixture lubrication Mixture lubrication Mixture lubrication Mixture lubrication Mixture lubrication Mixture lubrication Fuel Capacity 1.06 Gallons .85 Gallons .70 Gallons 1.9 Gallons 1.9 Gallons 1.9 Gallons Frame Twin Spar Oval HSLA Double Cradle 4130 ChrMo Steel Double Cradle 4130 ChrMo Steel Arens design twin spar Arens design twin spar Arens design twin spar Wheelbase 1140mm 990 mm 908 mm 1067mm (track 915mm) 1067mm (track 915mm) 1067mm (track 915mm) Seat Height 762mm 680 mm 607 mm 762 mm 737 mm 762mm Ground Clearance 250mm 240 mm 216 mm 205 mm 205 mm 205mm Front Brakes Hydraulic Disk (205mm) Hydraulic Disk (160mm) Hydraulic Disk (160mm) Hydraulic Disk (160mm) Hydraulic Disk (160mm) Hydraulic Disk (160mm) Rear Brakes Hydraulic Disk (165mm) Hydraulic Disk (140mm) Adjustable Drum Hydraulic Disk (180mm) Hydraulic Disk (180mm) Hydraulic Disk (180mm) Front Suspension Marzocchi 35mm USD Adjustable 220mm travel Cobra 30mm USD 210mm travel Marzocchi 32mm 168mm travel Dual A-Arm with SVO™ patented steering design. 248mm travel Dual A-Arm with SVO™ patented steering design. 248mm travel Dual A-Arm with SVO™ patented steering design. 248mm travel Rear Suspension Öhlins Fully Adjustable 270mm travel Fox Piggyback Fully Adjustable 248mm travel Öhlins Piggyback 170mm travel Fox Piggyback 220mm travel Solid axle Fox Piggyback 220mm travel Lightweight tube axle Fox Piggyback 220mm travel Solid axle Wheel Front / Rear 14″ spoke / 12″ spoke (Al rims, Billet hubs, 9ga. spokes) Cobra 12″ Billet Cobra 10″ Billet Cobra 10″ Billet Cobra 10″ Billet ITP 10×5 (4 x1) Al Douglas 8×6.5 (4×2.5) Al ITP 10×5 (4 x1) Al Douglas 8×6.5 (4×2.5) Al ITP 10×5 (4 x1) Al Douglas 8×6.5 (4×2.5) Al Tires Front / Rear 60-100×14 Dunlop 80-100×12 Dunlop 2.5×12 / 2.75×10 2.5×10 / 2.75×10 ITP Holeshot 19/6 ITP 16/6.50-9 ITP Holeshot 19/6 ITP 16/6.50-9 ITP Holeshot 19/6 ITP 16/6.50-9

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Honda XR600/ XR650L Camshaft Installation and removal Instructions

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Filed Under (Honda) by admin on 05-12-2011

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Remove the tappet covers. Remove the crankshaft cap and timing hole cap on the left engine case cover. Remove the spark plug. Rotate the engine in a counter clockwise direction. Position the engine at true top dead center (TDC) using the mark on the flywheel. True top dead center occurs when both the intake and exhaust valve are closed when the piston is at TDC. This is technically the end of the compression stroke and the beginning of the power stroke. The “artificial” TDC is during the overlap when both the intake and exhaust valves would be open. Since the rocker arms are located in the valve cover on an XR600, true TDC occurs when the cam lobes are pointed downward when the piston is at TDC. Remove the cylinder head cover. Warning, do not drop the locating dowels into the cam chain cavity. There are two dowels, one on either side of the cover. Remove and discard the gasket. Note the positioning of the cam lobes, this will help during installation of your new Hot Cams camshaft. Note also the location of the sealed bearing on the end of the camshaft and the direction in which it is facing. Loosen the bolts that hold the camshaft sprocket. Remove the lower camshaft sprocket bolt first, it will be necessary to rotate the engine. Rotate the engine back to TDC. Release the spring tension on the cam chain tensioner by lifting the end of the spring out of its hole in the tensioner block. A spring tool is a good method. Be careful not to scar the cylinder head’s gasket surface for the cylinder head cover. Remove the allen bolt that holds the end of the tensioner block shaft
just to the inside of the tensioner block. Note the location of the tensioner block shaft cap ridge. Using a pair of pliers pull the shaft out by grasping the ridge and using a clockwise rotation of the shaft while pulling outward. Pull the tensioner block upwards, out of the cylinder head. Remove the top camshaft sprocket bolt. Pull the sprocket off the camshaft but maintain upward tension, do not allow the chain to sag, it is possible for the chain to “slip” on the bottom sprocket of the crankshaft and change the cam timing. Remove the camshaft. Remove the cam bearings. Set the stock camshaft with the auto-decompression aside. It is not possible to use the auto-
decompression on the Hot Cams so do not attempt to re-install. Use a manual decompression. Install the bearings onto the new Hot Cam

