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YB11 Low Fuel Sender
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Gammaboy



Joined: 25 Feb 2016
Posts: 182
Location: Brisbane, Australia

PostPosted: Thu May 23, 2019 12:42 am    Post subject: Reply with quote

Oh yeah, for reference, the bolt spacing on those Guzzi senders is 40mm, don't know what the thread size is for the nut though, wonder if it's the same as my Cagiva mito... The Bimota Flange is M16x1 i believe.
Edit:
Went and roughly measured my Mito sender - looks like a M20x1.5? thread, looks like the Guzzi sender is a slightly longer version of the Mito one.
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firststrike



Joined: 23 May 2010
Posts: 38
Location: swansea

PostPosted: Mon Jul 29, 2019 12:05 am    Post subject: Fuel level sender Reply with quote

Mine was leaking like a good one, took fuel tank off and removed the pump /sender assembly which was in a terrible state. The fuel level sender was in bits. The leaking petrol was actually through the fuel level sender.
I have bought a R6 sender unit which hopefully i will fit this week, i will post up pictures when completed. Looks like there will have to be a bit of modifying to the base plate but this is no problem for me as i have a fabrication/ machine shop at my disposal. Laughing
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The Red Barron, Bimota YB9Sri, yamaha RD500lc, yamaha RD500 lc YZR replica, Ducati 750ss
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Gammaboy



Joined: 25 Feb 2016
Posts: 182
Location: Brisbane, Australia

PostPosted: Mon Jul 29, 2019 1:47 am    Post subject: Reply with quote

R6 sender spacing is 36mm, and to get enough clearance for the lump on the R6 sender you'll have to grind enough plastic out that you'll expose the brass threaded inserts, which is not great.
Depending how much clearance under the sender area you have, am adaptor plate with a gsxr/sv650 sender will work, unfortunately on my SB6 you run into the carbs...
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firststrike



Joined: 23 May 2010
Posts: 38
Location: swansea

PostPosted: Mon Jul 29, 2019 6:02 pm    Post subject: Reply with quote

Hi Gammaboy,
i have already studied what is required, my bike is a YB9Sri, i have to make an adaptor plate in s/s to cater for the o ring from the R6 and just increase the hole size in the Bimota s/s mounting plate assembly along with elongating the R6 mounting holes and sorted. Wink
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The Red Barron, Bimota YB9Sri, yamaha RD500lc, yamaha RD500 lc YZR replica, Ducati 750ss
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Gammaboy



Joined: 25 Feb 2016
Posts: 182
Location: Brisbane, Australia

PostPosted: Tue Jul 30, 2019 1:21 am    Post subject: Reply with quote

firststrike wrote:
Hi Gammaboy,
i have already studied what is required, my bike is a YB9Sri, i have to make an adaptor plate in s/s to cater for the o ring from the R6 and just increase the hole size in the Bimota s/s mounting plate assembly along with elongating the R6 mounting holes and sorted. Wink

I contemplated making an adaptor plate to spin it 90* to keep from grinding into the brass inserts. May still go that way with mine.
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firststrike



Joined: 23 May 2010
Posts: 38
Location: swansea

PostPosted: Sat Aug 10, 2019 12:38 am    Post subject: Fuel level sender Reply with quote

All sorted now, R6 sender unit fitted and working great. Fuel light comes on with around 4.5 litres of fuel left in the tank. When my son gives me some technical assistance in how to post pictures i'll put them up. Very Happy Very Happy We can design and manufacture anything but to get pictures to move from one location to another- defeated. Laughing Laughing
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firststrike



Joined: 23 May 2010
Posts: 38
Location: swansea

PostPosted: Sat Aug 17, 2019 12:57 am    Post subject: Reply with quote

Here are a series of pictures showing the modifications for R6 fuel level sender.


Rough template
Hole punched out of stainless.
Check for size.
Tacked and TIG welded in place.
R6 fuel level sender in place.
Inside view of R6 fuel level sender.
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Gammaboy



Joined: 25 Feb 2016
Posts: 182
Location: Brisbane, Australia

PostPosted: Tue Aug 20, 2019 1:19 am    Post subject: Reply with quote

Aahhhh, that's why it works so well for you - it's not such a great unit for those of us that need to screw it into a plastic tank.
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firststrike



Joined: 23 May 2010
Posts: 38
Location: swansea

PostPosted: Tue Aug 20, 2019 7:55 pm    Post subject: Reply with quote

Hi Gammaboy, yeh that could be a bit tricky trying to fit the sender directly to the plastic tank, not un-doable though. Wink
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The Red Barron, Bimota YB9Sri, yamaha RD500lc, yamaha RD500 lc YZR replica, Ducati 750ss
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Gammaboy



Joined: 25 Feb 2016
Posts: 182
Location: Brisbane, Australia

PostPosted: Thu Aug 22, 2019 12:38 am    Post subject: Reply with quote

firststrike wrote:
Hi Gammaboy, yeh that could be a bit tricky trying to fit the sender directly to the plastic tank, not un-doable though. Wink

Yeah, been looking at a couple of ways to do it - on the SB6 the proximity to the carb balancing nipple on the right most carb is the issue... Otherwise I'd have sorted this by now!
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