Filed Under (KTM) by admin on 12-11-2010
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
Filed Under (Honda) by admin on 17-12-2011
K&L CARBURETOR ADJUSTMENT WRENCHES These tools use tough and accurate bevel gear actuation instead of cable for professional use. The aluminum handle includes index marks for accurate tuning. Sold each. Three types available: 35-9653 Slot-type Pilot Screw Adjustment Wrench for Kawasaki/Suzuki/Yamaha 35-9658 Slot-type Pilot Screw Adjustment Wrench with longer tip for Kawasaki/Suzuki/Yamaha 35-9650 D-type Keihin Pilot Screw Adjustment Wrench for Honda 90-DEGREE 1/4″ HEX DRIVER This gear driven, 1/4″ hex driver set is made of high-grade aluminum and stainless steel. Strongest tool of it’s type on the market. Designed for use on hard-to-reach pilot air screws on inline fours. Can be used with any 1/4″ or 6mm hex bits. 35-7820 90-Degree 1/4″ Hex Driver Set: Includes straight slot, phillips, d-shape pilot screw bit, 6mm hex jet bit & 1/4″ – hex – 1/4″ drive bit. FCR CARB TOOL Set includes three bits – 6mm hex for main jets, long reach straight slot for pilot jets and 3mm allen for float bowl removal. Longer bits make this set ideal for reaching into recessed cavities when adjusting Keihin FCR carburetors. Sold as a set. 35-7978 FCR Carb Tool 12″ DRILL BIT For removal of carburetor plug. (mixture screw plug) 1/8″ bit x 12 inch length. 35-1186 YM-33217-16 JET DRIVER 35-2270 Perfect for removal of jets from small recessed passages
Filed Under (Suzuki) by admin on 09-11-2010
1. Refer to Figure 1. 2. Remove seat. Safety: disconnect battery prior to all wiring modifications LeatherLyke 510 5/1/2009 3. Disconnect wires to turn signals. 4. Remove turn signals and retain hardware for reinstallation. Observe and mark “left” and “right” for reinstallation. Information: Do not remove license plate bracket . 5. Remove license plate. Turn signal bracket must be oriented with flange (side with only 2 holes) on top. 6. Install turn signal bracket behind license plate bracket and license plate using 6 x 35mm pan phil machine screws for the 800 or 6 x 20mm pan phil machine screws for the 1400, 1/4″ flat washers, and 6mm locknuts. Insert black spacer spool between license plate bracket and turn signal bracket. 7. Mount turn signals directly to turn signal bracket using 6 x 10mm hex cap screws and star lock washer. Information: Observe all color-coding of wires and splice one wire at a time. 8. Cut each turn signal wires three inches from end and splice 10 inches of supplied wire. Secure wires to inner fender clips. 9. Follow route of tail light wires and connect wires into harness. 10. Secure wires together behind license plate bracket with tie wrap. 11. Connect battery and test turn signals for function. 12. Install seat. Information: Not all license plate mounts are grounded. In some cases, it may be necessary to run a ground wire to turn signal bracket. WARNING: States may have minimum width requirements on motorcycle turn- signals, so check your local laws. LeatherLyke 510 5/1/2009 SADDLEBAG INSTALLATION 13. Refer to Figure 2. Information: Cover plates are pressed into strut. 14. Remove round cover plate at end of fender mount strut on right side. 15. Remove nut on right rear and replace with 1.2″ hex adapter. If hex adapter is less than flush with the outside of both fender struts, add a 5/16″ flat washer. 16. Assemble 5 x 30mm flathead screw and 5mm mounting spool with chamfer on spool under head of screw. Insert assembly thru 1 1/4″ fender washer for the 1400 or 1″ for the 800. 17. Install spool assembly into previously installed 1.2” hex adapter. Information: Do not remove washer on shock absorber. Hex adapter will protrude 1/4″ beyond fender strut. 18. Remove round cover plate over right rear shock, remove shock absorber nut and install .75″ hex adapter. 19. Assemble 5 x 30mm flathead screw, mounting spool and cup washer with chamfer on spool under head of screw. 20. Install spool assembly into previously installed hex adapter. 21. Insert 5/8” finishing plug into old turn signal hole on right side. 22. Repeat procedures on opposite side
Filed Under (Suzuki) by admin on 22-12-2010
REMOVING THE STOCK EXHAUST SYSTEM 1. Loosenthe mounting bolt and pinch clamp on both left and right hand mufflers. 2. Loosenthe clamp on the crossover tube, located between the two mufflers. 3. Remove the two nuts that mount the front head pipe flange to the cylinder head. 4. Remove the two nuts that mount the rear head pipe flange to the cylinder head. 5. Remove the head pipes using a twisting motion to break the seal at the muffler and to clear the cylinder head. Note : If the exhaust coupler gaskets did not remain in the mufflers, remove them from the head pipes at this time. These coupler gaskets will not be reused in your new exhaust system. 6. Remove the mounting bolt from the left hand muffler. Remove the muffler, again using a twisting motion to seperate the crossover tube and set the muffler aside. (Save the stock mounting hardware for reuse). 7. Repeat step #6 on the the right hand muffler. Set the muffler aside. INSTALLING YOUR NEW VANCE & HINES EXHAUST SYSTEM 1. Check the stock exhaust gaskets to be sure they are in good shape. If you have any doubts as to their condition, replace them. 2. Reinstall the stock head pipes to the engine. Note : Leave the flange nuts loose at this time. 3. Remove the mufflers from their boxes. There are a left and right hand muffler in this system. To define the difference between the left and right mufflers, check the bracket that is welded to the back side of the muffler. Each muffler is stamped with it’s own part number. Part # D500 is the RIGHT muffler and Part # D550 is the LEFTmuffler. 4. Install a three hole mounting bracket to each of the mufflers. Slide one dog bone shaped nut plate under the bracket that is welded to the backside of each muffler. Attach the mounting bracket using two of the 5/16 flange head bolts (supplied), leave them loose at this time. Note : Each muffler bracket has a number stamped on it, #179 bracket is for the left hand muffler and #180 is for the right hand muffler. When the brackets are mounted correctly, the end of the bracket with the single hole should point to the inlet end (small end) of the muffler. Refer to figure 1.
Filed Under (Yamaha) by admin on 21-01-2012
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