Electrical issue once more.......

Every time I have had the described problem on any of my R3's, I put the bike in gear and slightly rock enough to nudge the crank to a new position. Worked every time (so far).

Just an update. Since posting I cannot get the bike to duplicate the fault. After numerous attempts I have swapped the fan and ecu relay. A new relay is on order and will be marked so it can be inserted in the line up when and if the problem does reoccur. Of course I have checked all connections, cleaned the crank position sensor, and offered some unprintable phrases to the Lucas Gods of the past. I riding the Old Girl to work again this morning, 35 degrees leaving the door, supposed to be 70 on the way home. Love Virginia weather this time of year. Thanks again all, will keep you informed if and when the culprit is finally uncovered.......

George when you do get it permananly fixed can I move into your garage? No need to charge me any dig money as I will ride all your bikes each day in place of rent money.

Dave,

I will start building a pen for the sheep this weekend..........

britman said:

Dave,

I will start building a pen for the sheep this weekend..........

Click to expand...

Why? They will be sharing my bed

scot in exile said:

Why? They will be sharing my bed

Click to expand...

he dont want to share?

britman said:

Dave,
I will start building a pen for the sheep this weekend..........

Click to expand...

Well, I am digging up this old thread because the issue is still there, intermittent but still there. Relays have been changed, twice. Brand new battery, checked and double checked. Speedometer went bad and has been replaced. I have been through the wiring with a fine tooth comb, can't see anything. I have printed out all of your inputs, suggestions, ideas as to the cause of the issue. Lately it has been occuring more so this is going to be my winter project, fix the **** thing.

Here is a run down of what I have done so far, all WHEN the bike was in the fault mode. The starter button wire R/W, works perfect slightly under 12v with the clutch in and button depressed. Fuses 5, 8, and 9 all are just under 12v also.

Some added information that I also found when testing in fault, again keep in mind the neutral light is on and everything works, lights, turn signals, horn, but the Gipro is blinking and nothing when you hit the starter button. For the first time I put the bike in gear, when that took place the Gipro went completely dark, blank screen. When you flip the kill switch or turn the key a couple of times the bike recycles and fires up perfectly.

I had the positive of the Gipro connected to the hot side of the battery, but have since moved it with a splice to the taillight wire which I found had a slight abrasion, so I soldered it in killing two birds with one stone.

Checking the ECU relay on the left side shows power to pin 30 with the key off, key on produces power to 30 86 and 87 when the bike is not in fault mode. In fault mode a test showed there was no power to pin 87 I believe, now the **** thing won't act up so I am calling it a night and coming back after the bike sits for a while. All tools, testers are still out so I am not giving up. Nothing worse than a f^%&*&g intermittent electrical problem.

Thought I would bring this back up and see if there were anymore suggestions or avenues I haven't gone down. Like Lloyd Bridges in Airplane, I sure picked a fine time to quit drinking.......

i guess we have a problem with the name of relays.
on the left side u have an engine management relay / fuel pump relay / fan relay
on the right side u have a turn signal relay and starter relay. no ecu relay
i will assume u r working with the starter relay.
when i have problems like this i would run a wire from relay post # ? (the one that grounds from the computer ) bring the extra wire to the handle bar area and install a STARTER BUTTON and then run another wire to ground. so when it acts up u flip the switch and see if it starts.
if it does start then that would tell u that the signal is not being sent by the ecu.
this gives u a place to working from.
u have several signals sent to ecu kickstand,clutch lever, neutral signal.
i would guess that gipro is your problem.

EDIT
switch with starter button

what i said in post 19 can be DANGEROUS this by passes all safety features.
bike will start in all gears