how to adjust the idle speed on a yamaha 650 v star

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Ural carburetors Installation and idle adjustment

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Filed Under (Ural) by admin on 02-11-2010

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1. First you must adjust the idle. It is acceptable per the manual to adjust the idle by using the idle adjust screws (11). This usually involves screwing them then backing out 1 to 1.5 turns. Or you can adjust looking at the sliders 2. If installing the carburetors: a. Remove the cover (2) b. Reomve the slider (3) c. Place the throttle cable through the guide (18) with the spring (4) on the cable. d. Route the cable through the slide catch (6) e. Insert the slide assembly into the chamber and make sure it easily slides up and down. Direct the needle (8) into the opening of the diffuser (angled side visible). f. Screw assembly together and verify via throttle movement that slide moves freely. Attach fuel delivery lines to (12). 3. Using the idle set screw (11) raise the slider so the lower edge is 1-2 mm. 4. Assemble to engine using the proper gaskets (paper – felt – paper). 5. Using the locknut (26) adjust the free play of the throttle cable (2-3 mm) 6. Adjust the idle mixture screw – turn in completely then out 1 to 1.5 turns 1. Remove one of the spark plug caps, and with the cap shorted, adjust (11) to decrease RPM’s to a point of being minimally steady. 2. Adjust the mixture (15) out until RPM’s decrease. Turn in until RPM’s increase slightly. Then turn in screws ¼ to 1/3 revoultion. 3. Do the same for the second carburetor with the first spark plug cap shorted. 4. With both cylinders, adjust each idle (11) on each carburetor the same amount each until it’s at a steady, minimal RPM. Use small changes. (at this point you can use your airflow tool to check). 5. Sharply increase, then decrease throttle. Then engine must return to low RPMs smoothly. If the engine goes below limits, readjust (11) from step 4. Synchronization of the K68 Note: Rather than using the opposite cylinder shorted to test the pull of the live cylinder carburetor, you can use something like a Twinmax connected to the test ports (27 Fig 1). Or, if you have a model without these ports, use a Synchrometer (Appendix 2) held against the face of the carburetor. These tools merely show airflow passing through each carburetor (which is dependent on the position and wear on the slide). If using these tools, it’s not necessary to do the following steps. You wil want to use a throttle guide (Appendix 1), to show airflow at various throttle settings. Using the flow meter of your choice make sure each carburetor is the same at the various throttle settings. 1. Place the motorcycle on the center stand ensuring the rear wheel is suspended 2. Make sure you have large area to work with (safety issues here) 3. Shift into the highest gear with the engine running 4. Short one spark plug cap to the cylinder (using a nail or something in the fins) 5. Increase the speed to 40-50 km/hr 6. Fix the throttle using the throttle (maybe using a throttle stop screw under the throttle housing). 7. Reconnect other cylinder and using the opposite carburetor determine the speed which should be the same as the first. 8. Adjust the position of this slide to achieve the referenced speed using the locknut at the top of the carburetor.

