UK Karting - Notice Board (2-Stroke Karting) : Re: rotax wiring loom query

Notice Board (2-Stroke Karting)

Re: rotax wiring loom query
Posted by 'Andrewrr' on 02 Sep 2009 @ 10:57

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AndrewrrJoined: August 2001
Total Posts: 1
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One of the things wire has a habit of doing is losing voltage as the electrickery passes along it.

It loses voltage along the positive lead on a Max because it goes from the battery positive terminal, along up to the switch and back down to the coil.

The negative lead from the battery trails around the loom which is designed to be installed in various methods and is therefore unneccesarily long.

Now with both these voltage paths contributing to the voltage drop, not much but enough voltage can be lost to affect the coil operation at high revs.

Sound familiar?

Yes...... Rotax brought out a new coil with more windings to give a better response at higher demand.

Now if you connect the negative of the battery directly to the coil, you cut out the loss the earth lead in the loom induces.

If you connect the positive directly to the coil as well, you eliminate almost all the losses.

Except you can't turn the ignition off :(

I don't know if you can mount the ignition switch right near the coil and put your blue arrow next to it and still be within the regs?

Simples no?

Message Thread:

rotax wiring loom query by 'adey8ball' (01 Sep 2009 @ 15:05)

Re: rotax wiring loom query by 'raceinstructor' (01 Sep 2009 @ 18:17)

Re: rotax wiring loom query by 'Andrewrr' << You are here!

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