Fuel reserve light issues

Here be mechanigeeks. Anything technical that is not a teething problem.
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Rusty
50cc
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Joined: Sat Dec 30, 2017 7:31 am
Country: Australia
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Year: 2012
Colour: Black
Model: SMT

Fuel reserve light issues

Post by Rusty » Sat Dec 01, 2018 7:58 am

Hi All,

Riding my 2012 SMT the other day and it ran out of fuel, no warning just suddenly died. Took 19L of fuel, to it was definitely empty (not just the fuel balance hose issue).

Annoyed that the reserve light didn't come on, I spoke with the previous owner who tells me it definitely used to work, but clearly it doesnt now.

After some research I decided the sender unit must be faulty, so I bought a replacement (KTM part 62612045000) and after looking at the part I thought to myself "how hard could it be?"

I've got my pump out of the tank now, but I can't see the old sender on it anywhere, or figure out where it should be installed!

Can anyone out there point me in the right direction?

Thanks in advance
Rusty.
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15436510515934954768543730968692.jpg

arg
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Re: Fuel reserve light issues

Post by arg » Sat Dec 01, 2018 7:38 pm

I believe it is under the top section of the fuel pump.

eagle_awd
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Re: Fuel reserve light issues

Post by eagle_awd » Mon Dec 03, 2018 3:42 pm

Cant really tell from the diagram either (#5)...maybe in that metal tube on the side?
2018-12-03_10-37-10.png

Rusty
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Re: Fuel reserve light issues

Post by Rusty » Tue Dec 04, 2018 8:02 am

Thanks guys

Yeah the diagram didn't really help much when I looked for that, but I did work out in the end where the sensor appears to mount.
20181202_162700.jpg
The spare threaded and untreated holes on the plate match perfectly with the sensor mount bracket and screw that came with the assembly.
There is also a spare terminal at the base of the pump which it appears to connect to.
To assume I have figured it out correctly but time will tell when I fuel it up and go for a ride in the coming week.

The previous owner must have been mistaken about the reserve light previously working, because the sensor was never installed on the pump!

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limeyduffa
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Re: Fuel reserve light issues

Post by limeyduffa » Tue Dec 04, 2018 11:52 am

From my photos of servicing my pump twice, this is the closest pic of the sensor.
1.jpg
The sensor has very delayed reaction. It takes some time for it to react. So, keep that in mind.

Rusty
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Country: Australia
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Re: Fuel reserve light issues

Post by Rusty » Sat Dec 08, 2018 1:40 am

Thanks limeyduffa, that pic matches what my pump now looks like.
Thanks for posting it!

Cheers all.

linehand
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Re: Fuel reserve light issues

Post by linehand » Fri Dec 14, 2018 2:29 am

Wow. Fine job rectifying the problem. Previous owner is obviously a liar. Did you replace the filters while it was out??? The little paper one at the top gets mucked up fast.

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