Adjusting the Pekar K68 for Dnepr or Ural

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

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1. Make sure the ignition timing is correct 2. Adjust the valves as necessary to ensure proper operation 3. Run the engine to warm it up a bit 4. Adjust the float setting. To do this, remove the carburetors (leave the throttle cables attached), remove the bowl and turn the carburetor upside down (fuel will spill). The float should look like this: Adjust as necessary by bending the float support (#37 in Figure 1). Reinstall Installation and idle adjustment 1. First you must adjust the idle. It is acceptable per the manual to adjust the idle by using the idle adjust screws (11). This usually involves screwing them then backing out 1 to 1.5 turns. Or you can adjust looking at the sliders 2. If installing the carburetors: a. Remove the cover (2) b. Reomve the slider (3) c. Place the throttle cable through the guide (18) with the spring (4) on the cable. d. Route the cable through the slide catch (6) e. Insert the slide assembly into the chamber and make sure it easily slides up and down. Direct the needle (8) into the opening of the diffuser (angled side visible). f. Screw assembly together and verify via throttle movement that slide moves freely. Attach fuel delivery lines to (12). 3. Using the idle set screw (11) raise the slider so the lower edge is 1-2 mm. 4. Assemble to engine using the proper gaskets (paper – felt – paper). 5. Using the locknut (26) adjust the free play of the throttle cable (2-3 mm) 6. Adjust the idle mixture screw – turn in completely then out 1 to 1.5 turns. * Starting using the K68′s (cold weather) 1. Verify fuel flow. Apply choke (pull 52 in Fig1). 2. Using the ticklers (13) allow fuel to enter the bowl until fuel drains from (14) 3. With the ignition off, kick 1 or 2 times 4. Turn ignition on, and as soon as engine is warmed up (maybe sooner) push choke mechanisms to open choke Idle Adjustment (engine running and warm) 1. Remove one of the spark plug caps, and with the cap shorted, adjust (11) to decrease RPM’s to a point of being minimally steady. 2. Adjust the mixture (15) out until RPM’s decrease. Turn in until RPM’s increase slightly. Then turn in screws ¼ to 1/3 revoultion. 3. Do the same for the second carburetor with the first spark plug cap shorted. 4. With both cylinders, adjust each idle (11) on each carburetor the same amount each until it’s at a steady, minimal RPM. Use small changes. (at this point you can use your airflow tool to check). 5. Sharply increase, then decrease throttle. Then engine must return to low RPMs smoothly. If the engine goes below limits, readjust (11) from step 4. Synchronization of the K68 Note: Rather than using the opposite cylinder shorted to test the pull of the live cylinder carburetor, you can use something like a Twinmax connected to the test ports (27 Fig 1). Or, if you have a model without these ports, use a Synchrometer (Appendix 2) held against the face of the carburetor. These tools merely show airflow passing through each carburetor (which is dependent on the position and wear on the slide). If using these tools, it’s not necessary to do the following steps. You wil want to use a throttle guide (Appendix 1), to show airflow at various throttle settings. Using the flow meter of your choice make sure each carburetor is the same at the various throttle settings. 1. Place the motorcycle on the center stand ensuring the rear wheel is suspended 2. Make sure you have large area to work with (safety issues here) 3. Shift into the highest gear with the engine running 4. Short one spark plug cap to the cylinder (using a nail or something in the fins) 5. Increase the speed to 40-50 km/hr 6. Fix the throttle using the throttle (maybe using a throttle stop screw under the throttle housing). 7. Reconnect other cylinder and using the opposite carburetor determine the speed which should be the same as the first. 8. Adjust the position of this slide to achieve the referenced speed using the locknut at the top of the carburetor.

YAMAHA V-Star 650 BIG AIR KIT REMOVAL AND INSTALLATION MANUAL

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Filed Under (Yamaha) by admin on 21-01-2012

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Remove fuel tank and air filter assembly per Yamaha service manual procedures. 2. Remove the air silencer box under the tank. 3. Install supplied BA-2410-00 Needle/Jet kit according to the instructions in the jet kit package being sure to use the Jets and Needle Slot setting called out for the external BAK filter assemble. 4. Reinstall the air silencer box under the tank. 5. Remove the rubber boot from the stock air box. It is glued-in from the factory, but will come loose if gently persuaded. See photo #1 Our install guides provide a basic outline on the proper installation of our products. Further tuning and/or fitment may be required. Barons bears no responsibility on installation costs associated with this product. © 2010 Barons Custom Accessories 7401 Slater Ave. Huntington Beach, CA 92647 (714)274-4065 – Ph. (714)848-0718 – Faxwww.baronscustom.comtech@baronscustom.com Page: 2 BA-2011-00/03/06/07/13/13B BIG AIR KIT – YAMAHA V-Star 650 6. Install the stock rubber boot into your new Baron air filter backing plate with the supplied glue. Squeeze glue liberally into sealing groove in stock rubber boot. See photo #2 Allow glue to set up and dry prior to mounting onto bike

YAMAHA V-STAR 650 CRUZER EXHAUST SYSTEM INSTALLATION MANUAL

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Filed Under (Yamaha) by admin on 28-12-2010

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STOCK EXHAUST SYSTEM REMOVAL 1. This Exhaust system is specifically designed for California models, before continuing be sure it is the correct system for your application. 2. Loosen clamp that connects muffler to front head pipe. 3. Remove cylinder exhaust bolts from rear head pipe that connects rear head pipe to cylinder (save for re- use). 4. Remove bolts that connect mufflers to mounting bracket. Remove complete system. Note: Assistance may be required. Page 1of 4 Y411IN Rev. 1.0 YAMAHA V-STAR 650 CRUZER EXHAUST SYSTEM, CA Model Part #31505 Tools required for installation: 1/2”, 12mm & 10mm wrenches 5mm, 6mm Allen wrenches 5/16″ nutdriver / flat blade screwdriver VANCE & HINES EXHAUST SYSTEM INSTALLATION 1. Check condition of stock exhaust gaskets. Replace if damaged or worn. 2. Install mounting bracket (stamped 370-P) in the original muffler mounting position, using two 8mm bolts (supplied)(Figure 1). 3. Mark outside surface of front and rear heat shields with location of mounting clips that are welded to the inside (Figure 2). Place each heat shield on a non abrasive surface such as a blanket or carpet. Lay each head pipe/muffler onto its respective heat shield (Figure 3). 4. Loosely install each hose clamp by feeding tail end of clamp into heat shield clip (Figure 4). Take note of clamp screw head direction (Figure 3). Screw head should be accessible when system is installed on motorcycle for adjustment purposes. Note: Do not tighten yet. 5. Install T-bolt clamp onto front muffler. Slide muffler onto front head pipe. Slide dog bone shaped nut plate (supplied) inside bracket welded to backside of front muffler. Attach muffler to mounting bracket 370-P using two 5/16″ flange bolts (supplied) engaging dog bone nut plate. Leave head pipe/muffler assembly loose at this time (Figure 4). 6. Using stock Allen bolts, carefully install rear head pipe/muffler assembly into exhaust port. (Assistance may be required). Note: Do not tighten yet. 7. Slide dog bone shaped nut plate (supplied) inside bracket welded to backside of rear muffler

Harley Davidson 6- SPEED CONVERSION KIT FOR BIG TWIN 5- SPEED TRANSMISSIONS INSTALLATION

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Filed Under (Harley Davidson) by admin on 05-03-2012

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5/16 Bolt hole boss clearance This can easily be checked with the trap door gasket. Put the gasket on the dowel pins. AII material of the boss around the hole that “sticks outside” the gasket (60 degrees forward to 60 degree backwards) must be removed (see figure A). Primary fork clearance Place the gasket on the housing and remove material as indicated for clearing the shifter fork (see figure B). WWW . ZODIAC . NL PERFORMANCE PRODUCTS FOR HARLEY-DAVIDSON ® INSTALLATION INSTRUCTIONS FOR 6 SPEED CONVERSION KIT AND 6 SPEED BUILDER KIT speed transmission. Also make sure you have a 1990 or later Factory Service Manual available. Tools The conversion kit should only be used in new or low milage transmissions. If gears or bearings of a used Gear set Removal Refer to the Factory Service Manual Section for Mainshaft and Countershaft removal. When you get to the point of actually sliding the gear set out make sure you properly mark the 5th gear set as described in the Factory Service Manual (for used transmissions only). Further follow the factory removal procedure. Clearance Checks The 6 Speed conversion and builder kit will fit in most OEM or aftermarket transmission housings without may be needed. The following clearances must be checked before assembling the 6 speed transmission. 28-05-2008 We recommend the kits are installed by a qualified mechanic with knowledge of the Harley-Davidson 5 needed are the same as used for a 5 Speed transmission. 5 speed transmission are worn, new ones must be installed, or better, the builder kit should be used. any modification of the housing. However due to casting differences, in some instances some modification
WWW . ZODIAC . NL PERFORMANCE PRODUCTS FOR HARLEY-DAVIDSON ® Pillow block clearance (right side) Make sure there is clearance between the pillow block and the housing. Any clearance is O.K. (see figure C). Fork shaft support clearance Again use the gasket as the template and remove the material as indicated (see figure D). Shift drum end play The end play of the shift drum must be checked prior to final installation. Install the shift drum. Measure the end play with feeler gauges at the right pillow block (see figure E). End play should be between .004″ and .010″, some 1/2″ X 7/8″ 0.008″ thick shims are included to adjust the end play

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