Please share your secrets! What mods have you made to your TRX?
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dixonj
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by dixonj » Wed Aug 31, 2011 7:08 pm
Here is the info on Kennys fuel tap mod
Hi Its actually very simple I removed the spring from the vaccum diaphram and replaced it with washers to make sure the o-ring seal sealed the back part of the tap then reassembled the vaccum side. I then removed the tap side retainer ring with the ON-PRIME-RES and simply rotated it 90 degrees clockwise so now ON is forward OFF is down and RES is backwards JOB done it really is that simple.
Here are some photos of a fuel tap mod that I have done today
1st remove vacum spring
2nd replce the spring with washers or a 5mm spacer
3rd file off the lug
this is the position for fuel on
reserve
and finally the off position
![Image](http://i179.photobucket.com/albums/w297/multivan25/7th.jpg)
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HansJ
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by HansJ » Fri Sep 02, 2011 3:18 pm
If it is what i think it is, then it's interesting... But to be clear, what is the result of the mod?
IQiokW
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Wombat
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by Wombat » Sat Sep 03, 2011 3:01 am
When my fuel tap goes again I'm just gonna buy a PINGEL Hi-flow unit to go with the FCRs
Bob
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SDN
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by SDN » Sat Sep 03, 2011 7:55 am
HansJ wrote:If it is what i think it is, then it's interesting... But to be clear, what is the result of the mod?
+1????
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SDN
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by SDN » Sat Sep 03, 2011 7:57 am
Another thing, is it just me or have any of you actually ever managed to put tap onto reserve on the move, I've never managed it yet and now just refuel before it ever hits reserve
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dixonj
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by dixonj » Sat Sep 03, 2011 1:00 pm
The reason for this mod is to stop the tap leaking when it becomes faulty. I only posted the pics of this mod as some one asked how to do it on another thread it is a quick and simple fix for a faulty tap that works, it turns the tap into an on/off and reserve tap with on vacum needed.
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fung
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by fung » Sun Sep 04, 2011 5:48 am
SDN wrote:Another thing, is it just me or have any of you actually ever managed to put tap onto reserve on the move, I've never managed it yet and now just refuel before it ever hits reserve
touch wood, i haven't had a drama with my TRiXie's tap yet . . . . and yes i can select reserve on the go . . . woo hoo.......
cheers
fung
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HansJ
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by HansJ » Tue Sep 06, 2011 2:49 am
dixonj wrote:The reason for this mod is to stop the tap leaking when it becomes faulty. I only posted the pics of this mod as some one asked how to do it on another thread it is a quick and simple fix for a faulty tap that works, it turns the tap into an on/off and reserve tap with on vacum needed.
Excellent, i suspected that was the purpose, but it wasn't clear to me at least! No criticism whatsoever!
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Red Rex
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by Red Rex » Tue Sep 06, 2011 7:45 am
SDN , selecting reserve at speed ? No problem ...
Just reach in behind your left knee and the tap is there !!
Rubber side down, Red side up is my preferred riding style.
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slow codger
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by slow codger » Tue Sep 06, 2011 9:47 pm
![Embarassed :oops:](./images/smilies/icon_redface.gif)
Its never been there when I've gone on reserve (last meet!!)
Dave E
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misterdimwiddy
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by misterdimwiddy » Sun Jan 06, 2013 9:24 pm
I am doing the fuel tap mod described here so that I do not need the vacuum line to the tap but have a question about the small spacer that is put in place of the diaphragm spring.
I may be wrong but it appears to me that in the original tap the spring closes off the fuel flow when there is no vacuum provided by the inlet tract.
When the motor is running the vacuum would pull against the spring force and lift the diaphragm allowing fuel to flow past the spigot/O-ring seal on the opposite side of the diaphragm to the spring.
If the spring is removed and replaced with a spacer on what was the vacuum side of the tap, would this not hold the diaphragm in the closed position preventing all fuel flow?
I must be missing something here because the mod obviously works; I just can't understand how it works.
Can anyone explain for me?
Thanks
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Killerwhale
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by Killerwhale » Mon Jan 07, 2013 2:51 am
Wombat wrote:When my fuel tap goes again I'm just gonna buy a PINGEL Hi-flow unit to go with the FCRs
Bob
Anyone checked wich tap to choose, i saw their vacuum one but are there a straight fit for us?
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dixonj
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by dixonj » Mon Jan 07, 2013 11:08 am
misterdimwiddy wrote:I am doing the fuel tap mod described here so that I do not need the vacuum line to the tap but have a question about the small spacer that is put in place of the diaphragm spring.
I may be wrong but it appears to me that in the original tap the spring closes off the fuel flow when there is no vacuum provided by the inlet tract.
When the motor is running the vacuum would pull against the spring force and lift the diaphragm allowing fuel to flow past the spigot/O-ring seal on the opposite side of the diaphragm to the spring.
If the spring is removed and replaced with a spacer on what was the vacuum side of the tap, would this not hold the diaphragm in the closed position preventing all fuel flow?
I must be missing something here because the mod obviously works; I just can't understand how it works.
Can anyone explain for me?
Thanks
Re fuel tap mod replacing the vacuum spring with a spacer or washers is to seal the vacuum part of the fuel tap off this prevents fuel leaking through the vacuum part of the fuel tap and running down the vacuum pipe. if you read the first part of this thread it is explained that you also modify the front of the fuel tap to change the flow through the tap. if i am wrong someone be along to correct me.
have a look at this thread
viewtopic.php?f=37&t=7021&p=71082&hilit ... mod#p70408
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misterdimwiddy
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by misterdimwiddy » Mon Jan 07, 2013 4:29 pm
All is clear thanks.
I now see that the diaphragm is disabled by the spacer and over looked the fact that flow is now redirected by the altered tap orientation.
I'll give it a go.
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ac@39
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by ac@39 » Wed Sep 16, 2015 3:57 pm
seems like a good mod to do whilst i'm at this stage of my build. Think i will also cut down the main fuel pipe inside the tank closer to the reserve, comes with the obvious risk of less reserve but hey ho, needing to turn on reserve whilst leant over on aroundabout isnt a lot of fun.
inspired by san miguel