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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Yamaha V-Star 650 Jet Kit REMOVAL AND INSTALLATION MANUAL

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Filed Under (Yamaha) by admin on 16-01-2012

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Remove the vacuum slide from the carburetor. • Remove the OEM needle and spacer, noting the order of assembly. • Counting from the top to the bottom, install the new Baron needle clip on groove #4 of the replacement Baron adjustable needle. • Reinstall the OEM spacer and washer. • Reinstall the vacuum slide along with the diaphragm spring. • Reattach the diaphragm cover and tighten its screws. Note: Verify that the slide maintains a full range of movement! • Drain the fuel from float bowl and remove the bowl cover. • Remove the new cap head Allen screws in place of the OEM Phillips head screws. • Repeat above steps for other OEM main jet and pilot jet, and replace them with Baron’s main and pilot jets. • Thoroughly clean the inside of the float bowl prior to reinstalling it. • Reassemble the carburetor by reversing the order of previous steps. Use thecarburetor. • Locate the fuel mixture plug on each carburetor; it will either be a screw head or a brass plug. If it is a screw head, skip to step c . If you see a brass plug with a small hole in the center, proceed as follows: a. With a 5/32″ drill bit, carefully and slowly drill through the fuel mixture plug for each carburetor. 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. b. Insert a self-tapping sheet metal screw into the drilled hole and remove the plug. 311 #1 Industrial Way – Fallbrook, CA 92028 – USA Phone: (760) 731-1200 Fax: (760) 731-1284 E-mail: tech@baronscustom.com Website: www.baronscustom.com Included in this kit: (2) Mikuni main jets, (2) pilot jets, (2) titanium needles, (2) clips, (8) cap head Allen screws Revision 2.0 c. 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 turns. Refer to final step for assistance in fine-tuning the setting of the air/fuel adjustment screw. • Reinstall the OEM air filter assembly. • Check all vent lines, fuel lines, and linkage for any obstructions or blockage

KTM WP FORK 4860 MXMA CLOSED CARTRIDGE REPAIR MANUAL

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Filed Under (KTM) by admin on 13-02-2011

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Adjustments -Take notice of the position of the compression adjustment 1 ! -Count the amount of clicks by turning the adjustment screw clockwise till fully closed. -Remove the rubber cap out of the axleclamp. -Take notice of the position of the rebound adjustment 2 ! -Count the amount of clicks by turning the adjustment screw clockwise till fully closed. -For the standard position see setting list. Position of the compression and rebound adjustment -Set the rebound position 1 , see KTM-Owners manual. -Assemble the rubber cap. -Set the compression position 2 , see KTM-Owners manual. 1 22-22 Repair manual WP Fork “Closed Cartridge” Art.No.: 3.211.199-E Explanation of the spring preload -Total spring length without the spacers, see chapter inspection of the spring! -Spring length with spacers 1 , see setting list. -Spring with the spacers. 1 . -The spring is assembled in the front fork leg. NOTE: the distance of “B” is less then the length of “A”. A – B = Spring preload A 1 1 B2-23 Air release screw -Place the motorcycle on the stand. NOTE: the front wheel must be lift of the floor! -Unscrew the air release screw 1 of the screw cap on top of the front fork and tighten after approx. 10 seconds the air release screw. Recommended periodic maintenance and inspection of the 4860 SX/SXS/SMR front fork 1 A 100 liter fuel consumption is equivalent to approx. 15 operating hours Clean dust scrapers (after 1 hour) Bleed fork legs regularly – after every cleaning Check the inner tubes on scratches / leakage Visual check of damaging of the outer-tubes / replace if necessary Complete service without disass. the closed cartridge of the fork Complete service including the closed cartridge of the front fork

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BMW R1200RT Sport/ Touring 1100X Kit Installation Manual

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Filed Under (BMW) by admin on 17-12-2010

