Reserve light ! Is anyone this clever?

[MarkT]

Ok because I've had it done I want to fit my modded cdi and after checking with a few tuning shops it is confirmed that when set up for racing you do loose reserve and sidestand switch! As there is a sensor in the tank is anyone clever enough to work out how to convert this to a light instead of the cdi?

Shot in the dark I know but one tuning place said fit a universal fuel tap but didn't know where from. I googled and come up with stuff I don't understand!

Any good guys on here have any ideas how I could work a reserve?
Cheers
Mark

[Evilchicken0]

Well it should be fairly straight forward.
There's a live feed to the sensor in the tank and it should have some kind of float on it that completes the curciut when it gets to a certain depth.
All you need to do is find one of the wires and rig it back to a bulb the second wire can run to earth, when the float gets low enough it completes the cuircuit and you've got about 10-15miles to find some petrol. You might as well put the bulb in the resevre rocker switch on the fairing

[MarkT]

Yes I was thinking along the same lines, have to study wiring diagram a bit more. I was just unsure if 12 volts goes through the sensor? Thanks EC

[Evilchicken0]

12 volts goes through everywhere ... more or less

[Hogdigerdy Dog]

if the sender wiring has been removed from the cdi then you won't have a 12V feed to it and it won't work and for that matter nor will the reserve switch (as you found out when you ran out of juice)
you could take a feed (from the lighting circuit) to the fuel sender then on to the warning light you want to fit but you might as well put it on the dash as the reserve switch still wont work (not connected to the cdi) and it will just be a warning light (although a pretty handy one )

failing that get a fuel tap with a manual reserve tap that fits and there's loads of them

[Evilchicken0]

The CDI is the bit that's been doctored so I reckon the sender and everything else still works it's just the CDI ignors it.
Test the circuits to see if they're connected

[Hogdigerdy Dog]

The CDI is the bit that's been doctored so I reckon the sender and everything else still works it's just the CDI ignors it.

because it's not receiving a signal ( nill Volts) as it's been disconnected from the cdi,

so you would need to make a new circuit for the reserve system to work
IE: a feed from the light's (because there fused) through the sender to a warning light on the dash

[MarkT]

So if I take a positive feed and send it through the reserve switch then to earth that should be safe?

Thanks

[thunderace]

So if I take a positive feed and send it through the reserve switch then to earth that should be safe?

Thanks

No! You'll blow it up. Slight exaggeration

Positive feed to one side of the reserve switch. Then from the other side you run a wire up to a warning lamp. The other side of the warning lamp is connected to earth.

Do not under any circumstances connect both live and earth directly to the reserve switch.

[MarkT]

Thanks yes I meant that just didn't mention the bulb!!!!