how to adjust a carburetor on a 2001 kawasaki kx 85

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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.

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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.

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KAWASAKI TERYX EFI Installation Instructions.

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

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Basic Tuning Adjustments 1. The following instructions are for basic fuel tuning. Modes 1,2, & 3 are allowing adjustments to increase and decrease the amount of fuel the engine needs. Modes 4 & 5 are for advanced tuning only. DO NOT change modes 4 & 5 when doing basic tuning! 2. To help understand how these modes work, you can think of them as if you were working with a carburetor. 3. Remember each time you push the MODE button you will be advancing to the next mode. Push the MODE button once and you are now in mode 1, push the MODE button again and you are now in mode 2 and so on. You only need to be concerned with modes 1, 2 & 3 for basic tuning. Modes 4 & 5 are for advanced tuning ONLY. 4. If you need to go back to the settings that were pre programmed when you purchased the controller, just look at the picture in each mode, the colored square represents where the settings were when you purchased the controller. 5. Looking at the controller you will see eight lights with numbers under them, this is what you need to look at when changing settings. The #1 light on the controller represents the leanest setting. TRINITY RACING DOES NOT TAKE REPONSIBLITY FOR DAMAGES THAT MAY OCCUR DURING OPERATION OF YOUR VEHICLE UNDER IMPROPER JET SETTINGS. IT IS THE FINAL RESPONSIBLITY OF THE OWNER/RIDER TO ADJUST JETTING TO SPECIFIC RIDING CONDITIONS AND ELEVATION BEFORE RIDING. WARNING! 1.877.FAS TOYS 2.Remove both seats 6. Re-install engine cover and seats. 6. Mode 1 green light represents idle & cruise adjustment (i.e. pilot jet). To adjust this setting push the MODE button once and then push the plus or minus buttons to adjust fuel as needed. 7. Mode 2 yellow light represents an additional amount of fuel added during acceleration (i.e. needle position). To adjust this setting, push MODE twice and then push the plus or minus buttons to adjust fuel as needed. 12 34 56 7 8 12 34 56 7 8 8. Mode 3 red light represents more fuel being added during full throttle (i.e. main jet). To adjust this setting push the MODE button three times and then push the plus or minus buttons to adjust fuel as needed. 9. If you are confident about your tuning skills and feel you need to adjust other parameters, see Advanced Tuning. 12 34 56 7 8 Advanced Tuning Adjustments 1. Advance tuning has two modes in which to adjust. They are called mode 4 and mode 5. In basic tuning, you are changing the amount of fuel that the engine receives, but with advance tuning, you will be changing when the fuel will be available. In each mode you can adjust how soon the fuel delivery occurs. 2. Mode 4 yellow light and blue light represent when the fuel delivery is available during partial throttle acceleration. To adjust this setting, push the MODE button four times and then push the plus or minus buttons to adjust fuel as needed. Only the yellow light will be changing.

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HSR Carburetor Total Kits Installation Instructions

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

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Intake Manifold: 1. Install MAP sensor in Mikuni manifold (Twin Cam only). 2. Attach the Mikuni manifold to the engine. Align the manifold before tightening the bolts. The flange surface of the Mikuni manifold should be parallel with the front of the engine’s cam cover. Use a level or angle meter to check this. Tighten the manifold bolts. 3. Attach the rubber flange to the Mikuni manifold with the furnished 5/16″x3/4″ bolts and washers. Choke Cables: Mikuni & Harley-Davidson Route the cable with largest radius bends possible. Check the cable for free-play after installation. If there is no free-play, the engine may run rich and deliver poor performance or low fuel mileage. Harley Cable (Twin Cam Kits: 42-19, 45-4) : 1. Remove the Harley choke cable from the stock carb. 2. Remove the spring and plunger from the cable. 3. Remove the spring and plunger from the Mikuni. 5. Install the Mikuni spring and plunger onto the Harley choke cable. Change nothing else; be sure to use the Harley plastic nut, not the Mikuni nut (See Figure 1). Total Kit Installation Instructions The HSR series carburetors are precise yet durable instruments; however, like any other piece of fine equipment, they require correct installation and reasonable care to assure optimum performance and long life. Extra time spent during installation will pay off in both short and long term performance and reliability. This Mikuni HSR carburetor kit is designed to be a bolt-on application, and as such, is set-up and jetted properly for most applications. However, since Harley-Davidson motors are often highly modified, alternate tuning settings may be required. The Mikuni Tuning Manual helps make jetting alterations and adjustments an easy matter. NOTE: Carburetor Kits not designated as C.A.R.B. exempt, are not legal for motor vehicles operated on public highways in the state of California, or in any other states and countries where similar laws apply. WARNING NOTE: NOTE: WARNING CAUTION NOTE: NOTE: TK-2 6. Install the new assembly into the Mikuni carburetor. Be careful to only gently tighten the plastic nut. 7. Loosen the knurled plastic friction nut behind the choke knob and check for free-play (see Figure 2). Figure 1: Harley nut with Mikuni spring & plunger Figure 2: Choke cable adjustments Mikuni Cable (Evo Kits: 42-8, 45-2 & 45-3) : 1. Remove nut, spring and plunger from the Mikuni. 2. Install the nut, spring and plunger onto the cable. 3. Install the assembly into the Mikuni HSR carburetor. Be careful to only gently tighten the plastic nut. 4. Check for free-play. Adjust the cable as necessary. An optional choke cable mounting bracket is included in the Evo kits for custom installations. Carburetor Installation: 1. Insert the carb fully into the rubber flange, align with engine and tighten the clamp. 2. Slip the fuel hose onto the carburetor’s fuel fitting and secure with the enclosed hose clamp. NOTE: Some Twin Cam installations may require removal of a small amount of fin material from the cylinders to clear the float bowl. Throttle Cables The HSR carburetor uses stock 1990 and later Harley- Davidson cables. However, if your Harley is fitted with some other carburetor, you may need to purchase a set of cables. See your dealer for the correct cable set. 1. Route the throttle cables with large radius curves and so they do not interfere with other components. 2. Screw the cable adjusters together to make them as short as possible. 3. Connect the “close” cable first (see Figure 3). 4. Install the “open” cable next (see Figure 3). 5. Adjust the opening cable until the slide can be opened fully. Snug the adjuster lock nut. 6. Turn the handlebar to the right and adjust the throttle free-play with the closing cable adjuster to approximately 1/8″ (see Figure 4)

