Page 1 of 2 12 LastLast
Results 1 to 8 of 16

Thread: Fuel Pump

  1. #1
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Nov 2007
    Posts
    0

    Default Fuel Pump

    Im currently working on a racing hovercraft using a honda cb500 twin cylinder motorbike engine, but we need a fuel pump which a cb500 doesnt have as the fuel is gravity fed.

    I was wondering if anyone knows of a suitable fuel pump that could be used and also how it would fit on the standard wiring loom which i have.

    Also how much would a pump cost?



    Any suggestions and furthur information would be much appreciated

    Thanks



    Loomesy

  2. #2
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Jan 2006
    Posts
    0

    Default Re: Fuel Pump

    there are all sorts of electric fuel pumps out there! some are adjustable flow/pressure, generally as i understand you just need power to it, pos neg. but steady voltage/current so you will need a small bike battery, if there is not already one on your craft!



    I fitted a fuel pump for the lift engine on my sev, it was off ebay, cost five quid, was off a 600cc bike, zx or zr or something like that! i was worried it would pump too much fuel, and blow out the needle valve in the carb bowl, but it just pumps as much fuel as the engine needs and was cheap!



    I have a two way lanyard switch, which has break to make and make to break contacts on the back, when i put the lanyard on, its starts the pump and takes the ignition off ground, pulling off, cuts the pump and makes the shorting cable to ground.





    hope this helps



    jon

  3. #3
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Feb 2006
    Posts
    0

    Default Re: Fuel Pump

    why not use the Briggs & Stratton 35hp pump, it runs of the pulses from the crank case pressure, no wireing, they are cheap 20 ish. from any B&S agent

  4. #4
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Jan 2006
    Posts
    0

    Default Re: Fuel Pump

    dont think that will work with a cb500 four stroke?

  5. #5
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Feb 2006
    Posts
    0

    Default Re: Fuel Pump

    why not?

  6. #6
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Feb 2006
    Posts
    0

    Default Re: Fuel Pump

    the B&S is a 1000cc 4 twin four stroke works all right on it, using an electric pump is a bit like cracking a wallnut with a sledge hammer, sorry if you spent all that time wiring up and needing batterys when a maintaince fee pulse pump would have done the job better

  7. #7
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Dec 2005
    Posts
    0

    Default Re: Fuel Pump

    the small mikuni vacuum pumps are superb and deliver enough for a thirsty, big jetted TZR250 on full chat for 10 minutes (which is about 5-6 litres of fuel) plenty for a CBR500 - fit two if you're unsure



    you can pick them up for 20 ish and service kits are about 6 - i change the membrane once a season to be sure



    http://www.zipnorth.com/index.php?ma...e=index&cPath= 34_77



    the gearbox one is a greater capacity

  8. #8
    Less than 10 posts so far! USER IS NOT AVAILABLE
    Join Date
    Jun 2007
    Posts
    0

    Default Re: Fuel Pump

    I have built and raced craft with 4 strokes and have had great success using bike fuel pumps.From Yamaha FZR 250 600,Honda vrf 400 pumps have all worked well.

Similar Threads

  1. anybody know how to? (fuel related)
    By Mart366 - n/a in forum General Forum
    Replies: 7
    Last Post: 26-Apr-08, 08:57 AM
  2. TZR water pump!
    By Ciaran Cronin - n/a in forum General Forum
    Replies: 1
    Last Post: 6-Sep-07, 06:51 PM
  3. Cheaper fuel
    By sixpackpert - n/a in forum General Forum
    Replies: 3
    Last Post: 20-Apr-06, 05:21 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •