Fuel Pump Information

[Jeger]

I am working on a Fuel Injection conversion for a motorcycle and I am going to need a fuel pump. After much time searching I ran across the wonderful pump mounted on this quad.

I already know the pressure and flow ratings

What I need/would like to know is:

---How does it function. Anyone see the insides of this thing?

---Who makes it?

---What else...if anything...is it used on?

---How much current does it draw?

---Is it reliable?

Thanks to anyone who is willing to help. And thanks also for all the great information about the powercommander and related products....this will be helpful to me as well

[LTR450_#67]

Heres what I know.....

---How does it function. Anyone see the insides of this thing? I have taken mine apart once to inspect it and it has the fuel come in on the bottom the pump has a screen/filter type of pickup and pumps the fuel to the TB (throttle body)....Does that explain anything?

---Who makes it? Keihin

---What else...if anything...is it used on? Don't know

---How much current does it draw? Ummm...12volts??

---Is it reliable? I would say it is very reliable.....I think I only seen one ever go bad.


Aaron

[Jeger]

Thanks Aaron,

The biggest help was simply the manufacturer.

It looks like it is a Turbine type pump, which to me means that I might be able run it on a PWM circuit to reduce the load on the charging system and perhaps eliminate having to have a pressure regulator on my bike.

Its good to know they arent crapping out on everyone also....Now if I could just find one to fit my budget....UM free would be good <_<

So we have a Keihin fuel pump that runs just under 42 psi...pressure regulated....

should pump 83ml in 10 seconds with an open fuel line = .498L/min

should draw no more than 5 amps...unless keihin makes a pump not listed on their website.

and it must be pretty rugged....judging from some of the videos I have seen!



Hopefully I will find out that this pump is used for several other applications...that way there will be a better chance for future parts availability....or even a chance to find one at a salvage yard. Hopefully Keihin will cough up this information, but if you know of another application please post it up

If anyone has a pump they can let go let me know. Actually a pump, throttle body, and ecu from this bike might work fairly well for me. Anyone got an r450 graveyard in their garage?

[ltr450mx17]

if you have trouble finding all that for a ltr450, look for a yamaha raptor 700r, there fuel injected also.

[banzairx7]

Bringing back a thread from the dead here. Im also using this pump for an EFI conversion project. I just wanted to add some data to this thread in case anyone else found it in their ramblings like I did.

The pump is a Keihin type "S" and draws 2.4 amps @ 42psi

http://www.keihin-us.com/_media/pdf/...p_techdata.pdf

[shadey]

Quote: Originally Posted by Jeger

Thanks Aaron,

The biggest help was simply the manufacturer.

It looks like it is a Turbine type pump, which to me means that I might be able run it on a PWM circuit to reduce the load on the charging system and perhaps eliminate having to have a pressure regulator on my bike.

Its good to know they arent crapping out on everyone also....Now if I could just find one to fit my budget....UM free would be good <_<

So we have a Keihin fuel pump that runs just under 42 psi...pressure regulated....

should pump 83ml in 10 seconds with an open fuel line = .498L/min

should draw no more than 5 amps...unless keihin makes a pump not listed on their website.

and it must be pretty rugged....judging from some of the videos I have seen!



Hopefully I will find out that this pump is used for several other applications...that way there will be a better chance for future parts availability....or even a chance to find one at a salvage yard. Hopefully Keihin will cough up this information, but if you know of another application please post it up

If anyone has a pump they can let go let me know. Actually a pump, throttle body, and ecu from this bike might work fairly well for me. Anyone got an r450 graveyard in their garage?

What's a PWM circuit and how do you plan on keeping the fuel pressure at a constant

[CQR]

Pulse Width Modulated is my guess.

[shadey]

For the fuel pump?

[CQR]

I would think a FPR would be easier, but I don't know what he's trying to do, or what he's trying to do it to.