Harvey wanted the triangle under the seat to remain empty. (The wire coil is the speedo sensor before fitting)

Harvey wanted the triangle under the seat to remain empty. (The wire coil is the speedo sensor before fitting)

The much-modified loom when it arrived

The much-modified loom when it arrived

00 seat tray b

And the same area with a new loom – though in the end we went for new spark units

Harvey’s Honda CB750FA

Harvey’s brat style CB had been in build for two years when it arrived at Rewire Towers. It had a really neat subframe conversion with a bench seat, and a battery hidden in a box welded to the underneath of the frame. But it was also suffering from being very old and tired.

As well as a new loom it eventually received new ignition and charging systems, and the trickest speedo I have yet seen. It’s called a Velona Dark (from Digital Speedos). It looks like a glass ball until you turn the bike on.

Obviously with a bike like this the number one priority is to hide the electrics. There wasn’t much room, so the fuses, reg rec and flasher relay ended up under the tank, and the spark units went in a shallow tray under the seat. The solenoid was a puzzle: after much experimentation it went into the battery box with a lithium battery.

The indicators Harvey chose (also from Digital Speedos) are amazing: smaller than your little finger. Fitting them, and the solenoid in the battery box, involved the help of ace fabricator Toby Snelling.

The carbs on this model of Honda don’t like to be left full of modern fuel for long. Their revenge, if you forget, is to make the bike reluctant to start. Oh what laughs we had trying to sort that little issue out.

Battery box as it arrived, with a normal gel battery

Battery box as it arrived, with a normal gel battery and the solenoid dangling in the fresh air

Battery box with a lithium battery and the solenoid hidden with it

Battery box with a lithium battery and the solenoid hidden with it

The smallest indicators you can imagine. They need a three-pin flasher unit to work

The smallest indicators you can imagine. They need a three-pin flasher unit to work

The very trick Velona Dark speedo/tacho

The very trick Velona Dark speedo/tacho