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Law on Lights?

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JpWard
Renault 5 Driver



Joined: 26 Jun 2006
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PostPosted: 01:32 - 24 Oct 2006    Post subject: Law on Lights? Reply with quote
Hi i just wired my lights so that a separate relay keeps my dim beam on whilst my high is on due to it being darker earlier now and more night riding and was just wondering what the rules come MOT time would be?

I know new bikes seam to have dim on when engine is running regardless but i dont know anything about bikes with twin light set up as i havent needed to know before now but the likes of the R6 with twin lights are they on together or not?? Confused
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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 01:46 - 24 Oct 2006    Post subject: Reply with quote
mot manual wrote:
On twin headlamp systems only one or both headlamp may be illuminated for either dipped or main beam. Each headlamp that can be illuminated on dipped beam must meet the requirement for dipped beam headlamps. Twin headlamps must be mounted either one above the other or symmetrically without regard to any side car and not more than 200mm apart measured from the edge of the reflecting surface. The tester should advise if both headlights should illuminate for either function and only one does so.


Make of that what you will.

For what it's worth, I had twin projector lamps on my supermoto. One of them came on for dip (which was deflected to one side), both were on for full beam and I had a small, seperate daylight running spot. It passed its MOT (although my local tester is a bit more flexible in his interpretation of the rules than some, I KNOW my beam pattern was not legal because they were conical-beam spotlamps and the full beam had a 100w bulb in).
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JpWard
Renault 5 Driver



Joined: 26 Jun 2006
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PostPosted: 02:02 - 24 Oct 2006    Post subject: Reply with quote
Humm well the SZR uses a H1 (DIP/near side) and a H3 (main/offside) beam patterns will be mot proof as they remain untouched from normal although bulbs are PIAA 110's

I thought about the cars that have seporate bulbs like say bmw's which stay on when on full beam but cant find if it would be the same rules on a bike Rolling Eyes
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Kickstart
The Oracle



Joined: 04 Feb 2002
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PostPosted: 09:20 - 24 Oct 2006    Post subject: Reply with quote
Hi

Also watch out for melting the wiring if the load you are pulling is going through the ignition switch (common on Yamahas). Total current draw will increase by 4a or so. More than was enough to melt the ignition switch wiring on my FZ750.

All the best

Keith
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JpWard
Renault 5 Driver



Joined: 26 Jun 2006
Karma :
PostPosted: 10:36 - 24 Oct 2006    Post subject: Reply with quote
Kickstart wrote:
Hi

Also watch out for melting the wiring if the load you are pulling is going through the ignition switch (common on Yamahas). Total current draw will increase by 4a or so. More than was enough to melt the ignition switch wiring on my FZ750.

All the best

Keith


Im no dodgy auto spark i have a separate relay so there is only really 40mA extra load Wink and i might rewire the main to a relay too as it will help the current flow Thumbs Up was supprised not to find relays in the first place though the fact the wiring diagram in the Original Manual has different coloured wires than on the bike i shouldnt be surprised by the "Italian spec" electrics Shocked
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Kickstart
The Oracle



Joined: 04 Feb 2002
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PostPosted: 20:46 - 24 Oct 2006    Post subject: Reply with quote
Hi

Good idea to use a couple of relays. Gives the switchgear and easier time and also likely to give brighter lights as the bike ages.

All the best

Keith
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stinkwheel
Bovine Proctologist



Joined: 12 Jul 2004
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PostPosted: 21:01 - 24 Oct 2006    Post subject: Reply with quote
You might find you need to use a relay with an integral diode for the main beam. I had trouble with earth leakage making the high beam stay on until you switched the lights off altogether then back on again.
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