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Discussion Starter #1
Just been fitting a scottoiler to my 955i. Took the tank off and when I came to refit it the manual mentions fitting a hose to the fuel pressure regulator. Thing is there is no hose to be found anywhere and I can't recall taking one off to remove the tank. Can anyone enlighten me. Should I run the bike without anything connected to the fuel pressure regulator?

Thanks in advance.
 

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Nickwiz
How easy is it to install the scottoiler? I've been toying with the idea of getting one but wouldnt look forward to installing it (plus - can you easily hide the oil feed tube? - I can imagine the pipe would look a bit unsightly strapped up on the swing arm)

Cheers
Si
 

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Discussion Starter #4
Its a bit of a fiddle but then its the first time I've taken a 955 to bits so I guess practise makes perfect. (I can strip the old T3 series bikes with my eyes shut)

The resevoir takes some fiddling to get it to fit behid the side panel. The rest is ok. I'll take some pics for you.
 

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Discussion Starter #6
Check out my photo album. I've posted some pics of the oiler fitted for you. The only bit I haven't shown is the vacume pick up under the tank. If you get a Scott oiler make sure you ask em for the triumph T piece for the vacume pipe. It doesn't come as standard.

By the way thanks staklid. was fretting I'd lost the part.

[ This message was edited by: Nickwiz on 2006-11-28 18:51 ]
 
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There should be a hose on it.

underneath the airbox(rear) there should be 2 small tubes
1 drain and 1 for the hose thats conected to the fuelpressregulateur, otherwise your bike can run lean under acceleration .(full throtlle)
and the possibility to suck "dirty" air into the airbox trough the tube.

Goodluck :wink:
 

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Technically we are both right. 1997-2001 has a hose to connect from the air box. 2002 and up has no connection here. It doesn't matter if it is vented to the air box or the atmosphere. It doesn't effect the pump output at all.

[ This message was edited by: Stlakid on 2006-11-29 03:24 ]
 
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Ive got a 2002 Daytona

and there is a hose!
and its affect yours injection also, under great vacuum(fullthrottle) you get a diffrent pressure under the membrame, and it will lift so that the regulator flows its maximum pressure.
connect a fuelpressuregauge and you will see...... :wink:
 

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Discussion Starter #10
Ok I've checked and re checked and I can find nothing connected to the air box that would even remotely connect to the regulator on the fuel pump so who is right? Hang on what the heck I'll phone the factory.

Ok phoned the factory spoke to a chap in their warranty dept. He tells me that the spigot on the regulator valve is purely a vent that vents to atmosphere. On later models a hose may not be fitted. If it is it should run down to the swing arm area and vent to atmosphere.

Guess that clears it up. Why didn't I think of that before. Thanks for the help guys.

[ This message was edited by: Nickwiz on 2006-11-29 08:45 ]
 

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Well we've got it cleared up. Basically it doesn't matter at all! I will disagree that it will effect you fuel pressure if you have one connected to the air box. There will be no vacuum in an air box if it's working! Now if you had it plumed to the intake plenum that would be different or if you had a positive pressure from a turbo or other such device then the air box connection may come into play. For this setup it's just a different place to vent the regulator.

I know mine has NEVER had any connection there and the shop manual states to place the spigot facing down and has no mention of any connection to it.

[ This message was edited by: Stlakid on 2006-11-29 14:19 ]
 
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You are right :chug:

There is almost no vacume in the airbox, so the function of this connection will not work.....so it wil also make no diffrence if it is connected or not...
On cars( and on my previous RSV mille) the use this vacuum line, and yes it's connected to the intake manifold(After the throttlevalve) so it will richen under vacuum.


Hmmm good idea for an expirement :idea:

see what it does when connected to the intake...
 

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Flatslide, The FPRs I've had experiance with generally were:
fixed- a set pressure at all fuel flows
positive- pressure is raised when boost pressure is detected
negative- pressure is raised when low ported vacuum is detected

The Triumph's is the only one I've come across that had a nipple for a hose connection, but nothing connected. HMMM, though I need to look into it more, it might just be a poor man's barometer or altimeter. Less ambient air pressure could lower the fuel pressure and prevent over-rich running. I don't think the D955i's ECU has a barometer to modify the injector pulse width...like I said, needs a little digging.

Brad
 
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Just cheked the manual
and ther is a barometricsensor in the ECU conected whit a hose to the airbox.

so is still dony know what use it is.......to leave the fpr unconected
must be de polutionpolicy or something :ppcn:

[ This message was edited by: Flatslide on 2006-11-30 15:01 ]
 
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