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Step 1 — Locate ‘mold circle’ indentation on each side fairing panel (Pic 1). With panel mounted on bike, this indentation is center, at rear inside panel edge, and faces inside. Temporarily install bracket as shown in (Pic 2), align bottom bracket hole over indentation and mark for hole. Remove brackets at this time. Step 2 — Remove fairing body side panels. Four screws per side required for removal, see owners manual. Drill a 3/8″ hole at mark. If harness kit has not been installed, do not re-install left side panel until finished unless you remove tank to install harness. Removal of the tank is the best option to route harness from battery area to front of the bike. Step 3 — As required, re-install fairing body side panels. Do not re-install the top factory inner panel Torx Screw yet, as you will re-use this screw to secure the top light bracket mounting hole to the fairing panel. Step 4 — Using 10/32×1/2 screws and black shoulder washers from Hardware package, secure lights to PIAA Ezy-Mount® brackets (See Pics 3 & 4). Right side bracket is stamped ‘EZY-MOUNT’. See note below for Powersports lights. Due to close proximity of the light body to fairing side panel, access to the vertical adjustment screw on the panel side of the light will not be possible after installation. To prepare for this; before installing bracket/light assembly to panel, make sure this screw is tightened so that you can barely move the light body. After bracket is installed, final vertical adjustment can be secured with the inside screw. Torque on this screw is adequate to hold vertical adjustment, and the screw that faces the panel will not come loose. NOTE: WHEN INSTALLING POWERSPORTS LIGHTS, YOU MUST INSERT THE SHOULDER ADAPTER WASHER INTO THE LIGHT FOOT, BEFORE INSERTING SCREW TO SECURE LIGHT FOOT TO BRACKET. THIS ADAPTER CENTERS LIGHT FOOT OVER PEMNUT (TIGHTEN THIS SCREW SECURELY). Step 5 — Insert well nut into previously drilled 3/8″ hole. Place bracket assembly against fairing, aligning top hole with the top fairing mounting position; re-install the factory Torx screw at this location. Adjust as necessary and install the second supplied SS 10/32 x 5/8 Torx screw thru the lower bracket mounting hole to the well nut. With constant pressure on the screw, tighten securely. Constant pressure ensures that the rear expandable section of the well nut captures the back of the plastic inner panel as you tighten the screw. Future removal of fairing panels is now possible with light assembly installed (utilizing the bottom bracket mounting screw), thus re-alignment of lights is not required after normal maintenance.

2005-2007 KTM MOTORCYCLE REPAIR MANUAL

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Filed Under (KTM) by admin on 21-11-2010

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Adjustments -Take notice of the position of the compression adjustment 1 ! -Count the amount of clicks by turning the adjustment screw clockwise till fully closed. -Remove the rubber cap out of the axleclamp. -Take notice of the position of the rebound adjustment 2 ! -Count the amount of clicks by turning the adjustment screw clockwise till fully closed. -For the standard position see setting list. Position of the compression and rebound adjustment -Set the rebound position 1 , see KTM-Owners manual. -Assemble the rubber cap. -Set the compression position 2 , see KTM-Owners manual. 1 2 2-22 Repair manual WP Fork “Closed Cartridge” Art.No.: 3.211.199-E Explanation of the spring preload -Total spring length without the spacers, see chapter inspection of the spring! -Spring length with spacers 1 , see setting list. -Spring with the spacers. 1 . -The spring is assembled in the front fork leg. NOTE: the distance of “B” is less then the length of “A”. A – B = Spring preload A 1 1 B 2-23 Air release screw -Place the motorcycle on the stand. NOTE: the front wheel must be lift of the floor! -Unscrew the air release screw 1 of the screw cap on top of the front fork and tighten after approx. 10 seconds the air release screw. Recommended periodic maintenance and inspection of the 4860 SX/SXS/SMR front fork 1 A 100 liter fuel consumption is equivalent to approx. 15 operating hours Clean dust scrapers (after 1 hour) Bleed fork legs regularly – after every cleaning Check the inner tubes on scratches / leakage Visual check of damaging of the outer-tubes / replace if necessary Complete service without disass. the closed cartridge of the fork Complete service including the closed cartridge of the front fork Dismounting the fork -Place your motorcycle on a stand. -Notice the position of the front fork in the triple-clamps. NOTE: To remove the front fork. Read your KTM Instruction Manual or Workshop Manual. 3-3 Mounting the fork -Clean the innerside of the triple-clamps with brake cleaner. -Slide both fork legs into the triple-clamps. NOTE: Pay attention to the position of the fork legs. Standard riding height! NOTE: The maximum riding height is the level of the second groove! -Tighten the middle bolt of the lower triple clamp to a torque of 17 Nm! -Tighten the first bolt of the lower triple clamp to a torque of 17 Nm! -Tighten the third bolt of the lower triple clamp to a torque of 17 Nm!

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Performance Starts Here RACING CARBURETORS

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

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Mikuni RS Series Radial Flat Slide carburetors represent the first ever aftermarket true high performance carbs offered to the racing public. Designated the RS for radial slide design, these carbs feature such innovations as: large 34, 36 or 38mm smoothbores, excellent throttle response and streetability, adjustable accelerator pump system, lighter more compact design, quick change needle clip, cam-lock carb synchronizing, horsepower improvement of 25% to 30% and competition priced. • Starter System: Provides fuel enrichment for cold engine starting. • Accelerator Pump Adjust Screws: Sets on and off operation of accelerator pump in relation to throttle slide position. • Adjustable Accelerator Pump: Squirts fuel into carburetor venturi when throttle is opened to improve engine response. • Idle Adjustment Screw: Controls engine idle speed. • Throttle Return Spring: A choice of positioning pegs allows adjustment of spring tension. • Genuine Mikuni Jets: Provide for precise fuel metering. • Pilot Air Jet: in conjunction with the Pilot Fuel Screw for tuning of mixture at idle to 1/4 throttle. • Float Bowl Vent: Allows atmospheric pressure into float bowl for fuel flow. • Smooth Throttle Bore/Venturi: Produces the optimum air and fuel mixture flow at all RPMs. • Jet Needle Clip: Has easy adjustment feature for quick tuning. • Accelerator Pump Spray Nozzle: Shoots fuel directly into the intake tract for immediate engine response. • Flat Throttle Valve Design: Provides the strongest signal for precise and instantaneous throttle response

Ducati 916-998 / 748 Variable Pressure Fuel Regulator installation Manual

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Filed Under (Ducati) by admin on 26-10-2010

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1 RACING SERVICES 115 CARLINGFORD RD EPPING SYDNEY 2121 AUSTRALIA Part # EDU001 Type 3 Please note: These instructions refer to Type 3 Ducati VariRegs. Type 3 VariRegs may be distinguished by a hole & groove machined into the end face of the adjustment screw. VariReg -Variable Pressure Fuel Regulator Suitable for:- Ducati 916-998 / 748 all models. The Epicycle VariReg will allow a fuel pressure rate of 300 kPa (stock) to 540 kPa. By increasing the pressure available at the injectors, more fuel will flow thus richening mixtures. The available increase in fuel pressure is sufficient to allow the fitment of performance parts, without the high end lean condition normally experienced with the stock fuel pressure. This lean condition is the result of injectors that are too low in flow rate, and even when switched on continuously, are incapable of delivering the required quantity of fuel. Changes to the fuel mapping may be required when using this product. The increase in fuel pressure is variable by the owner and may be altered at any time as required. The unit comes pre-set at 450 kPa. It should be noted that the VariReg is designed for a maximum pressure of 540 kPa, but pressures in excess of 450 kPa require the fitment of the CORSA style high output fuel pump. ** Under no circumstances should the pressure exceed 450 kPa if using the standard road pump! ** Pressures may be set in the following manner. ** This method should be used as a guide only. Use of a suitable pressure gauge is recommended.** 1 . Rotate the adjustment screw “IN” (clockwise direction) using an 11mm or 7/16″ spanner until the head of the screw is seated against the body. Use a tommy bar in the 5mm hole in the side of the VariReg to prevent rotation of the body

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