oem carburetor for 1988 fxrs

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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)

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

HONDA ATV Carburetor Repair Kits Installation

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Filed Under (Honda) by admin on 21-12-2011

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ATV Carburetor Repair Kits Complete kits to rebuild one OEM carburetor. Each kit contains necessary gaskets/o-rings, needle valve or needle valve set, and jets. Made in Japan. Note: Check all parts before installation. Honda Model Year Order No AT C70 78-85 025-001 AT C90 70-71 025-003 ATC90K1/K2/K3 72-75 025-003 AT C90 76-78 025-003 TRX90 Fourtrax 90 93-98 025-084 ATC110 79-83 025-005 ATC110 84-85 025-061 ATC125M 84-85 025-062 TRX125 Fourtrax 85-86 025-050 TRX125 Fourtrax 87-88 025-063 ATC185 1980 025-009 ATC185S 81-83 025-009 AT C200 81-82 025-008 AT C200 1983 025-009 ATC200E Big Red 82-83 025-064 ATC200ES Big Red 1984 025-064 AT C200M 84-85 025-064 AT C200S 84-86 025-065 AT C200X 83-85 025-012 AT C200X 86-87 025-014 TRX200 Fourtrax 200 90-91 025-066 TRX200D Fourtrax 200 Type II 1991 025-066 TRX200D Fourtrax 200 Type II 92-93 025-067 TRX200D Fourtrax 200 Type II 94-97 025-068 TRX200SX Fourtrax 87-88 025-069 ATC250R 81-82 025-017 ATC250R 83-84 025-018 AT C250R 1985 025-019 ATC250ES Big Red 85-87 025-029 AT C250SX 1985 025-070 TRX250 Fourtrax 250 1985 025-071 TRX250 Fourtrax 250 86-87 025-072 TRX250EX Sportrax 250EX 01-04 025-085 TRX250R Fourtrax 250R 86-87 025-060 TRX250R Fourtrax 250R 1988 025-073 TRX250X 91-92 025-074 TRX300 Fourtrax 300 1988 025-075 TRX300 Fourtrax 300 91-92 025-076 TRX300 Fourtrax 300 93-95 025-078 Honda Model Year Order No TRX300EX Fourtrax 300EX 93-98 025-081 TRX300FW Fourtrax 300 4×4 1988 025-075 TRX300FW Fourtrax 300 4×4 91-92 025-076 TRX300FW Fourtrax 300 4×4 93-95 025-078 AT C350X 1985 025-035 TRX350 Fourtrax 4×4 86-87 025-079 TRX350FE Fourtrax Rancher 4×4 ES 00-03 025-082 TRX350FM Fourtrax Rancher 4×4 00-03 025-082 TRX350TE Fourtrax Rancher ES 00-03 025-082 TRX350TM Fourtrax Rancher 00-03 025-082 TRX350D Fourtrax Foreman 4×4 87-89 025-079 TRX400FW Fourtrax Foreman 95-00 025-080 TRX450ES Fourtrax Foreman ES 98-01 025-083 TRX450FE Fourtrax Foreman ES 02-03 025-083 TRX450FM Fourtrax Foreman S 02-03 025-083 TRX450S Fourtrax Foreman S 98-01 025-083 TRX500FAFourtrax Rubicon 01-04 025-086

HARLEY DAVIDSON BIG TWIN SPIGET MOUNT CARBURETOR INSTALLATION MANUAL

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Filed Under (Harley Davidson) by admin on 26-03-2012

