The New And Improved Unofficial R65 Forum V2
Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: scotty_b on February 15, 2009, 11:06:16 AM
-
78 R65
( duh ) Bike ran fine but as part of my cafe conversion I am eliminating ALOT of the wiring harness to simplify things. I have everything done and all lights and circuits test out fine BUT I have found as I near the end I have 3 hot wires for the coil. turns out whoever wired the thing originally had a feed coming directly from the battery with a jumper wired in thus creating too many hots wires. What I need to know is does anyone have a copy of the wiring schematic or know firsthand the PROPER way to wire the box in? It appears to be a previous gen box as it is black and the new ones are red. I have no part number on it, but the wires are as follows.
4 wire setup: looking at the top of the box, left to right
solid black on the left side of the box ( long lead)
solid green on the right
red / yellow tracer on the right
solid black on right side
BTW bike still has a dual coil ( stock ) setup, not a fancy digital box coil. I want to keep it this way too 8-) If a pic would help just say so
Thanks, Scott
-
Maybe this will help?
http://www.boyerbransden.com/pdf/KIT00097__BOX00040_.pdf
-
Ive just had a "mare " with my coil wirering sorted now but found the haynes and clymer wirering diagrams contradicted each other and there is a spare live black wire floating about which is redundant on european spec bikes mine is not electonic on my bike (80r65) but i can let you know the cable colours and teminal numbers on the coils if it helps!!. Bare in mind the tacho and horn feed are on this circuit.
Lou
-
That diagram is for the newer micro digital setup. Mine is an older more basic unit, and only has 4 wires, where the new ones have 5.
Lou I have the big ass Clymer that covers all models and have also found the diagrams are far from exact. I have several wires in my FACTORY harness that the manual doesan't even have a color for. ON ANY year / model :o I have eliminated the tacj and rewired the horns so they are a non issue as far as the ignition box goes. I think I MAY have it figured out by process of elimination. I labeld 3 of the 4 wires when I took the harness off of the bike, the 4th had a long lead with a ring terminal which I'm pretty certain was a direct feed from the battery. My isues started when I realized the P.O. had to makny jumpers wired ion to make the box work....or so I thought :-/
-
So in case someone ever needs this. I contacted Motobin as they had what appeards to be my unit still for sale. I recieved a scan of the schematic today. He it is if anyone else has any issues with theirs.
-
This might be a good one to stick in the technical FAQ section, as I can easily foresee the topic of Boyer wiring coming up again in the future (as I contemplate whether or not my revenue stream is sufficient to ponder making an offer on an 1980 R100RT)...
::)