what purpose does the diaphragm on the side of ttr 230 carb serve

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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

620A-230, 2620A-230-B 20 AMP ON BOARD BATTERY CHARGER Two Output OWNER'S MANUAL

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Filed Under (Tips and Review) by admin on 28-11-2010

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INSTALLING THE CHARGER Choosing Charging Location The charger should have at least eight inches of unobstructed area on all sides of the unit for effective cooling. The case of this charger will become warm during operation. Do not install the charger on carpeted, upholstered, or varnished surfaces. Mounting the Charger 1. Use corrosion resistant ¼” dia. bolts, backed by a flat washer, and secured to the mounting surface with a split-ring lock washer. 2. Hold the charger to the mounting surface and mark the holes. 3. Remove the charger and drill the mounting holes. 4. Align the charger and assemble the mounting hardware. Secure. Making DC and AC Connections Check polarity of the battery posts. The POSITIVE (POS., P, +) battery post usually has a larger diameter than the NEGATIVE (NEG., N, -) post. Refer to the pictures shown above for different configurations. After securing the battery connections, plug the AC line cord into an available AC outlet that is protected by a Ground Fault Circuit Interrupter (GFCI) breaker

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HONDA VTX1300C / R/ S/ T Fuel Valve Diaphragm Replacement

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Filed Under (Honda) by admin on 28-11-2010

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1. Remove the fuel tank using the procedure in the Service Manual. However, do not remove the fuel valve from the fuel tank. 2. Drain the fuel into an approved container. 3. Remove the four screws and diaphragm cover. NOTE: The diaphragm cover is under spring pressure. Do not lose the spring or screws. The countermeasure part has a paint mark near the air vent hole. 4. Replace the diaphragm, spring, cover, and screws with new parts included in the kit. Install the new diaphragm with the plastic retainer facing the diaphragm cover. NOTE: Make sure the air vent hole is facing downward towards the ground. 5. Reinstall the fuel tank using the procedures in the Service Manual. 6. Refill the fuel tank. DEALER INVENTORY REPAIR VERIFICATION

2007-2008 Honda VTX1300C/R/S/T Fuel Valve Diaphragm Replacement Manual

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Filed Under (Honda) by admin on 21-04-2011

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According to Federal law, any affected units in your new or used inventory cannot be sold or leased until they are repaired. Refer to the REPAIR VERIFICATION and REPAIR PROCEDURE sections of this Service Bulletin.
Before you begin the repair procedure, check if the repair has been performed on the unit. See the IDENTIFICATION section of this Ser- vice Bulletin for more details. • If there is a punch mark – No further action is necessary. • If there is no punch mark – You must pro- ceed with the REPAIR PROCEDURE sec- tion of this Service Bulletin. NOTE: Units repaired in the warehouse may not be reflected on iN at the begin- ning of the campaign. For this reason, always check the VIN stamp prior to per- forming this repair. If you have any questions about repair verifi- cation, please contact your DSeM or TechLine at (800) 421-1900, option 9. NOTE: Refer to section 2-7 of the 2003-2008 VTX1300C/R/S/T Service Manual for specific fuel tank removal instructions. 1. Remove the fuel tank using the procedure in the Service Manual. However, do not remove the fuel valve from the fuel tank. 2. Drain the fuel into an approved container. 3. Remove the four screws and diaphragm cover. NOTE: The diaphragm cover is under spring pressure. Do not lose the spring or screws. The countermeasure part has a paint mark near the air vent hole. 4. Replace the diaphragm, spring, cover, and screws with new parts included in the kit. Install the new diaphragm with the plastic retainer facing the diaphragm cover. NOTE: Make sure the air vent hole is facing downward towards the ground. 5. Reinstall the fuel tank using the procedures in the Service Manual. 6. Refill the fuel tank

Honda Shadow VT750C Fuel Valve Diaphragm Replacement

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

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1. Drain the fuel into an approved container. 2. Remove the fuel tank using the procedure in the Service Manual. However, do not remove the fuel valve from the fuel tank. 3. Remove the four screws, and diaphragm cover. NOTE: The diaphragm cover is under spring pressure. The countermeasure part has a paint mark near the air vent hole. 4. Replace the diaphragm, spring, cover, and screws with new parts included in the kit. Install the new diaphragm with the plastic retainer facing the diaphragm cover. NOTE: Make sure the air vent hole is facing downward towards the ground. 5. Reinstall the fuel tank using the procedures in the Service Manual. 6. Refill the fuel tank

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.

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

2010 KAWASAKI SUPER SHERPA DUAL PURPOSE Specifications

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Filed Under (Kawasaki) by admin on 05-11-2010

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Engine type Four-stroke, DOHC, 4-valve single Displacement 249cc Bore x stroke 72.0 x 61.2 mm Compression ratio 9.3:1 Cooling Air Fuel system Mikuni BST34 carburetor Ignition Digital DC-CDI Transmission 6-speed Final drive Chain Frame Tubular semi-double cradle, high-tensile steel Rake/trail 28˚/107 mm (4.2 in.) Front suspension/ wheel travel Telescopic fork/230 mm (9.1 in.) Rear suspension/ wheel travel UNI-TRAK® single shock system Adjustable Preload and 20-way Rebound Damping Adjustment/186 mm (7.3 in.) Tire, front 2.75×21 Tire, rear 4.10×18 Brakes, front 2-piston, Single disc Brakes, rear Single piston, Single disc Length, width, height 2080 x 780 x 1190 mm (81.9 x 30.7 x 46.9 in.) Seat height 830 mm (32.7 in.) Wheelbase 1375 mm (54.1 in.) Ground clearance 270 mm (10.6 in.) Fuel capacity 9.0 litres (2.0 gal.) Curb weight* 128 kg (282.2 lbs.) Warranty 12 month

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