Motorcycle Fuel Pump
Jun/080
Motorcycle Fuel Pump
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The scooter was received and assembled, now finally to the long awaited moment, starting the scooter. The urge to stick the key in the hole, press the button and hear the engine purr is close to irresistible...
But it must be resisted. Though above may sound ideal, is not the case. Imagine a car that was parked for six months; it may not start at first try. In this case we are talking about a scooter that may have been sitting for 6 or more months in addition to having traveled by sea for 2 or 3 weeks; carburetors love fresh salty marine air.
This article aims at guiding first time scooter owners to properly start their scooter without blowing anything out.
Dos and don'ts:
1. If the scooter is 50 or 150cc, don't try the electric start; at first kick start only
2. Do not, under any circumstance, try to jump start the scooter
3. Avoid using a charger. The engine will recharge the battery when it is started. If a charger is used, insure it is a motorcycle charger set to no more than 2 amps
4. If the scooter is equipped with an alarm, do not try the alarm or the remote start until the scooter started
5. Buy the most expensive fuel and fill the gas tank all the way up
6. Do not use any fuel additives or carburetor cleaner solution
7. Once the scooter is started, be ready to ride it for at least 15 minutes to charge the battery - letting the engine charge the battery is by far the best
Remember that a new battery is very fragile. If it runs all the way down, it may get permanent damaged as well as damage other components such as the fuse, voltage regulator and / or the CDI unit. In order to protect the battery and the other components, all 50cc and 150cc scooters should be first started with the kick start then try the electric start a couple times as described below.
Since most 250cc scooters don't have a kick start, 250cc scooter owners should follow the electric start procedure.
Kick start procedure:
1. Fill the gas tank all the way up with the best gasoline available
2. Put the bike on the center stand
3. Check that the kill switch is pointed towards the circle, not the X
4. If the scooter came with remote, click the UNLOCK two consecutive times
5. Turn the key to the on position
6. Accelerate all the way and keep throttle open of 1 second, repeat 3 times
7. Unfold the kick-start; gently push it down with your foot half way
8. Let the kick start come back up
9. Kick the kick start vigorously 3 or 4 times in a row making sure the starter goes all the way down and comes all the way back up every time
10. Then keep on accelerating all the way (step 6) and kicking all the way a few times (step 9)
11. Do not accelerate while kicking
Try the electric start only AFTER having tried to start the bike as described above with the kick-start.
Electric start procedure:
1. Follow steps 1 to 6 in the kick-start procedure above
2. Hold the rear brake
3. Gently turn the accelerator to pickup the slack; do not accelerate, just hold the slack
4. Press the start button for 3 seconds and let go
5. Accelerate all the way and let go, hold any slack in the throttle
6. Press the start button for 3 seconds and let go
7. Let the electric start motor cool down for 30 or 40 seconds and repeat the steps above one more time.
Overheating the electric start motor may also damage the scooter by blowing the starter motor, the fuse and other electrical parts.
If the bike did not start, do not try the electric start procedure more than 2 times; rather go back to the kick start procedure and repeat it 2 or 3 times. It may take a few tries, most bikes start at the 2nd or 3rd try.
If all else fail:
Some scooters my have a hard time starting. This may be due to several factors. In 90% of the cases, the failure to start is due to no or insufficient fuel getting to the carburetor. The simplest way to check and cure this, is to prime the carburetor manually:
1. Open the seat
2. Unscrew the carburetor access panel screw (usually a single screw)
3. Remove the access panel and locate the carburetor
4. The top of the carburetor looks like a metal dome with 2 screws holding it
5. Remove the 2 screws from the top of the carburetor
6. Put 3 to 4 spoonfuls of gasoline directly inside the carburetor
7. Replace the top of the carburetor and secure with the 2 screws
8. Follow the electric start procedure only if it was not followed more than 3 times; otherwise kick-start
If the scooter does not start after the above, those with limited mechanical knowledge and those who know just enough to be dangerous are encouraged to contact the tech support department of the scooter dealer where the purchase was made or seek advice from a professional motorcycle mechanic.
Chinese scooters have a gravity fuel system. This means that the fuel pump only works when the engine is started. It may take some effort to start the scooter In addition, the battery is brand new and does not contain much charge. It too gets recharged when the engine is running.
