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Author: Subject: R1 Carbs Problem - Aaarghgain!!
Dick Axtell

posted on 24/5/17 at 03:05 PM Reply With Quote
R1 Carbs Problem - Aaarghgain!!

G'day to all those using R1 carbs on car engine. Connected up my R1 carbs, to try and fire up. Uh-Oh!! Fuel seems to be coming out all over the place. My first reaction - "You've connected up to the water coolant/heater inlet!! ". But I think not - (maybe??).

So please can you help me to verify the correct fuel inlet connection? Advice will be greatly appreciated.





Work-in-Progress: Changed to Zetec + T9. Still trying!!

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gremlin1234

posted on 24/5/17 at 03:16 PM Reply With Quote
what fuel pump are you using?
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SJ

posted on 24/5/17 at 04:28 PM Reply With Quote
Also check the float valves. If the carbs have been sitting for a while they can stick open.

Also, as Gremlin1234 suggested you need to use the correct pump, ideally from an R1 but any 600cc+ carbed motorbike pump should do.

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r1_pete

posted on 24/5/17 at 04:29 PM Reply With Quote
Im 99% sure my 5JJ just used gravity feed so you really need a very low pressure pump .5 to 1 psi.....
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Dick Axtell

posted on 24/5/17 at 04:32 PM Reply With Quote
Am using Facet old-style fuel pump. So, I guess that this may well be too "big" for bike carbs? Also have fuel pressure regulator fitted (but no gauge). Will search for alternative bike fuel pumps.

Thanks for all your suggestions. Has anyone found a "universal", or generic fuel pump, which would be suitable?

[Edited on 24/5/17 by Dick Axtell]





Work-in-Progress: Changed to Zetec + T9. Still trying!!

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David Jenkins

posted on 24/5/17 at 05:07 PM Reply With Quote
Your best bet would be to find a bike pump - low pressure, high volume. Originally I tried a Facet with a pressure regulator, but it was just too complicated. A bike pump just works...






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Brian R

posted on 24/5/17 at 05:37 PM Reply With Quote
Fitted bike carbs to a crossflow locost a while ago using one of these pumps. It's been spot on. Correct pressure and self regulating.

FOR HONDA CBR600F CBR 600 F 1995 1996 1997 1998 1999 2000 FUEL PUMP OUTSIDE TANK

[Edited on 24/5/17 by Brian R]

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CosKev3

posted on 24/5/17 at 05:44 PM Reply With Quote
Hi Dick
I've got the R1 pump sat on my bench off my car that the carbs came off
open to offers

Ref the fuel connection it's the one facing down,near enough in the centre of carbs

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r1_pete

posted on 24/5/17 at 06:03 PM Reply With Quote
Any carb bike pump will do you, most are made by Mitsubishi anyway.
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Dick Axtell

posted on 24/5/17 at 07:59 PM Reply With Quote
quote:
Originally posted by CosKev3
Ref the fuel connection it's the one facing down, near enough in the centre of carbs


So I did get it right!

And thanks for all your replies and suggestions.





Work-in-Progress: Changed to Zetec + T9. Still trying!!

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Dick Axtell

posted on 25/5/17 at 04:06 PM Reply With Quote
Fuel Press Regulator

Should I remove the fuel pressure regulator, after fitting the bike fuel pump?





Work-in-Progress: Changed to Zetec + T9. Still trying!!

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CosKev3

posted on 25/5/17 at 04:10 PM Reply With Quote
There is no regulater on the bike,so I would say yeah remove it.
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SJ

posted on 25/5/17 at 04:14 PM Reply With Quote
quote:

There is no regulater on the bike,so I would say yeah remove it.



+1. The bike pump has a built in regulator that switches the pump off when the carb floats are full, so no need for anything else.

Stu

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Dick Axtell

posted on 25/5/17 at 06:28 PM Reply With Quote
Thanks again for your advice.





Work-in-Progress: Changed to Zetec + T9. Still trying!!

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