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A. BEFORE INSTALLATION OF YOUR NEW ZENITH CARBURETOR, NSPECT THE RUBBER MANIFOLD SEAL FOR NICKS,CRACKS, OR DEBRIS. APPLYING A LIGHT FILM OF PETROLEUM BASED LUBRICANT AROUND THE INSIDE LIP OF THE RUBBER SEAL WILL ALLOW THE CARBURETOR TO SLIP INTO PLACE EASIER. B. BEFORE ACTUAL INSTALLATION OF UNIT INTO MANIFOLD, THROTTLE CABLES SHOULD BE HOOKED TO THETHROTTLEWHEEL.MAKESURETHATTHE PULL CABLE IS LOCATEDPROPERLY TO OPEN THE THROTTLE PLATE (IN SOME APPLICATIONS THROTTLE CABLE SLACK MAY NEED TO BE ADJUSTED FOR PROPER HOOKUP AND OPERATION) SEE FIG. #1 C. AFTER THROTTLE CABLES ARE PROPERLY HOOKED UP,UNITCAN BE INSERTED INTO MANIFOLD. MAKE SURE THAT UNIT IS FULLY SEATED. WITH CARBURETOR SEATED INTO MANIFOLD AND FUEL LINE HOOKED UP TO FUEL INLET, INSTALL CHOKE CABLE AND HOOK TO CHOKE LEVER. PLACE AIR INTAKE GASKET ON END OF CARBURETOR, NEXT PLACE INTAKE ADAPTOR OVER INTAKE GASKET. SEE FIG#2 ZENITH MOD.16P12 SPIGET MOUNT CARBURETOR -HARLEY DAVIDSON ™ BIG TWIN INSTALLATION INSTRUCTIONS FIG. # 1 FIG. # 2 D. WITH ADAPTOR IN PLACE, LOCATE THE STOCK AIR BOX OVER THE ADAPTOR, UTILIZING THE STOCK AIR BOX GASKET (THERESHOULDBENO GAPS BETWEEN ADAPTOR, AIRBOX OR CARBURETOR WHEN PROPERLY INSTALLED) STAND-OFF SPACERS PROVIDED ARE TOBEPLACEDBETWEENAIR BOX& ENGINE HEADS BEFORE INSTALLING THE VENT/RETAINING BOLTS. FOR EVALUATION ENGINES STOCK VENT BOLTS CAN BE USED WITH LARGERI.D. SPACER PROVIDED. SEE FIG#3 E. WITH AIR BOXSECURELY IN PLACE, INSTALL THE AIR FILTER COVER RETAINING BRACKET AND FILTER USING THE STOCKBOLTS, AND REPLACE AIR FILTER COVER AND SECURE WITH STOCK BOLT. SEE FIG#4 F. AFTER INSTALLATION IS COMPLETE AND FUEL FLOW HAS BEEN RE-ESTABLISHED, CHECK FOR ANY LEAKS BEFORE STARTING ENGINE. H. AFTER STARTING ENGINE, SOME ADJUSTMENTS OF IDLE AND MAIN JET MAYBE REQUIRED FOR PROPER OPERATION. AFTER ADJUSTMENTS HAVE BEEN MADE AND WITH ENGINEAT IDLE, TURN WHEEL FULLYTOLEFTANDRIGHT.ANYCHANGEIN IDLE SPEED INDICATES THROTTLE CABLES ARE TOO TIGHT AND MORE SLACK MUST BE PROVIDED.

1987 to Current Harley Davidson Softail (FLST Only) Motorcycle Trike Conversion removal and Installation Guide

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Filed Under (Harley Davidson) by admin on 03-11-2010

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Removal of Original Parts Secure and raise motorcycle 9 to 10 inches using a quality motorcycle lift. Remove the following from the vehicle. See OEM manual for detailed instructions. Items to be retained for reinstallation after modification are noted. • Seat (to be re-installed without modification). • Left and right saddle bags (if so equipped). • Left and right rear crash bars, saddlebag rails (if so equipped). • Left and right passenger foot rests (to be re-installed without modification) • Complete exhaust system (to be replaced with new system). • Rear wheel NOTE: Prior to removing rear wheel, depress foot brake and secure in down position (e.g., zip-tie to floor board). This will prevent fluid flow when rear brake caliper is removed • Remove Rear Caliper (disconnect brake line at caliper) NOTE: Cap line to prevent introduction of dust / debris into line. Remove caliper. • Rear Drive Pulley (1987-99 models to be re-installed without modification). • Rear Fender (2000 and newer models, fender mount plates to be reused). • Swing Arm NSTALLING TRIKE CONVERSION KIT 3.1 Sprockets and Drive Belts Specifications See following table for belt installation (1987-99 will use a 4 tooth longer belt) Note : See OEM manual for belt replacement procedure. Year Drive Sprocket OEM Belt New Belt / Sprocket 1987-92 70 T 132 T 136 1993-94 61 T 128 T 132 1995-99 65 T 130 T 136/70TOEM 2000-06 Champion Sprocket, 70 T 135 T Use OEM 2007 Up Champion Sprocket, 66 T Use OEM 3.2 Install Swing Arm É Noting size and location of bolts, remove Cross Assembly from Champion Swing Arm. Do not discard hardware. Figure 1 3.2.1 1987-99 Model Years • Remove bearings from OEM Swing Arm using OEM shop tools and hydraulic press. Note : Although original bearings can be re-used, it is HIGHLY recommended that NEW bearings be installed to Champion Swing Arm a. b. Press bearings into Champion Swing Arm in the same way as the OEM Swing Arm. Using OEM Spacer Tube and supplied washers (four ¾” flat washers), install Champion Swing Arm using OEM bolt, outside washers and nut. Do not torque pivot bolt nut at this time. Figure 2 Note : Insure belt path is over and under Swing Arm pivot. c. d. Replace cross assembly and hardware (previously removed in step 3.2) to Champion Swing Arm. Note that the 2 upper left hand side bolts are countersunk. Torque pivot bolt to OEM specification