mikuni hsr 42 float adjustment

You search Auto repair manual PDF mikuni hsr 42 float adjustment, if there are search results will appear below. If search results do not exist, please search by others keyword.



  mikuni hsr 42 float adjustment Direct Download speed 5282 Kb/s

  mikuni hsr 42 float adjustment Full Version speed 6162 Kb/s



HSR Carburetor Total Kits Installation Instructions

0

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

download
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)

Incoming search terms:

Mikuni HSR 42/ 45 Installation Instructions

0

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

download
To install, remove the stock carb per Yamaha shop manual procedures. Remove stock throttle cables. Install Mikuni HSR carb into intake manifold and tighten manifold clamp. Install new HSR series throttle cables and adjust cable slack per Yamaha shop manual procedures. Hook fuel line to HSR carb and fasten clamp.* Start motorcycle and fine tune HSR carb for proper running per supplied Mikuni tuning manual. *NOTE: Mikuni HSR series carburetors are designed for gravity-feed fuel systems. You should bypass your stock fuel pump and directly feed your HSR carb right from the fuel petcock. We have noted, though, that you may not be able to get good fuel flow from your Road Star fuel tank in low-fuel situations. You may run your stock fuel pump with the HSR carb, but to do so requires the purchase and installation of an adjustable fuel pressure regulator (set at ½ to 1 lb. of pressure). These are available from most auto parts stores. The stock carb has 2 wires running to the lower rear of the float bowl , these were for a carb warmer, they are not used in this application. Unplug these wires at the main wire harness and retain with your stock carb. The Road Star ignition system uses data from the stock throttle position sensor (TPS) to manage your ignition timing. It is necessary to give the bike this information. You may do so by removing the TPS sensor from the stock carb, leaving it plugged into the main wire harness (the sensor must be fixed to a closed-throttle position), or you may locate the plug for the TPS on the main wire harness and test the leads – you will find one ground, one with .5V and one with 1.5V. Connect the 1.5V to the ground and this will give the bike the same information as stock fully closed throttle.

42MM MIKUNI FLATSLIDE CARBURETOR INSTRUCTIONS

0

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

download
To install, remove the stock carb per Yamaha shop manual procedures. Remove stock throttle cables. Install Mikuni HSR carb into intake manifold and tighten manifold clamp. Install new HSR series throttle cables and adjust cable slack per Yamaha shop manual procedures. Hook fuel line to HSR carb and fasten clamp.* Start motorcycle and fine tune HSR carb for proper running per supplied Mikuni tuning manual. *NOTE: Mikuni HSR series carburetors are designed for gravity-feed fuel systems. You should bypass your stock fuel pump and directly feed your HSR carb right from the fuel petcock. We have noted, though, that you may not be able to get good fuel flow from your Road Star fuel tank in low-fuel situations. You may run your stock fuel pump with the HSR carb, but to do so requires the purchase and installation of an adjustable fuel pressure regulator (set at 1/2 to 1 lb. of pressure). These are available from most auto parts stores. The stock carb has 2 wires running to the lower rear of the float bowl , these were for a carb warmer, they are not used in this application. Unplug these wires at the main wire harness and retain with your stock carb. The Road Star ignition system uses data from the stock throttle position sensor (TPS) to manage your ignition timing. It is necessary to give the bike this information. You may do so by removing the TPS sensor from the stock carb, leaving it plugged into the main wire harness (the sensor must be fixed to a closed-throttle position), or you may locate the plug for the TPS on the main wire harness and test the leads – you will find one ground, one with .5V and one with 1.5V. Connect the 1.5V to the ground and this will give the bike the same information as stock fully closed throttle. The output of the OEM fuel pump is too high and will cause fuel overflow in the HSR carb, resulting in a possible dangerous fire hazard

Incoming search terms:

Harley Davidson 1990 and later HSR Choke Cable Installation Manual

0

Filed Under (Harley Davidson) by admin on 28-02-2012

download
The majority of HSR42/45 installations use the Harley cable. Installation is simple when the installation instructions are followed, step by step. Those steps are: • Remove the stock Harley choke cable assembly. • Remove the spring and plunger from the stock cable. • Remove the Mikuni “Starter Nut” from the HSR. • Remove the Mikuni spring and plunger from the HSR. • Install the Mikuni spring and plunger on the Harley choke cable. • Install the Harley choke cable with the fitted Mikuni spring and plunger into the HSR carburetor. • DO NOT use the Mikuni Starter Nut; discard it. • DO NOT use the Harley spring or plunger; discard them. Note: If you do not have installation instructions, you may download them from the www.mikuni.com website in the “manuals” section. If the Mikuni Starter Nut is fitted to the Harley cable, the choke plunger is held off its seat and the choke is open all the time. If the Harley spring and plunger are used, the plunger does not seal and the choke is open all the time. The result, in both cases, is very poor fuel mileage (30 mpg or less). Another possible cause of poor mileage, rough idle and fouled spark plugs is incorrect cable routing. The stock Harley choke cable is very stiff and may not be fully seated in the metal elbow at the carburetor end of its run. This condition is easily corrected. On occasion, one of these errors may have been made by someone else at another location. The unfortunate mechanic who inherits the task of correcting the rich condition, poor idle and poor fuel mileage may have no clue as to the mismatch of parts. For this reason, we include the photos and text to help you discover if your installation is correct.

Incoming search terms:

HSR Carburetor Total Kits Installation And Tuning Manual

0

Filed Under (Tips and Review) by admin on 31-10-2010

download
1. Disconnect the battery ground wire from the battery. 2. Turn the fuel petcock to the “OFF” position. 3. Elevate the rear of the fuel tank for better access to the carburetor area. 4. Remove the coil, horn or other devices on the left hand side of the engine to allow free access to the intake manifold bolts. 5. Remove the complete air cleaner assembly, including the backing plate. 6. Disconnect any vacuum hoses and the fuel hose from the stock carburetor. 7. Disconnect the choke cable from the frame. 8. Remove the stock carburetor. 9. Evo: remove the stock manifold. 10. Twin Cam: unplug MAP sensor, remove manifold and then remove the MAP sensor from the manifold. Installation: Intake Manifold: Twin Cam only: Install MAP sensor in Mikuni manifold. 1. 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. 2. Attach the rubber flange to the Mikuni manifold with the 5/16″x3/4″ bolts and washers. To ease installation, use liqiud detergent to lubricate the manifold seals. Choke: Evo: We recommend that you use the Mikuni choke cable that is furnished with the carburetor. However, you can use the stock Harley cable (’90-’99 models only) if you follow the Twin Cam choke cable instructions. Twin Cam: 1. Remove the Harley choke cable from the stock carb. 2. Remove the Harley spring and plunger from the Harley choke cable. 3. Remove the Mikuni spring and plunger from the Mikuni carburetor. 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. 6. Install the new assembly into the Mikuni. Be careful to only gently tighten the plastic nut.

Triumph Bonneville Tuning Manual

0

Filed Under (Triumph) by admin on 20-11-2010

download
1. The Float The float bowl acts as a fuel reservoir to meet engine demand. The float is hinged on a pin in the float boss. It rises and falls with the fuel level in the float bowl. The small metal tang integrated in the plastic float supports the float valve, also known as the float needle. As the fuel in the float bowl rises, the float valve is pushed into the valve seat, until it’s high enough to shut off the fuel flow to the bowl. As fuel is used the level in the bowl drops lowering the float which pulls the float valve from its seat, and fills again. Adjusting the height of the float has a big effect on the mixture as a low or high float level makes it harder or easier for the vacuum to suck fuel into the venturi. Differing float levels cause an imbalance which may be perceived as vibration. 2. The Choke This system is referred to as the choke. But that’s a misnomer. When you pull the choke knob, what you’re doing is retracting a plunger that opens a tube connected to the starter jet, allowing additional fuel to enter the venturi just below the vacuum hose nipple. It supplements the pilot system at start up. 3. The Pilot System The primary purpose of the pilot system is to supply the mixture at idle. It continues to supply fuel throughout the entire throttle range, but after about 1/8 throttle is reached the main system starts to put out more of the total mixture, up to full throttle. By adjusting the idle with the big screw on the left side of the carburettors the position of the butterfly is altered, so exposing one or more of the four small holes that are drilled into the venturi, (leading to the pilot jet) just under the butterfly valve, letting more or less air pass the butterfly. Adjusting the pilot screw that’s under the carburettor varies the amount of air premixing with the fuel before it enters the venturi. 4. The Main System Open the throttle and the cable that’s connected to the butterfly valve turns it from vertical to horizontal, so letting more air through the venturi. This increases the vacuum effect that is transferred up through the vacuum drilling in the slide to the diaphragm valve that leads to the diaphragm chamber. The top chamber is separated from the bottom by a rubber diaphragm. The bottom chamber is open to atmospheric pressure from the airbox. When the vacuum in the top chamber rises enough, the constant ambient pressure of the lower chamber helps the diaphragm valve overcome the downward force of the diaphragm spring, so it rises from the ven- turi. As the diaphragm is raised the needle is pulled out of the needle jet, exposing a thinner portion of the needle taper which allows more fuel to rise into the venturi to meet the increased engine demand. The key parts of the main system are shown in the photo below

Incoming search terms:

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

0

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

download
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

Incoming search terms:

HOVELHEAD & IRONHEADXL 42mm Mikuni Carburetor And Manifold Kit INSTALLATION Instructions

0

Filed Under (Tips and Review) by admin on 31-10-2010

download
THROTTLE CABLE ADJUSTMENT A) Rotate the throttle grip to the full open position, look into the throttle bore and see if the throttle valve (slide) opens completely. If the throttle valve does not open completely unscrew the adjuster on the opening cable until it does. This adjustment should be made carefully to assure maximum carburetor performance. After adjustment tighten the adjuster jam nut. B) After adjusting the open cable, adjust throttle freeplay with the closing (idle) cable to approximately 1/8″ an indicated in the following illustration. note It is very important to adjust the cables in the preceding described manner to ensure that the idle cable operates correctly for safety. It must close the throttle completely 2 PLEASE NOTE USE CAUTION PLEASE NOTE SAFETY WARNING pull open cable pull close cable SHOVELHEAD/IRONHEAD XL Installation Instructions Check and make sure that the throttle cables are routed properly by rechecking the throttle play as the handlebars are turned from side-to-side; the amount play should remain consistent. C) After the throttle cables have been adjusted, make sure that all the lock nuts are securely tightened. 5. AIR CLEANER A) The air filter bracket is attached to the crankcase with 1 long bolt, and a bracket-spacer. Removed the crankcase nut located between the tappet blocks & replace it with the enclosed bracket spacer; tighten the spacer securely. B) Remove the stud protectors from the K&N filter and place the two backing plates on the studs. Now slip the the filter onto the carburetor. C) Attach the 2 long brackets to the air filter studs with the enclosed nuts & flat washers, and to the bracket spacer with the enclosed bolt using the lock washers, and flat washers. When the carburetor and air cleaner are properly aligned, securely tighten all of the mounting hardware including the intake manifold clamps. In some cases it may be necessary to bend the brackets slightly to arrive at the correct fit. D) Use the enclosed hose clamps to secure the fuel hose to the petcock, and the HSR carburetor. The screw clamp goes on the petcock end and the spring clamp attaches to the carburetor end. E) Attach the chrome air filter cover with the enclosed socket head screw. 7. CHOKE CABLE INSTALLATION A) Attach the Mikuni choke cable bracket to the original choke cable bracket on the air cleaner stud with the enclose hardware as illustrated

