Harley-Davidson FLTR/ FLH/ FLHT/ FLHR EFI models 1995-2001 Variable Pressure Fuel Regulator Intallation manual

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Filed Under (Harley Davidson) by admin on 27-04-2012

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1 . Ensure vehicle runs correctly through all rpm ranges and idles correctly before attempting any work. It is highly recommended that a pressure / flow test be carried out before & after installation of the VariReg to determine fuel system condition . Stock HD 300 kPa / 44 psi, VariReg as delivered 360 kPa / 52 psi Note: In some countries gas stations do not “final filter” the fuel & therefore we recommend that the fuel filter canister be replaced every 15,000 klms (10,000 miles). Restriction of the fuel by way of a blocked or partially blocked filter will result in difficulty in tuning or failure to obtain satisfactory results during tuning. Should you experience difficulties in tuning, see Diagnosing fuel filter and pump faults 2. Remove air filter cover, air filter and backing plate. Check Throttle Position Sensor value at completely closed throttle as best performance will be obtained at the nominated settings. This will require backing off the idle screw and cold start idle actuator and screw adjustment as described in the workshop manual. The original T.P.S. values should be recorded for possible future reference. To set TPS values without the HD breakout box see VariReg TPS Setting for Harley-Davidsons The T.P.S. values must be set to 1995 – 1996 175 mV (+/- 25mV) 1997 – 2001 275 mV (+/- 25mV) Record the original TPS value here. ………………..mV YOU MUST ENSURE THROTTLE PLATES ARE COMPLETELY CLOSED AND NO BINDING EXISTS IN CABLES to obtain the correct value setting. 3. Reset idle screws to approximate previous settings, no need to start the engine. 4. Complete full or partial fuel tank removal as described in workshop manual. 5. Remove stock fuel pressure regulator as described in workshop manual and leave Horn removed from vehicle until after tuning, this will allow ease of access to the regulator

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YAMAHA XS650 Garage Carburetor Guide Introduction

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

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Loop the hose around the bottom of the yardstick and secure it with wire or twist ties so that it runs straight up both sides; avoid pinching. Trim the ends to the same length, and cut an 8″ piece from each end. Suck ATF into the line so that it fills the tubing about 8″ high on each side. Splice the end pieces back on with the pilot jets. Remote Fuel Bottle. On OEM carbs with a central synchronizing screw,adjustment (see Section II.) is easiest with the tank removed. Make a remote tank from a 1 qt. plastic bottle. Install a 1/4″ hose barb in the bottom of the bottle and a lawn mower fuel valve in the line (an in-line filter is also a good idea). Attach a wire to the top of the bottle and hang it where you need it. Safety note: many plastics will break down with exposure to fuel. Be sure your material is fuel resistant, and empty the container immediately after use. This item is not strictly necessary. 5twins recommends rough adjustment with the tank removed, using fuel remaining in the float bowls, followed by fine adjustment with the tank in place, reaching in with a long screwdriver. You can also set the tank on a work bench or other elevated surface and run extensions to the carburetor lines. Compressor If you intend to do much mechanical work at all, an air compressor with sufficient capacity to power an impact wrench will pay for itself quickly. For carb cleaning, attach an air gun with a rubber tip.

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