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THUNDERJET INSTALLATION FIXTURE for S&S CARBURETORS

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Filed Under (S&S) by admin on 31-10-2010

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FUEL DELIVERY TUBE 6 5 6 5 6 5 6 5 -A Ambe -A Ambe r rton Drive, Elkridg e, MD 21075 410-579-2828 e, MD 21075 410-579-2828 ton Drive, Elkridg Using the two ¼”- 20 cap screws provided, secure t carb body at air cleaner surface to fixture through h # 2 & 5 . NOTE: Holes # 2 & 6 may be used to angle th ThunderJe clearance is needed below the fuel tank. he oles e t farther forward if additional ADJUSTABLE AIR BLEED les # RIGINAL AIR Secure Carb to fixture using ho & 8. 1 O LEED B BLOCKING Secure C fixture using ho & 6. arb to les # 1 BOWL VENT RELOCATION Secure Carb to fixture using holes # 6 & 7 . FLOAT BOWL ee Reverse side for S&S ‘B’ & ‘D’ Secure float bowl to fixture using the 3/8″- 16 flange nut and threaded rod provided using the 20 degree slope. S instructions. S&S ‘B’ & ‘D’ CARBS EXTERNAL BOWL VENT 6 5 6 5 6 5 6 5 -A Amberton Drive, Elkridge, MD 21075 410-579-2828 -A Amberton Drive, Elkridge, MD 21075 410-579-2828  ADJUSTABLE AIR BLEED THUNDERJET FUEL TUBE :00 position, viewed facing air filter (9 surface) sing the two #10-24 cap screws provided, :00 position, viewed facing air filter U secure the Carb body at bowl surface to fixture through the two holes marked ‘B’ . (3 surface) Using the two #10-24 cap screws provided, FLOAT BOWL secure the Carb body at bowl surface to fixture through the two holes marked ‘D

HONDA TRX 400EX Removing Stock Carb and Cables INSTRUCTION

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Filed Under (Honda) by admin on 21-12-2011

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Remove seat/fender assembly and fuel tank. 2. Remove throttle cables paying close attention to routing. 3. Remove thumb throttle housing if you are installing a twist throttle. 4. Remove air box and air box intake tube. 5. Remove stock carburetor. 6. Stuff a clean rag into intake manifold to keep debris from entering engine. Preparing machine for carburetor installation 1 . Route the provided throttle cables per manufacturer’s recommended procedure, routing them the same as the stock cables. 2 . Remove the rubber alignment tabs from the manifold using a razor blade or cutters. Be very careful not to damage the intake manifold! 3. Remove air box intake tube from the air box and use a hacksaw to cut approx. 1½” off of the air box intake tube. Your tube should resemble the one shown in Figure 1. Re-assemble the air intake tube into air box and install back onto bike. Don’t forget to tighten clamp around intake tube and reinsert crank vent into the air boot. Figure 1. Thumb Throttle Attach cable into cable wheel with the cable end at the 8: 00 position of the cable wheel, then into bracket. Secure by replacing the cable bracket end and phillips screw. See Figure 2. Figure 2. Twist Throttle 1. Install the pull (see figure 4 for cable identification) , cable end into the 8: 00 position and the idle cable end into the 11: 00 position on the cable wheel. See Figure 3

KTM 250/ 300/ 380 SX,MXC,EXC ENGINE REPAIR MANUAL

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Filed Under (KTM) by admin on 12-11-2010

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Repair manual KTM 250 / 300 / 380 Art No 3206004 -E 2-2C main jet jet needle jet needle air control screw idle adjusting screw idle jet throttle valve Idling range A Operation with closed throttle valve. This range is influenced by the position of the air control screw 1 and the idle adjusting screw 2 . Only make adjustments when the engine is hot. To this end, slightly increase the idling speed of the engine by means of the idle adjusting screw. Turning it clockwise produces a higher idling speed and turning the screw counterclockwise produces a lower idling speed. Create a round and stable engine speed using the air control screw (basic position of the air control screw = open by 1.5 turns). Then adjust to the normal idling speed by means of the idle adjusting screw. Opening up B Engine behavior when the throttle opens. The idle jet and the shape of the throttle valve influences this range. If, despite good idling-speed and part-throttle setting, the engine sputters and smokes when the throttle is fully opened and develops its full power not smoothly but suddenly at high engine speeds, the mixture to the carburetor will be too rich, the fuel level too high or the float needle is leaking. Part-throttle range C Operation with partly open throttle valve. This range is only influenced by the jet needle (shape and position). The optimum part-throttle setting is controlled by the idling setting in the lower range and by the main jet in the upper range. If the engine runs on a four-stroke cycle or with reduced power when it is accelerated with the throttle partly open, the jet needle must be lowered by one notch. If then the engine pings, especially when accelerating under full power at maximum engine revs, the jet needle should be raised. If these faults should occur at the lower end of the part throttle range at a four-stroke running, make the idling range leaner; if the engine pings, adjust the idling range richer. Full throttle range D Operation with the throttle fully open (flat out). This range is influenced by the main jet and the jet needle. If the porcelain of the new spark plug is found to have a very bright or white coating or if the engine rings, after a short distance of riding flat out, a larger main jet is required. If the porcelain is dark brown or black with soot the main jet must be replaced by a smaller one. mixture too rich: too much fuel in proportion to air mixture too lean: not enough fuel in proportion to air 1 2 OPERATING RANGES OF THE CARBURETOR 2-3C Carburetor adjustment Basic information on the original carburetor setting The original carburetor setting was adapted for an altitude of approx. 500 meters (1600 ft.) above sea level, and the ambient temperature of approx. 20°C (68°F), mainly for off-road use and central European premium-grade fuel (ROZ 95 MOZ). Mixing ratio 2-stroke motor oil : super fuel 1:40 – 1:60. Basic information on a change of the carburetor setting Always start out from the original carburetor setting. Essential requirements are a clean air filter system, air-tight exhaust system and an intact carburetor. Experience has shown that adjusting the main jet, the idling jet and the jet needle is sufficient and that changes of other parts of the carburetor will not greatly affect engine performance. RULE OF THUMB:

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KTM 60 SX / 65 SX REPAIR MANUAL ENGINE

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Filed Under (KTM) by admin on 12-11-2010

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Carburetor adjustment Basic information about the original carburetor setting The original carburetor setting was adapted for an altitude of approx. 500 meters (1600 ft.) above sea level, and the ambient temperature of approx. 20°C (68°F), mainly for off-road use and central European premium-grade fuel (ROZ 95). Mixing ratio 2-stroke motor oil : super fuel 1:40 . Basic information of changing the carburetor setting Always start out from the original carburetor setting. Essential requirements are a clean air filter system, air-tight exhaust system and an intact carburetor. Experience has shown that adjusting the main jet, the idling jet and the jet needle is sufficient and that changes of other parts of the carburetor will not greatly affect engine performance. RULE OF THUMB: high altitude or high temperatures  choose leaner carburetor adjustment low altitude or low temperatures  choose richer carburetor adjustment * WARNING * -ONLYUSE PREMIUM – GRADE GASOLINE ROZ 95 MIXED WITH HIGH – GRADE TWO – STROKE ENGINE OIL . OTHER TYPES OF GASOLINE CAN CAUSE ENGINE FAILURE , AND USE OF SAME WILL VOID YOUR WARRANTY . -ONLYUSE HIGH – GRADE 2- STROKE ENGINE OIL OF KNOWN BRANDS ( I . E .SHELL ADVANCE RACING X). -NOTENOUGH OIL OR LOW – GRADE OILCAN CAUSE EROSION OF THE PISTON . USING TOO MUCH OIL , THE ENGINE CAN START SMOKING AND FOUL THE SPARKPLUG . -INTHE CASE OFA LEANER ADJUSTMENT OF THE CARBURETOR PROCEED CAUTIOUSLY . ALWAYSREDUCETHEJETSIZEINSTEPSOFONENUMBERTOAVOID OVERHEATING AND PISTON SEIZURE . NOTE: If despite a changed adjustment the engine does not run properly, look for mechanical faults and check the ignition system. Basic information on carburetor wear As a result of engine vibrations, throttle valve, jet needle, and needle jet are subjected to increased wear. This wear may cause carburetor malfunction (e.g., overly rich mixture). Therefore, these parts should be replaced after 1000 hours of using. Idling range – A Operation with closed throttle valve. This range is influenced by the idle adjusting screw 1 . Only make adjustments when the engine is hot. The idling speed can be changed by turning the idle adjusting screw. Turning it clockwise produces a higher idling speed and turning the screw counterclockwise produces a lower idling speed. Opening up – B Engine behavior when the throttle opens. The idle jet and the shape of the throttle valve influences this range. If, despite good idling-speed and part-throttle setting, the engine sputters and smokes when the throttle is fully opened and develops its full power not smoothly but suddenly at high engine speeds, the mixture to the carburetor will be too rich, the fuel level too high or the float needle is leaking. Part-throttle range – C Operation with partly open throttle valve. This range is only influenced by the jet needle (shape and position). The optimum part-throttle setting is controlled by the idling setting in the lower range and by the main jet in the upper range. If the engine runs on a four-stroke cycle or with reduced power when it is accelerated with the throttle partly open, the jet needle must be lowered by one notch. If then the engine pings, especially when accelerating under full power at maximum engine revs, the jet needle should be raised. If these faults should occur at the lower end of the part throttle range at a four-stroke running, make the idling range leaner; if the engine pings, adjust the idling range richer

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