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Interpol wiring a fairing

Submitted by michael_wattles on Wed, 05/07/2023
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Commando

Info or tips on a route for wiring and connectors to a 74 mk2a Interpol with fairing would be very welcome. Thanks.

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Submitted by stan_thomas on Wed, 05/07/2023

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Mine, also '74 Mk2A, direct from Somerset&Avon, had a steel plate attached to the fork top nuts that supported the speedo and idiot lights. Looks like someone tried to neaten it up by fixing the speedo to the fairing bracket and moving the idiot light. Nothing even remotely subtle about the wiring: 4 wires into the headlamp shell and 2 wires to each indicator lamp.

You could do a nice job with some PVC sleeving and glue-on cable tie supports but it's a blank canvas for you to play with.

Assuming the plate merely shields wiring below both from wet and from sight then I can think about sourcing one to simplify things further, or get creative and like your idea of gluing cable ties. There are two almost glovebox like recesses that I can't see any obvious purpose for, except perhaps stuffing your gauntlets before issuing a speeding ticket? Thanks.

Submitted by stan_thomas on Thu, 06/07/2023

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Interpol Instrument Plate

Just a piece of 2.5mm (12 gauge) steel plate. I hacked the hole on the left to fit a tacho; originally had blue light switches etc. there. All police equipment had been removed before I got it. Can't remember why I didn't fit standard Commando speedo/tacho holders - perhaps they hit the fairing.

Thinking about it, if you're handy with fibreglass, you could build a nice instrument console into the fairing and hide all the wiring in there while you're at it. And some covers for those recesses would make them useful.

Interpols make great touring bikes. Single carb + Interstate tank = 350 mile range and 100mph top end while staying warm and dry.

 

Thank you Stan for photo. I also saw one online today for €90 but.. I will go with the creative route, no pun intended. I'll have a bundle of half a dozen bullet connectors which can live beside the headlamp shell protected by the fairing, which incidentally didn't come with the bike. The small bracket for the speedo did though, and looks well fabricated so could be 'original.' I have had the bike for 15 years and everything is now mechanically A1, I think but have only recently passed my test so it's time to find out!?

A question regards the lower fairing attachment to the frame down tubes, mine uses robust clips which work OK but I have seen a more involved horizontal tube affair which would add rigidity. Has anyone come across something similar?

I love the look of the fairing and have some graphics in mind, similar to the nosecone of a WW2 P-51 Mustang I think.

 

Submitted by stan_thomas on Sun, 09/07/2023

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Mine had a piece of steel angle running the full width between the fairing inside faces, bolted to the frame tubes by U bolts down near to the front isolastic. Can't remember exactly but I don't think there was anything clever about the way the fairing sides were bolted to the 'cross bar' - just one bolt each side. These days I think I'd have welded a plate to the ends of the bar to spread the load and, maybe, bolted in more than one place.

Thanks again. I'll connect the two clips somehow, maybe with a through bolt of threaded bar and spacer tube, as the clips will have a turning force from wind buffeting.

Carbs were professionally renovated but then left again, and next on the list as dry plugs and difficult starting/dying is the latest issue to prevaricate over, starting with carb cleaner spray on the pilot jets? I've gone over a decade without riding the bike so what's a few more months..

 


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