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Kawasaki KZ750 Twin Carburetor Installation Manual

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

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The first Kawasaki KZ750 twin was built in 1975 and sold as a 1976 model as a KZ750B1. For the first four years of production (1976-79), the KZ750B1 through B4 shared identical Mikuni BS38 carburetor assemblies. These assemblies are probably the heaviest twin-carb assemblies ever built and have a couple unique features. The biggest oddity is that the Kawasaki version of the BS38 uses a system where both the pilot jet and main jet are screwed into the float bowl. A good bowl gasket is critical because gas is drawn from the jets into the internal passages that lead to the venturi via channels beneath the gasket inside the float chamber. The pilot jets used are standard BS series fare in that they are Mikuni BS30/96 type but the main jets are unique to Kawasaki BS38 carburetor assemblies. They look like very small air jets and are frequently stripped as they require the correct sized small screwdriver to remove

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Kawasaki FI Calibration Tool Instruction Manual

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

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System Function Kawasaki FI Calibration Tool (FI Tool) is developed to modify the mapping of the racing machine to gain operating conditions suitable for the course and the rider’s skill. The following are the available setting functions. Table 1 FI Tool Function Model Name Functions Available Setting Range ’04 ZX-10R ’05 ZX-6RR ’05 ZX-10R ’06 ZX-10R ’07 ZX-6R 1) Adjust the injected fuel rate at acceleration -30 % ~ +30 % 〇 〇 〇 〇 〇 2) Adjust the injected fuel rate of No.1 and No.4 cylinder -30 % ~ +30 % 〇 〇 〇 〇 〇 3) Adjust the injected fuel rate of No.2 and No.3 cylinder -30 % ~ +30 % 〇 〇 〇 〇 〇 4) Adjust the injected fuel rate of primary and secondary injector * -30 % ~ +30 % -10 % ~ +10 % — – — 〇 — – — – — 〇 5) Adjust the ignition timing -15°CA~ +5°CA 〇 〇 〇 〇 〇 6) Adjust the sub-throttle opening angle -50 % ~ +50 % -45 % ~ +45 % 〇 — – 〇 〇 — 〇 — – 〇 7) Adjust the exhaust device opening angle -50 % ~ +50 % 〇 — 〇 〇 — 8) Adjust the all injected fuel rates of all cylinders and operating are a simultaneously -30 % ~ +30 % 〇 〇 〇 〇 〇 9) Adjust the value of engine over revolution limiter 0 ~ +300 rpm -1000 ~ +700rpm -1000 ~+1200rpm — – — 〇 — – — 〇 — – — 〇 〇 — – 10) Set the fuel cut or not at deceleration Use or Not Use 〇 〇 〇 〇 〇 11) Set the sub throttle controlled or not Controlled or Full Open Fixed 〇 — – — – 12) Set the exhaust device controlled or not Controlled or Full Open Fixed 〇 〇 〇 〇 〇 13) Set the Auto Shifter Ignition Cut Length Controlled or not, set Ig. Cut Time by gear range — – 〇 〇 〇 14) Set the Pit Road RPM Limit Controlled or not, set Upper Limit RPM by gear range

2001-2003 XV16 Fuel Pump and Carburetor Removal

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Filed Under (Yamaha) by admin on 31-12-2011

