The New And Improved Unofficial R65 Forum V2
Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: Yikes on April 05, 2010, 09:34:27 AM
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I was heading out for a nice spring ride on Saturday, started the bike up, let it warm up for a couple of minutes and as I started moving I had a total power loss – no lights at the gauges with the ignition switch on. [smiley=sad.gif]
The day before, I did some exploratory tinkering with the wiring in the headlight shell in anticipation of replacing my reflector with a spare I got from Rob that would accommodate the little pilot light. (Which I didn’t do at that time because it looked to be more involved than wanted to deal with at that time.) So I checked the ground strap to the speedo bolt and sure enough I had failed to tighten it up and it had slid off. I tightened the ground back and had power again. What I did not have was any ignition happening at all. I pulled a plug and grounded it on the cylinder, cranked the starter and no spark. Curses! No nice spring ride for me! [smiley=furious3.gif]
Between Easter duties yesterday, I checked the headlight wiring to see if I had blundered getting it back together, but everything seemed OK there. So I concluded it was an ignition system failure. I have a fairly new Dyna coil and a fairly new ICU, so my prime suspect is the transistor in the bean can that I got on ebay last year. I did a quick check jumping the center terminal from the plug from the ICU to the bean can and did get a spark at the plug. I may do a swap if my old bean can, which was occasionally functional when I pulled it to see if I can get any spark at the plug. If so, I concluding fer sher that’s the problem. Luckily, I do have a replacement transistor (thanks to Bob Roller). I just need to make time this week to do that job. I know we have some good info on the forum here on bean can repair and well as from Snowbum. Another learning experience!
John M
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Well after an evening of tinkering, I got the hall vane effects sensor replaced in my old bean can and got the Old 82 running again last night. [smiley=clap.gif] Thanks to all who have written about this job over the past few weeks and especially to Darryl Richman for Ya Bean Can Thread whose many great photos got me through. [smiley=dankk2.gif]
Now I need to order another sensor to replace in bean can #2 for a working spare. Unfortunately we got a pretty nasty storm early this morning which prevented me from setting the timing and getting back on the road today. It’s just good to know that it’s ready to go tomorrow. [smiley=thumbsup.gif]
John McC
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Happy to help! That's what I came here for, so it's good to be able to help someone else.