honda trail ct110 idle jet function diagram

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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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Triumph SU CARBURETORS SERVICING AND TUNING

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Filed Under (Triumph) by admin on 29-10-2010

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Jets: These are made in various sizes ranging from.099 inches to.1875 inches, the larger sizes being used only for racing or very high performance engines. The two sizes most commonly found on production cars are the.090 inch and the.100 inch. The size of the jet will be found stamped on the jet head. The figure “nine”wilt indicate that it is the.090 inch and the figure “one”will indicate the.100 inch jet. When tuninga production car the jets size should be checked to make sure that it is of the size recommended by the manufacturers. Centering of Jet: If for any reason, the jet assembly has been removed, it will be ne cessary to recenter the jet. First, remove the clevis pin at the base of the jet which attaches the jet head to the jet operating lever. Withdraw the jet completely and remove the adjusting nut and spring, then replace the adjusting nut, without its spring, and screw it up toits highest position. Slide the Set into position until the jet head is against the base of the adjusting nut. When this has been done, find out if the piston is perfectly free by lifting it up with the finger and allowing it to drop. If the piston is not entirely free, slacken the jet screw and manipulate the lower part of the assembly, including the projecting part of the bottom half of the jet bearing, adjusting nut, and jet head. Make sure that this assembly is now slightly loose. The piston should then rise and fall quite freely as the needle is now able to move the jet into the required central position. The jet screw should now be tightened and a further check made to determine that the piston is still quite free. When complete freedom of the piston is achieved the jet adjusting nut should be removed, together with the jet, and the spring replaced. Experience has shown that a large percentage of carburetors, which have given trouble has been due to the incorrect centering of jets. Jet Needles— These are made in a great variety of sizes, probably now well over two hundred and fifty, and each type of engine hasaneedlethat has been selected, after very careful tests have been carried out, to give the best all-round performance. Most manufacturers actually give three alternative needles for each type and size of engine, these needles clearly being listed by the manufacturer “Standard”, “Rich”or”Weak”and before tuning is started the needle, which is marked on the shank should be checked against the manufacturer’srecommendation to make quite sure that the right needle is fitted; this is most important.

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HONDA CT110 OWNERS MANUAL

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Filed Under (Honda) by admin on 22-04-2011

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ENGINE OIL Engine Oil Level Check Check the engine oil level each day before riding the motorcycle. The level must be maintained between the upper (2) and lower (3) marks on the dipstick (1). 1. Start the engine and let it idle for a few minutes. 2. Stop the engine and hold the motorcycle in an upright position on firm, level ground. 3. After a few minutes, remove the oil filler cap/dipstick, wipe it clean, and reinsert the dipstick without screwing it in. The oil level should be between the upper and lower marks on the dipstick. 4. If required, add the specified oil up to the upper level mark. Do not overfill. 5. Reinstall the oil filler cap/dipstick, check for oil leaks. CAUTION Running the engine with insufficient oil can cause serious engine damage. TYRES Proper air pressure will provide maximum stability, riding comfort and tire life. Check tire pressure frequently and adjust if necessary. NOTE Tire pressure should be checked before you ride while the tyres are cold. Select the right replacement tire in accordance with the following specifications: Cold tire pressures kPa ( kg/cm2, psi ) Front: 175 ( 1.75, 25 ) Rear : 225 ( 2.25, 33 ) Tire size Front: 2.75 – 17 41P Rear : 2.75 – 17 41P Check the tires for cuts, embedded nails, ore other sharp objects. See your authorized Honda Dealer for replacement of damaged tires or punctured inner tubes OPERATION PRE-RIDE INSPECTION WARNING If the Pre-ride Inspection is not performed, serious damage or an accident may result. Inspect your motorcycle very day before you ride it. The items listed here will only take a few minutes to check, and in the long run they can save time, expense and possibly you life. 1. Engine oil level – add engine oil if required. Check for leaks. 2. Fuel level – fill the fuel tank when necessary. Check for leaks. 3. Brakes – check operation. Adjust free play if necessary. 4. Tyres – check condition and pressure. 5. Drive chain – check condition and slack. Adjust and lubricate if necessary. 6. Throttle – check for smooth opening and full closing in all steering positions. 7. Lights – check that headlight, tail/brake light, turn signals, indicators. 8. Engine stop switch – check for proper function. 9. Battery electrolyte – check the level and add if necessary Correct any discrepancy before you ride. Contact your authorized Honda dealer for assistance if you cannot correct the proble

