Electrosport Diagnostic Doc - R/R Black Wire Question - Discuss Electrosport Diagnostic Doc - R/R Black Wire Question on CBRXX, the ultimate on-line community for Honda motorcyclists. Read it in Body / Paint / Electrical / Lights. (Discussion of Honda CBR 1100 XX Super Blackbird Bodywork, Seats, Seat Cowls, Paint, Windscreens, Electrical System, and Lights.)

SondanXX · 08-21-2008, 9:10 AM

Hey Guys,

Picked up my 2000 BB a few weeks ago down in John01XX's 'hood. When I got it, the battery was dead and luckily John had an older spare that he lent me to get the BB back to Orlando. I've put maybe 1000 miles on it since then and this Sunday it wouldn't start while I was at the Cycle Gear in downtown Orlando. Push started it, and rode it back home.

I've installed a Datel Voltmeter onboard to monitor the voltage and over the past weeks the voltage has been in range, i.e.
12.4 - 14.6 across the rpm spec as listed in the manual, so I was surprised when this battery failed. I also keep it on a battery tender while it's in my garage so it's always maintained and prior to riding it, I've gone through most, if not all the electrical connections, cleaned/lubed them and insured nothing was burnt or hosed up already. BB has 37K miles on it.

So, I pick up an ST size battery from Advance and charge it up. I then went through the various steps listed in the Electrosport Diagnostic chart combined with the Honda Service manual to insure my charging system, R/R and Stator were ok and given the miles and what I've read on this site, I figured it was about due...

According to the Honda Manual, all of their suggested checks and readings (Chapters 16-6 thru 16-11) are within specs.

According to the Electrosport Diagnostic (attached), everything also appears to be within spec, with the following exceptions:

Section B - First test box - the R/R "Black" wire and Battery (+).
Section B - Last Stator test box - The AC Voltage check on the yellow wires. - My Fluke meter will not read more than 20 Ohms so I end up getting the "OL" reading on the gauge and according to the doc it should show 3 equal readings of higher than 50 Ohms.

I'm a bit uncertain as to what, if anything, I should be concerned with given my findings or lack thereof and was hoping maybe someone here could advise... in my mind my Voltage range is within spec and I confirmed the Datel reading with my Fluke meter and they both are the same and within the specified range of the Honda Manual.

The First test and the black wire is producing more Volts than their recommended range, i.e. more than .2 Volts... which their suggestion is to check the entire circuit between the ignition switch and the R/R. So, I went through and cleaned/lubed any connections along the way that I could get to, and they all looked fine, then re tested and got the same readings as before...

Any thoughts? I've gone ahead and ordered a new 2001 R/R, but more because of all the issues I've read about on this and not because of the test results... I have no idea what the black wire has to do with anything... I suspect it might just be overcharging the battery? Although according to the ElectroSport Diagnostic my Volt findings are within spec, I've got continuity where I should and everything else seems ok. What's your advice?

Sorry for the length of this thread, but I tried to be as detailed as possible. Thanks!