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Disconnect the carburetor fuel line hose at the fuel pump. •Disconnect the fuel pump wire coupler. •Remove the choke cable from fuel pump bracket. •Remove the upper engine mount, leaving the fuel pump attached to the mount. •Disconnect the TPS and carburetor wire couplers.       Disconnect the throttle cables, and then remove the carburetor. NOTE: The idle adjuster can be removed from its bracket without loosening the bracket screws. PAGE 3 of 12 HIDDEN 6mm SCREW 6mm BOLT UPPER ENGINE MOUNT/ FUEL PUMP CARBURETOR PAGE 4 of 12 Right-Hand Footrest Removal: •Disconnect and remove the brake light switch. •Remove the forward-most tie wrap around the brake hose and frame. •Remove the footrest assembly. NOTE: Leave the brake hose attached. Move the hose to the underside of the foot rest mount and support it as necessary so that it is out of the way Cylinder Head Oil Pipe Removal/ Installation: •Slightly loosen all three banjo bolts before removing them to prevent oil line deformation. NOTE: When loosening the upper banjo bolts, hold the line in place using a wrench at the flat surface on the fitting. Air Injection System (AIS) Removal: •Remove the electric starter motor. •Remove the regulator/rectifier assembly. Remove the AIS pipes from the cylinder head, but leave them attached to the AIS assembly. •Remove the three screws with 8mm heads, and then remove the AIS air filter from the right side. •Remove the three Phillips head screws holding    the AIS assembly on the frame. •Remove the AIS assembly from the left side. FOOTREST ASSEMBLY UPPER BANJO BOLT AIS AIR FILTER AIS ASSEMBLY
PAGE 5 of 12 Transfer Case Removal: •Remove the transfer case bracket first. Then remove the outer chrome cover, inner cover, and drive-sprocket nut. NOTE: There is a sealing washer between the inner case and the transfer case at the 8mm stud. Be sure to replace it during re-assembly. •Remove the two chrome oil lines between the engine and oil tank. NOTE: Retain the four O-rings for re-use. •Remove the drive pulley cover and remove the drive pulley nut. •Loosen the drive belt tension. •Remove the drive pulley, inner cover, collar, and O-ring. NOTE: The collar has a bevel on its inside diameter     for the O-ring facing inward and a bevel on the outside diameter facing the pulley. •Remove the drive and driven sprockets with chain as an assembly. •Remove the collar and O-ring. NOTE: Collar has a bevel on its inside diameter that faces inward for the O-ring. •Remove oil tank filler neck. •Remove the relay bracket on the right-hand side. NOTE: Leave the relays connected. Simply move them out of the way to allow room for transfer case removal. •Slide the transfer case out from the right side.

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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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TOYOTA NEW SEAT BELT TONGUE PLATE STOPPER SERVICE PARTS

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Filed Under (Toyota Manuals) by admin on 10-10-2011

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installation procedures are provided to supplement the Repair Manual. MODEL YEAR Avalon 1995 – 2001 Camry 1983 – 2001 Corolla 1980 – 2001 Camry Solara 1999 – 2001 Sienna (Front Seat Belt Only) 1998 – 2001 RAV4 1997 – 2001 4Runner 1992 – 2001 Land Cruiser 1991 – 2001 Tundra 2000 – 2001 Tacoma 1997 – 2000 ECHO 2000 – 2001 Celica 1980 – 2001 Prius 2001 – 2001 Tercel 1981 – 1999 PREVIOUS PART NUMBERCURRENT PART NUMBER PART NAME N/A 73219-02010 Stopper, Tongue Plate (Black)* N/A 73219-02020 Stopper, Tongue Plate (Gray)* N/A 73219-02030 Stopper, Tongue Plate (Beige)* *Use a stopper color that is closest to the seat belt webbing color. OP CODE DESCRIPTION TIME OPN T1 T2 BD0047 Install Seat Belt Tongue Plate Stopper 0.1 73219-020#0 62 12 Applicable Warranty*: This repair is covered under the Toyota Comprehensive Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle’s in-service date. *Warranty application is limited to correction of a problem based upon a customer’s specific complaint

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How To Adjust the Accelerator Pump On the 40mm Mikuni Carburetor

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

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1) The “blue” colored screw in the image is the duration adjustment screw. Underneath the head of the screw is a lock nut and the bracket arm that the screw is threaded into. To decrease the amount of fuel squirted the adjustment screw is turned “clockwise” or in. To increase the amount of fuel squirted the adjustment screw is turned “counter clockwise” or out. To get the max, amount of decrease remove the screw and take the lock nut off of the screw. Then replace the screw into the cam arm, then replace the lock nut underneath the arm on the screw. this gives you another 3/32″ of an inch in which the screw can be screwed in.
2) Turn the adjustment screw fully clockwise or IN. Start your engine, Blip your throttle open, if the engine stutters, (hesitates), it is not getting enough fuel so turn the screw counter clockwise to increase the amount of fuel squirted from the accelerator pump into the carburetor. Keep blipping the throttle and adjusting the screw till the carburetor starts to cough. Stop here and turn the screw back in till the coughing stops. Tighten down the lock nut. This should give you the best throttle response with the least amount of coughing and backfiring out the carburetor. Timing Adjustment Screw This is the “Green” colored screw just above the Blue duration adjustment screw. The” Mucker” said it best,,,,, This upper screw adjusts the “timing” of the squirt. By altering it’s setting, you can advance or delay the onset of the fuel squirt. But probably, it won’t have to be touched

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