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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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HONDA CT110 SERIES MOTORCYCLE Cold engine Starting Procedure

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Filed Under (Honda) by admin on 15-11-2011

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Prime the engine before starting by cranking the engine several times with the kick starter. The ignition switch should be OFF, the choke lever Fully ON (A) and the throttle opened slightly. Flooded Engine If the engine fails to start after several repeated attempts, it may have become flooded with excess fuel. To clear the engine, turn off the engine stop switch and lower the choke lever to Fully OFF (B). Open the throttle fully and crank the engine several times with the kick starter. Turn the engine stop switch to RUN and open the throttle slightly; start the engine using the kick starter When service is required, remember that your authorized Honda dealer knows your motorcycle best and is fully equipped to maintain and repair it. The scheduled maintenance may also be performed by a qualified service facility that normally does this kind of work; or you may perform most of the work yourself it you are mechanically qualified and have the proper tools
and service data. • These instructions are based on the assumption that the motorcycle will be used exclusively for
its designed purpose. Sustained high speed operation, or operation in unusually wet or dusty conditions, will require more frequent service than specified in the MAINTENANCE SCHEDULE. Consult your authorized Honda dealer for ecommendations applicable to you individual needs
and use

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HONDA CT110 OWNERS MANUAL Engine Oil Level Check

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Filed Under (Honda) by admin on 10-11-2011

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Check the engine oil level each day before riding the motorcycle. The level must be maintained between the upper (2) and lower (3) marks on the dipstick (1). 1. Start the engine and let it idle for a few minutes. 2. Stop the engine and hold the motorcycle in an upright position on firm, level ground. 3. After a few minutes, remove the oil filler cap/dipstick, wipe it clean, and reinsert the dipstick without screwing it in. The oil level should be between the upper and lower marks on the dipstick. 4. If required, add the specified oil up to the upper level mark. Do not overfill.
5. Reinstall the oil filler cap/dipstick, check for oil leaks

Honda Ct110 Series Engine Oil Level Check

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Filed Under (Honda) by admin on 17-09-2011

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Engine Oil Level Check Check the engine oil level each day before riding the motorcycle. The level must be maintained between the upper (2) and lower (3) marks on the dipstick (1). 1. Start the engine and let it idle for a few minutes. 2. Stop the engine and hold the motorcycle in an upright position on firm, level ground. 3. After a few minutes, remove the oil filler cap/dipstick, wipe it clean, and reinsert the dipstick without screwing it in. The oil level should be between the upper and lower marks on the dipstick. 4. If required, add the specified oil up to the upper level mark. Do not overfill. 5. Reinstall the oil filler cap/dipstick, check for oil leaks.

Yamaha Road Star NEEDLE/ JET KIT INSTALLATION INSTRUCTIONS

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Filed Under (Yamaha) by admin on 10-11-2010

