954rr with no signs of life. - Honda Motorcycles - FireBlades.org
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post #1 of 9 Old 05-29-2017, 6:35 PM Thread Starter
 
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954rr with no signs of life.

So let me just start by saying that i know, not a great move i did..

Ive been noticing weird stuff going on like speedo reading 0 lately. The a couple of days ago, i arrived to a place and later when about to leave - engine turns over, no start, very soon battery drained. Yes, i know, regulator rectifier, probably. Being the dumb tool that i am i pushstarted the bike, it fired up, i panicked and gave it some good throttle so it doesn't die. Right at that moment it completely died. No reaction to turning key, no lights indicators or fuel pump. Not even hiss light.

Changed the battery - nothing
Tried the RR from my VFR 800 - nothing

Now wondering where to look from here. ECU? Anybody know how to troubleshoot that? What else would cause a complete electrical failure? And no, for now i haven't located any melted wires etc, no smoke etc, all seems fine.

Thanx for your help Bladers.
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post #2 of 9 Old 05-29-2017, 8:00 PM
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Re: 954rr with no signs of life.

Did you check the main fuse? 30amp under the seat

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post #3 of 9 Old 05-29-2017, 9:32 PM
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Re: 954rr with no signs of life.

hmh.

Not sure what's going on with that speedometer reading 0, but I'd definitely check the following areas;

Fuses. Battery Terminals. Grounds. Stator connectors. All connectors.

There are two "common" grounds on the 954s. They are YELLOW and one is under the seat (under the ECM cover), and the other is between the gauge cluster and the headlamp assembly. I'd not assume that the speedo issue is related to the not starting.

Do you have a Service Manual? Have you checked MIL codes?

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post #4 of 9 Old 05-29-2017, 9:42 PM
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Re: 954rr with no signs of life.

The speedometer issue will either be a ground issue, a wiring or a sensor issue.

On a Triumph I had, there were two different grounds on the bike and we all know how well British are good at wiring. Anyway, Triumph had a fix that involved replacing the ECU. The ECU can be flashed and someone compared the old to the new and figured out what Triumph changed. Rather than fixing the ground issue, they just disabled the use of the front speedo sensor and used just the gearbox. Yeah, it had two sensors. The point is, ground faults can cause weird issues especially because of how some sensors operates.

I would look at the ground first. Then I would look at the wiring for the speedometer and lastly look at the sensor. Looking at the grounding and the wiring in general are free. A sensor costs money and should be a last resort but you should be able to test the sensor.
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post #5 of 9 Old 05-30-2017, 4:05 AM Thread Starter
 
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Re: 954rr with no signs of life.

IanDoohan, unslow1, lanbrown - thankyou, going to check the suggested in a few hours and update.
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post #6 of 9 Old 05-30-2017, 4:03 PM Thread Starter
 
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Re: 954rr with no signs of life.

So main fuse indeed was blown. Replaced, dash comes on. Havent gotten around testing if it starts yet. Checked for current leakage and there seems to be some 1.28 mA, looks like coming from clock/fan (tried taking out fuses, when removed that - loss went to 0.) Took off Fan connector, still leakage remained, so it has to be "clock" , not sure quite what it is.

+ i only found one earth , under the seat and notging up front, not in the manual etc.
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post #7 of 9 Old 05-30-2017, 4:43 PM
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Re: 954rr with no signs of life.

Quote:
Originally Posted by the13thangel View Post
+ i only found one earth , under the seat and notging up front, not in the manual etc.
You'd probably have to disassemble everything to find it, and my guess it's wrapped in tape as well. Despite your discovery, still worth looking into.

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post #8 of 9 Old 05-30-2017, 6:20 PM Thread Starter
 
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Re: 954rr with no signs of life.

Hey!

Thanks for the tips guys, great bladers community you have.

Bike running fine. For now it has the VFR R/R but i'll order a decent one right now.

Can't figure out if that was real current leakage tho, so will check tomorrow morning the status of battery.
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post #9 of 9 Old 05-31-2017, 3:59 AM Thread Starter
 
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Re: 954rr with no signs of life.

Altho the speedo is still reading 0. Guess I will have to open up the whole front aswell. (it reads speed for a few min, and then turns to 0)
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