News:

Welcome to the DMF

 

Another fuel pump question

Started by ducpainter, July 03, 2015, 11:47:02 AM

Previous topic - Next topic
Print
Go Down Pages1
User actions

ducpainter

July 03, 2015, 11:47:02 AM Last Edit: July 03, 2015, 12:01:37 PM by ducpainter
It seems that my fuel pump on the Monster is not pumping. I know there have been several threads regarding replacing the vacuum pump with an electric one, but after researching further you really need to pipe in a return which isn't the easiest thing to do on a Monster tank.

I 'could' take mine apart and look it over... :-\

There have been some reports that the pump Ca-Cycleworks sells 'might' be inadequate volume wise for track use as it only puts out about 14l/hour.

The vet found me this one... http://www.dellorto.it/fuel-pumps-3 ...but we're basically flying blind as to whether it would work. You can also ggogle Dellorto P34 pump and translate if the link doesn't work.

Very low pressure, internal pressure regulation, high volume, and rebuildable. It is dual outlet, but that doesn't scare me. It is also about a quarter the price of a stock pump.

Has anyone tried it? Thoughts?
"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”


Speeddog

#1
July 03, 2015, 01:15:29 PM
I've rebuilt several of the OEM pumps with the official kit from Sudco, and had no issues.

That Dellorto pump looks interesting.
It says nominal flow of 55 liter/hr, which is plenty.
100HP on a 4-stroke engine is ~8 gallons/hr.
I'm concerned that they show 125-300cc engines as the application, though.
- - - - - Valley Desmo Service - - - - -
Reseda, CA
(951) 640-8908

~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

ducpainter

#2
July 03, 2015, 01:18:22 PM
Quote from: Speeddog on July 03, 2015, 01:15:29 PM
I've rebuilt several of the OEM pumps with the official kit from Sudco, and had no issues.

That Dellorto pump looks interesting.
It says nominal flow of 55 liter/hr, which is plenty.
100HP on a 4-stroke engine is ~8 gallons/hr.
I'm concerned that they show 125-300cc engines as the application, though.
300cc/cyl...x4 is the way I'm reading it.
"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”


Speeddog

#3
July 03, 2015, 01:33:28 PM
Could be, Google Translate comes up a bit short on clarity sometimes.

It *looks* a bit small to me, in the pic.
But the internals could be a good bit different from the Mikuni, so that's not worth much.

Try it and let us know.  ;D
- - - - - Valley Desmo Service - - - - -
Reseda, CA
(951) 640-8908

~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

ducpainter

#4
July 03, 2015, 01:35:36 PM
Quote from: Speeddog on July 03, 2015, 01:33:28 PM
Could be, Google Translate comes up a bit short on clarity sometimes.

It *looks* a bit small to me, in the pic.
But the internals could be a good bit different from the Mikuni, so that's not worth much.

Try it and let us know.  ;D
Eric's Dellorto rep suggested it.

For the $40ish I just might.
"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”


stopintime

#5
July 03, 2015, 02:10:49 PM
Two stroke / four stroke more likely...
252,000 km/seventeen years - loving it

Speeddog

#6
July 03, 2015, 02:56:49 PM
Sudco says the 'pentagon' pump is 65 liters/hr.
Without knowing the test conditions, not much help.

http://www.sudco.com/Catalog37Digital/index.html#/222

Purportedly $23 for the rebuild kit, and $69 for a pentagon pump.
That's from their online price list sheet which says it's 2012, so YMMV.
- - - - - Valley Desmo Service - - - - -
Reseda, CA
(951) 640-8908

~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

koko64

#7
July 03, 2015, 09:54:21 PM
Id chuck in the rebuild kit. You know it will work.
2015 Scrambler 800

Howie

#8
July 03, 2015, 10:11:29 PM
Quote from: koko64 on July 03, 2015, 09:54:21 PM
Id chuck in the rebuild kit. You know it will work.

Yup. Plug &play.  Price for new ain't bad either.

ducpainter

#9
July 05, 2015, 04:30:49 AM
I'll probably take the Mikuni apart and see what's going on inside.

The check valves might just be stuck from sitting so long.
"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”


koko64

#10
July 05, 2015, 04:26:24 PM
Interested what its like inside after all that time.
My pump was surprisingly not too bad.
2015 Scrambler 800

koko64

#11
July 10, 2015, 05:19:34 PM
What was the outcome?
It work after a good clean?
2015 Scrambler 800

ducpainter

#12
July 11, 2015, 06:34:11 AM
It's on the list. ;)
"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”


silas

#13
July 13, 2015, 05:12:58 AM

The rectangular Mikuni fuel pump Chris sells works great w/ my FCR 41's on 98 M900. Had it 2-3 yrs now, no issues. It has one outlet as needed. I paired it w/ a Pingel manual shut off valve on the right side of the frame & ditched the vacuum fuel tap.


https://ca-cycleworks.com/products/fuel-carbs/fuel-pumps/002-220

Ride fast, ride safe
'98 M900, '92 Yamaha TDM850
Print
Go Up Pages1
User actions