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1. Remove the vacuum slide from the carburetor. 2. Remove the OEM needle, spacer and washers, noting order of assembly. 3. Counting from the top to the bottom, install the new Baron needle clip on groove #4 for 04-07 models and on groove #5 for 99-03 models of the replacement. NOTE: Baron adjustable needle – The top is the blunt end of the needle. 4. Reinstall the OEM spacer and washers as shown in this diagram. 5. Reinstall the vacuum slide along with the diaphragm spring. 6. Reattach the diaphragm cover back and tighten screws. NOTE: Verify that the slide maintains its full range of movement. 7. Drain the fuel from the float bowl and remove the bowl cover. 8. Remove the OEM main jet and replace it with a Barons genuine Mikuni main jet. Install the correct main jet as indicated in JET SELECTION area above on this page. Our install guides provide a basic outline on the proper installation of our products. Further tuning and/or fitment may be required. Page: 2 BA-2420RD NEEDLE/JET KIT – Yamaha Road Star (99-07) 9. Thoroughly clean the inside of the float bowl prior to reinstalling it. 10. Reassemble the carburetor by reversing the order of step #1 through step #10. Use the new cap head allen screws in place of the OEM phillips head screws. 11. Locate the fuel mixture screw – it will either be a screw head or a brass plug. If it is a screw head, skip to step #11c. 11c. If you see a brass plug with a small hole in the center, proceed as follows: With the drill bit, carefully and slowly drill through the fuel mixture plug. CAUTION: The fuel mixture screw is located directly beneath this plug. Be prepared to stop the drill and remove the bit the instant you break through the plug. Insert the self-tapping sheet metal screw into the drilled hole and remove the plug. With air/fuel screw now accessible, use a flat blade screwdriver to turn the screw clockwise until it seats, then carefully turn it counter-clockwise 3 1/2 turns. Refer to step #16 for assistance in fine tuning the setting of the air/fuel adjustment screw. 12. Reinstall the carburetor. We strongly suggest that you attach the throttle cables prior to mounting to intake manifold. 13. Reconnect the fuel line, ensuring the clamp is firmly in place. 14. Reinstall all vent hoses and electrical connectors that were previously removed, checking for any obstructions or blockage. 15. Reinstall the OEM air filter assembly or, if you are installing our Big Air Kit (BAK), follow the instructions that accompany that kit, then continue with next step. NOTES: When the BAK is installed, the vent hose that terminated on the rear of the OEM airbox can be relocated in any safe position that does not kink or pinch it. It is important to verify proper throttle operation before starting the engine.

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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Honda Motorcycle Na vigation Kit

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

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Honda Motorcycle Na vigation Kit Honda Motorcycle Navigation Kit G e n e r i c A c c e s s o r i e s 2 0 0 8 For your peace of mind Honda Genuine Accessories are carefully designed, researched and stringently test ed tot he highest standards. And since they’re all Honda approved you’llknowthat they’rejustastoughand well made as your Honda motorcycle. Please Note -All prices quoted are correct at time of printing and are subject to change without prior notice. y e a r w a r r a n t y GENUINE ACCESSORIES Honda Motorcycle Navigation Kit Model Part Number Description RRP Remarks NAKED CBF 600 08A 40MER800B CONTAINSNAVI GAT ION UNIT COMPONENT, CONTROLLER, £549.99 EARPHONE, MANUAL, MCC AR KIT, UN I TAT TACHM ENT KIT, BATTERY CBF 600 08A 40MER800A CONTAINSNAVI GAT ION UNIT COMPONENT, CONTROLLER, £549.99 EARPHONE, MANUAL, MCC AR KIT, UN I TAT TACHM ENT KIT, BATTERY ON/OFF XL700V 08A 40MFF800 * CONTAINS NA VI GAT ION UNIT COMPONENT, £549.99 Must be combined with quartet harness CONTROLLER, EARPH ONE, MANUAL, 08A 30MFF800 MCCAR KIT, UNI TAT TACH ME NT KIT, BATTERY XL 1000V 08A 40MBT800 CONTAINSNAVI GAT ION UNIT COMPONENT, £549.99 Must be combined with quartet harness CONTROLLER, EAR PH ONE, MANUAL, 08A 30MBT800 MCCAR KIT, UNI TAT TACH ME NT KIT, BATTERY TOURERS/SPORT TOUR ERS DN-01 08A 40MEH800 CONTAINSNAVI GAT ION UNIT COMPONENT, CONTROLLER, EARPHONE, £549.99 Must be combined with quartet harness MANUAL, MC CAR KIT, UNI TAT TACH MEN T KIT, AND BATTERY -CONTAINS 08A 30MEW800 ADDITIONALSTE ERIN G HANDLE C LAMPS FORV ISU AL INTE GRAT ION OF THE COMPONENT NT700V 08A 40MEW800 CONTAINSNAVI GAT ION UNIT COMPONENT, CONTROLLER, EARPHONE, £549.99 Must be combined with quartet harness MANUAL, MC CAR KIT, UNI TAT TACH MEN T KIT, BATTERY

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