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Pulse Fuel Pump $31.99 Mikuni Pulse Fuel Pump Mikuni Pulse Fuel Pumps employ an engine’s fluctuation in crankcase pressure to pump fuel from a remote fuel tank to an engine’s carburetor Rectangular fuel pump with 1 outlet for a single carburetor Flush mounting 14 liters per hour flow rate |
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Fuel Pump Retainer Remover Tool $129.95 Jims Fuel Pump Retainer Remover Tool Use for quick and easy service of fuel filter and other fuel-related parts Removes and installs retaining ring holding fuel pump Heavy-duty construction Made in the U.S.A. |
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Fuel Pump Top Plate Hardware Kit $2.95 Drag Specialties Fuel Pump Top Plate Hardware Kit Kits include the proper amount of hardware to fully replace fuel pump top plate screws. Plastic crush washers included Made in the U.S.A. |
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Fuel System De-Icer $4.28 Maxima Fuel System De-Icer Maxima Fuel System De-Icer eliminates moisture and condensation in snowmobile, ATV, and motorcycle fuel systems. Enables gas to flow freely in severely cold conditions and is completely safe for all fuel system components. Does not contain methanol. Features: Eliminates moisture in fuel systems Guards against rust & corrosion Protects against gas/water emulsion Enables gas to flow freely in cold weather Safe for all gasolines; race or pump gas |
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Accelerator Race Fuel Concentrate $27.99 Torco Accelerator Race Fuel Concentrate A blend of components which transforms the makeup of premium pump gas to closely resemble race fuel Significantly raises the octane of premium fuel (91 octane): 32 oz. mixed into 10 gallons = 102 octane, 32 oz. mixed into 5 gallons of fuel = 105 octane! Will not harm sensitive O2 sensors or catalytic converters Great for watercraft, motorcycle, ATV, snowmobile and automotive use Sold in 32 oz. cans |
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Gas It Fuel Injection Kit $404.99 Roland Sands Designs Gas It Fuel Injection Kit Allows the use of wild custom fuel tanks on 01-05 fuel-injected Delphi models Relocates stock fuel pump, fuel pressure regulator, fuel filter and fuel level sending unit to underside of fuel tank (not included) Includes steel weld-in plate, 3.75" x 8" aluminum manifold, all hardware and instructions Tank bottom must be relatively flat to accommodate port installation Requires vented tank or vented gas cap Made in the U.S.A. For 01-05 H-D models with Delphi fuel injection **Note: Custom fabrication required |
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Fuel Pump $161.99 Fuel Pump; 400 HP; |
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Quickshot 2 Accelerator Pump Cover $85.99 Boysen Quickshot 2 Accelerator Pump Cover The NEW redesigned QUICKSHOT 2 has now pushed solid fuel delivery to the next level. Superior in design to all AP covers, the QS2 accelerates fuel delivery while eliminating troublesome trapped air that can cause bog and hesitation. 25% more fuel capacity plus added bleed capability allows for solid fuel delivery 100% of the time. This accelerator pump cover from Boyesen fits all FCR Keihin carburetors Eliminates hesitation and bog on bikes and ATV's and provides instant response to throttle movements Reduces hot engine stalling Improved low end performance Bolt-on product that requires no modifications |
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Fuel Oil 4-Cycle Top End Racing Lubricant $7.5 A top end fuel lubricant formulated to eliminate wear associated with burning alcohol and low-lead gasolines. Extreme pressure and heat seeking qualities eliminate valve guide, fuel pump, piston ring, and super charger wear. Provides engine rust protection for extended storage periods. Not legal or recommended for highway use. |
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Quickshot 3 Performance Accelerator Pump $107.99 Boyesen Quickshot 3 Performance Accelerator Pump This bolt-on performance accelerator pump cover eliminates bog, improves throttle response and offers hassle free leak jet circuit tuning. Tunable leak jet maximizes volume of fuel and duration of squirt for all conditions Investment cast and finished to precise tolerances 25% more fuel capacity High volume vertical check valve located in the QS3 for precise, consistent fuel metering Stops hesitation and bog Instant throttle response Improved low end performance Fits ALL Keihin FCR carbs Simple bolt-on |
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Fuel Pump by Crown Automotive for Jeep $218.99 Fuel Pump Fuel Pump by Crown Automotive for Jeep |
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Fuel Pump Adapter Ring $149.99 Fuel Pump Adapter Ring; Adapts OEM Fuel Pump To Any Tank; |
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Replacement Fuel Petcock $26.99 IMS Replacement Fuel Petcock A replacement fuel petcock for IMS fuel tanks. |
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Fuel Stabilizer $3.25 Drag Specialties Fuel Stabilizer Created to help prevent fuel-system corrosion, fuel breakdown and gum and varnish formulation on carbureted and fuel-injested engines Maintains fuel freshness even in storage Will absorb moisture Perfect for 2- and 4-stroke engines either with or without a catalytic converter |
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Fuel Line $6.95 Moose Racing Fuel Line This quality made fuel line will not harden or crack Available in 1/4", 3/16", and 5/16" i.d. Fuel line available in 3-foot lengths Choice of clear or black |
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Electric Fuel Pump by Omix-Ada $499.99 Fuel Pump Electric; 19 Gallon; |
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High Flow Fuel Pump Fitting $30.99 High Flow Fuel Pump Fitting; |
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Snow Mask for Fuel Goggles $11.99 Smith Snow Mask for Fuel Goggles Fits Smith Fuel Goggles |
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Fuel Treatment $5.5 Lucas Oil Fuel Treatment Formulated for gasoline, diesel and LPG engines It contains no harmful solvents or alcohol A blend of heat resistant, super slick oils and additives with a high detergent action that cleans and lubricates the fuel system Causes the fuel to burn more efficiently for greater fuel economy and fewer emissions Negates the harmful effects of "reformulated gasoline" especially in older automobiles and 2-cycle engines Use in diesel engines to neutralize the harmful effects of ultra low sulfur diesel fuel This product WILL raise MPG |
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Visor for Rail Fuel Helmet $12.95 Visor for Z1R Rail Fuel Helmet |
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Fuel Door $149.95 Battistinis Fuel Door Machined from 6061 T-6 aluminum Available in black finish Click Here for more Battistinis products |
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Geospace 22003 Aircycle Air-Powered Motorcycle With Pump $11.84 What? No batteries?! How does it work? This little Air-Powered Motorcycle blasts across the floor at scale speeds of over 200 MPH - fueled only by AIR! Simply attach the air hose from the included hand pump to the ""fuel tank"" (actually an air reservoir). After pumping several times, remove the hose, set the AirCycle upright on any hard surface and give it a nudge. Suddenly the compressed air rushes from the reservoir into a viewable cylinder that drives the oversized rubber rear wheel. The AirCycle takes off like a rocket for bursts of up to 100 feet or more with piston-pumping engine sounds ripping through the air. No more batteries to buy; the only fuel needed will be the calories kids burn as they pump up the reservoir with air and chase after the AirCycle! Choose from Red or Green. |
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Geospace 22003 Aircycle AirPowered Motorcycle With Pump $23.08 What? No batteries? How does it work? This little AirPowered Motorcycle blasts across the floor at scale speeds of over 200 MPH fueled only by AIR Simply attach the air hose from the included hand pump to the fuel tank (actually an air reservoir). After pumping several times remove the hose set the AirCycle upright on any hard surface and give it a nudge. Suddenly the compressed air rushes from the reservoir into a viewable cylinder that drives the oversized rubber rear wheel. The AirCycle takes off like a rocket for bursts of up to 100 feet or more with pistonpumping engine sounds ripping through the air. No more batteries to buy; the only fuel needed will be the calories kids burn as they pump up the reservoir with air and chase after the AirCycle Choose from Red or Green. |
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Foot Pump $13.95 Helix Racing Foot Pump Compact pump folds up to save space |
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EFI Fuel Lines $39.95 Drag Specialties EFI Fuel Lines If you can’t get fuel to the injector, you’re not going anywhere. Motorcycle Superstore offers high quality OEM replacement fuel check valve assemblies for H-D EFI models. High-quality OEM replacements Replaces the fuel line from the tank to the fuel rail Includes necessary connectors |
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Auxiliary Fuel Tank $42.99 Motion Pro Auxiliary Fuel Tank For use when tuning a motorcycle with the gas tank removed Includes 4 ft. of 1/4 inch fuel line and an 1/4 inch in-line fuel barb On fuel-injected motorcycles, use a Motion Pro Deluxe Auxiliary Fuel Tank Tank can also be used for refilling transmission oil on some late model MX bikes Holds up to 2000cc or 1/2 gallon of fluid |
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Fuel Line Fitting Cover $35.99 Kuryakyn Fuel Line Fitting Cover Kuryakyn's streamlined two-piece fuel line fitting cover adds a touch of chrome |
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US $4.73






















