Honda CARBURETOR ADJUSTMENT TOOLS

0

Filed Under (Honda) by admin on 17-12-2011

download
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

Incoming search terms:

HARLEY DAVIDSON PREMIUM SUSPENSION KIT REMOVAL AND INSTALLATION MANUAL

0

Filed Under (Harley Davidson) by admin on 09-03-2011

download
REMOVAL Front Fork Assembly 1. Refer to the XR model section of the service manual and remove the front forks. INSTALLATION Front Fork Assembly 1. Install front forks from kit to motorcycle according to service manual instructions but do not tighten the fork bracket pinch screws at this time. 2. See Figure 1. Measure the distance from the top of upper fork bracket to top of fork assembly. Both sides must be exactly the same and measure 0.388-0.468 inch (9.85- 11.89 mm) above the top fork bracket. Align the adjustment screws inline with the handlebars (see Figure 5). is06083a Figure 1. Fork Installation Height Measurement. NOTE If new pinch screws are not readily available, use a wire grinder wheel to remove all remaining lock patch from original pinch screws, wash screws in clean solvent and dry thoroughly. Apply two drops of LOCTITE® 262 to the first 1/4 in. (6.35 mm) of the end threads. 3. Install pinch screws to upper and lower fork brackets. 4. Verify fork tube installation measurement is 0.388-0.468 inch (9.85-11.89 mm). 5. Tighten pinch screws to 30-35 ft-lbs ( (40.7-47.5 Nm)) See Figure 2. The top edge of reflector should be 1-1/2 inches (38.10 mm) below the lower edge of the bottom fork clamp. 6. Remove the adhesive backing. Place reflector in position and press reflector firmly into place to activate the adhesive. Repeat for reflector on opposite fork. REMOVAL OEM Rear Shock Absorbers 1. Refer to the XR model section of the service manual and remove the rear shock absorbers. INSTALLATION Rear Shock Absorbers 1. See Figure 3. Install the rear shock absorbers according to service manual instructions. The shocks are installed with the external gas reservoir to the rear of the shock absorbers and the thick side of the grommet installed to the frame rail mounts. is06142 Figure 3. Install Thick Side Of Grommet To Frame Rail SUSPENSION ADJUSTMENTS Front Fork Suspension Adjustment Whenever a wheel is installed and before moving the motorcycle, pump brakes to build brake system pressure. Insufficient pressure can adversely affect brake performance, which could result in death or serious injury. (00284a) Adjust both forks equally. Improper fork adjustment can lead to loss of control, which could result in death or serious injury. (00124c) Compression and rebound adjusting valves may be damaged if too much force is used at either end of the adjustment range. (00237a) NOTES Damping is set at the factory for the average solo rider under normal riding conditions. The rider may make adjustments to compensate for individual riding styles and varying road conditions. Evaluating and changing the rebound and compression damping is a very subjective process with many variables and should be approached carefully. The front and rear preload setting will need to be adjusted for the rider’s weight and cargo. This adjustment should be made before the motorcycle is ridden any distance and after changing the overall vehicle weight (adding saddlebags, etc.). If the preload adjustment is correct, and you have the rebound and compression damping set at the factory recommended points, the motorcycle should handle and ride properly. Changes in the load carried requires changes in the preload setting(s). Carrying less weight than was used for setting up the suspension requires decreasing the amount of preload. Increasing the load carried requires adding more preload. The following tools are needed to make suspension adjust- ments. • 5 mm hex key (front fork preload adjustment tool). • Spanner wrench with extension handle (shock absorber preload adjustment). • Screw driver (front fork damping adjustment). 1. Front fork preload adjustment: a. See Figure 4 and Table 1. Using the 5 mm hex key, turn the preload adjuster counterclockwise until it stops. This is the minimum preload setting. b. Turn the preload adjuster clockwise the recommended amount specified for the rider weight

Incoming search terms:

Incoming search terms: