Jump to content


Photo

'Gravity tank' for VFR RC30 project

Started by seansparkle, Feb 22 2012 08:29 AM
fuel pump gravity fuel tank rc30 conversion

  • Please log in to reply
7 replies to this topic

#1 seansparkle

seansparkle

    Club Racer

  • Members
  • PipPip
  • 28 posts
  • Why VFRD?:I have always wanted a VFR since I first saw one in 1989 parked next my (then) brand new NS125R!
    Now just bought one and will be using it for an RC30 replica
  • Location:Derby, UK
  • In My Garage::Honda VFR750FT
    Honda Deauville NT700V,
    Kawasaki ER5

Posted 22 February 2012 - 08:29 AM

Hi All,

Second question from my RC30 replica project,

I want to use an NC30 tank on my VFR750 (4th gen) for my RC30 project (would love an RC30 one but seem to be as rare as rocking horse, er, teeth).

From what I can see teh VFR uses a pressurised fuel system via a fuel pump, the NC30 and RC30 both had a simple gravity type system (pretty sure most of the earlier VFRs did), can I simply ditch the fuel pump and use that type of tank, running the fuel line from the fuel cock to the carbs?

Any help would be welcomed!

Sean

#2 Veefer800Canuck

Veefer800Canuck

    FrankenOwner

  • Forum Moderator
  • 11523 posts
  • Why VFRD?:I have the V-4 disease and there is no known cure except for copious applications of Throttle!
  • Location:Whitecourt, Alberta, Canada, Eh?
  • In My Garage::2010 Honda GL800RR-SP2
    Back in business baby!

Posted 22 February 2012 - 10:46 AM

You may run into problems when the tank gets below half, down to a quarter. It will probably work fine with a full load of fuel, and less so as the tank empties.


The 750s used an external fual pump, sucking out of the tank, so I see no reason why you could not plumb the NC30 tank's outlet into the VFR's electric pump inlet.



We strongly recommend that you use only genuine Honda accessories that have been specifically designed and tested for your motorcycle. We strongly advise you not to remove any original equipment or modify your motorcycle in any way that would change its design or operation. Such changes could seriously impair your motorcycle’s handling, stability and braking, making it unsafe to ride.

#3 seansparkle

seansparkle

    Club Racer

  • Members
  • PipPip
  • 28 posts
  • Why VFRD?:I have always wanted a VFR since I first saw one in 1989 parked next my (then) brand new NS125R!
    Now just bought one and will be using it for an RC30 replica
  • Location:Derby, UK
  • In My Garage::Honda VFR750FT
    Honda Deauville NT700V,
    Kawasaki ER5

Posted 22 February 2012 - 02:00 PM

Brilliant, thanks for that, looks like it's a go-er then!

#4 kgsmotorcycles

kgsmotorcycles

    World Superbike Racer

  • Forum Contributor
  • 523 posts
  • Why VFRD?:V.F.R.D. is simply the only place to be!
  • Location:Isle of Man
  • In My Garage::vfr750

Posted 27 February 2012 - 04:52 PM

Good luck, would be nice to see it work. An ally tank sounds very tasty.

#5 Veefer800Canuck

Veefer800Canuck

    FrankenOwner

  • Forum Moderator
  • 11523 posts
  • Why VFRD?:I have the V-4 disease and there is no known cure except for copious applications of Throttle!
  • Location:Whitecourt, Alberta, Canada, Eh?
  • In My Garage::2010 Honda GL800RR-SP2
    Back in business baby!

Posted 27 February 2012 - 07:23 PM

Article number 1 is the fuel pump, you can see where is sucks out of the fuel tank of the 4th gen via articles 6 and 4.

Posted Image

The pump would not care what bike the tank came off of, so long as the petcock is open, there is enough fuel in the tank, the tank is higher than the pump inlet, the hose size is adequate and not kinked, the tank is properly vented, and the filter is not plugged.



We strongly recommend that you use only genuine Honda accessories that have been specifically designed and tested for your motorcycle. We strongly advise you not to remove any original equipment or modify your motorcycle in any way that would change its design or operation. Such changes could seriously impair your motorcycle’s handling, stability and braking, making it unsafe to ride.

#6 seansparkle

seansparkle

    Club Racer

  • Members
  • PipPip
  • 28 posts
  • Why VFRD?:I have always wanted a VFR since I first saw one in 1989 parked next my (then) brand new NS125R!
    Now just bought one and will be using it for an RC30 replica
  • Location:Derby, UK
  • In My Garage::Honda VFR750FT
    Honda Deauville NT700V,
    Kawasaki ER5

Posted 28 February 2012 - 03:45 PM

Thanks for the reply, that's really good of you to go to that trouble.

#7 Veefer800Canuck

Veefer800Canuck

    FrankenOwner

  • Forum Moderator
  • 11523 posts
  • Why VFRD?:I have the V-4 disease and there is no known cure except for copious applications of Throttle!
  • Location:Whitecourt, Alberta, Canada, Eh?
  • In My Garage::2010 Honda GL800RR-SP2
    Back in business baby!

Posted 28 February 2012 - 07:42 PM

Snow problem. We're here to help a brotha out.



We strongly recommend that you use only genuine Honda accessories that have been specifically designed and tested for your motorcycle. We strongly advise you not to remove any original equipment or modify your motorcycle in any way that would change its design or operation. Such changes could seriously impair your motorcycle’s handling, stability and braking, making it unsafe to ride.

#8 karhawk

karhawk

    World Superbike Racer

  • Forum Contributor
  • 320 posts
  • Why VFRD?:one of the best there is
  • Location:Oakland Ca.
  • In My Garage::75 Fiat X19,82 Fiat 2000 spider,95 Suburban 2WD,and 96 VFR

Posted 31 March 2012 - 11:53 PM

Any body elso running gravity feed for 4th gen? Use the same hose?
Back to Third and Fourth Generation VFR's



Also tagged with one or more of these keywords: fuel pump, gravity fuel tank, rc30 conversion

  1. VFR Discussion
  2. → Enthusiast Discussion
  3. → VFR Models
  4. → Third and Fourth Generation VFR's
  5. View New Content
    6. Rules
swallowtailed
swallowtailed
swallowtailed
swallowtailed