LMIV wiring diagram? |
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Bentombed
Falcone Joined: 11 Sep 2018 Location: Brisbane Status: Offline Points: 35 |
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Posted: 03 Feb 2019 at 04:31 |
Hi all
i searched through the forum before posting and could not find one - does anyone have the LMIV wiring diagram available? i'm trying to troubleshoot a missing horn and a front brake light, and i'm going nowhere. any help greatly appreciated
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ride fast, live slow
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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Can't see the IV, but the V is here. Not sure which other model would be nearest, but have a look through this list, courtesy of Carl Allison.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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Bentombed
Falcone Joined: 11 Sep 2018 Location: Brisbane Status: Offline Points: 35 |
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thank you - now to find the the front brake light switch on the bike!
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ride fast, live slow
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Ken-Guzzibear
Moderator Group Joined: 13 May 2014 Location: Sileby Leics Status: Offline Points: 9454 |
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You front brake light switch can be in different places depending on model, Some newer bikes it is a wee micro switch at the lever, older bikes it is a hydraulic switch look between the front fork yokes the hydraulic switch is quite large round at a junction follow hydraulic hose up from caliper hope that helps
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The Older i Get, The Better I Was
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Chris950s
Senior Member Joined: 03 Nov 2018 Location: Essex Status: Offline Points: 379 |
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I have found one here http://www.thisoldtractor.com/mg_manuals/workshop_manual_lemans-1000_en.pdf If you would like a colour copy I will have to draw it as I have not done so as yet. Carl Allison does not appear to have one either. The nearest I can find is the V75 but that has electronicignition and not points as the 1000 Le Mans has.
The front brake switch looks like it is under the handle bar leaver, it will have 2 red wires and a red/blue wire going to it.
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Chris and Karen - Essex
2011 Stelvio NTX, 1974 950S (750S replica nearly rebuilt!), 1966 Triumph T100SS 58 years young this year! |
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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Comparing that diagram with the one for the LM IV, I can't see the difference.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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Bentombed
Falcone Joined: 11 Sep 2018 Location: Brisbane Status: Offline Points: 35 |
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thank you - i was trying to figure out why my front brake light was not working, i looked at it and found that the wires coming from the brake were not plugged in anywhere :/ there is nothing apparent in the mess of wires hidden in the fairing, I will keep looking. Cheers |
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ride fast, live slow
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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Check the front brake lever first, see if a microswitch is there, or mounting screw holes for one. Otherwise follow the hydraulic hose from there to see if a hydraulic switch is present.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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Chris950s
Senior Member Joined: 03 Nov 2018 Location: Essex Status: Offline Points: 379 |
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You only need one of the brake light switches to work for an MOT, either front or back. But obviously it is better to have both working.
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Chris and Karen - Essex
2011 Stelvio NTX, 1974 950S (750S replica nearly rebuilt!), 1966 Triumph T100SS 58 years young this year! |
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Barry
Senior Member Joined: 02 Mar 2015 Location: Oxford Status: Offline Points: 2811 |
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Re: MOT "Motorcycles first used on or after 1 April 1986 must have a stop lamp
that switch on from both brake controls. However, a small number of
motorcycles first used from this date were approved with the stop lamp
switching on by only one control. You should fail the stop lamp only if
you are certain that it was originally manufactured to switch on from
both controls.
All stop lamps should light up immediately when the brake is applied and switch off immediately the brake is released. Additional stop lamps, over and above the mandatory
requirements, must be tested. However, if there is doubt as to whether
they are connected, the benefit of this doubt should be given." |
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Bentombed
Falcone Joined: 11 Sep 2018 Location: Brisbane Status: Offline Points: 35 |
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Hi - thank you
the issue i have is the wires that from the brake lever have detached from their cluster and i cannot for the life of me see where they were meant to go! the diagram for the seems to match up perfectly - sadly my bike has had some weird stuff done to it.
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ride fast, live slow
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Chris950s
Senior Member Joined: 03 Nov 2018 Location: Essex Status: Offline Points: 379 |
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Two red wires should go to one terminal on the switch and the red/blue go to the other terminal. The red wires are the feed to the switch (one comes from the volt meter and the other from the 15 pin connector. The red/blue wire goes to the brake light via the rear brake light switch.
Can you post a photo of the switch and wires?
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Chris and Karen - Essex
2011 Stelvio NTX, 1974 950S (750S replica nearly rebuilt!), 1966 Triumph T100SS 58 years young this year! |
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Bentombed
Falcone Joined: 11 Sep 2018 Location: Brisbane Status: Offline Points: 35 |
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thank you - that all makes sense - i will take a photo tonight. Cheers Ben
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ride fast, live slow
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Bentombed
Falcone Joined: 11 Sep 2018 Location: Brisbane Status: Offline Points: 35 |
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update - sorted. missing earths, new wires not colour matching and rank amateurism. Took it to an auto electrician, all sorted. the horn works again too
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ride fast, live slow
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c13pep
Senior Member Joined: 31 Aug 2017 Location: Doncaster Status: Offline Points: 2110 |
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Well done for taking it to an Auto electrician to sort now just enjoy
CHRIS |
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you can`t have any fun in a straight line
Monza Honda CB77 project |
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