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Discussion Starter #1 (Edited)
Gang,
On my ride home today...bike cut out / cut off twice while riding :confused:

The bike came back on immediately, but when it cut out the second time I looked down and all of my gauges had gone dark, as if I had shut off the bike completely

Is that an indicator my ECU is going out ?

Raleigh
 

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Gang,
On my ride home today...bike cut out / cut off twice while riding :confused:

The bike came back on immediately, but when it cut out the second time I looked down and all of my gauges had gone dark, as if I had shut off the bike completely

Is that an indicator my ECU is going out ?

Raleigh
More of an indicator you have a loose connection or short somewheres...:eek:
 

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Check the battery cables:D Easiest place to look first. If that's not it then go over all the grounds. I would turn on the bike and wiggle the battery connections first to see if you can recreate the symptoms. Then clean and reconnect.

Edit to add: Especially check for corrosion near the end of the cables. The ends may look OK but those cables can corrode and become brittle inside, typically near the terminals.
 

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Discussion Starter #4
Thanks ...will do that right now !! don't like the wife's casserole...good excuse !!
 

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Thanks ...will do that right now !! don't like the wife's casserole...good excuse !!

You have to eat the casserole to get your salad tossed...:D Do you have a tube of dielectric grease? May want to get some and swab a dab or two in the electrical connections. This will help with corrosion.;)
 

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Check the side stand switch. It may be failing, or it needs to be adjusted so that the stand makes solid contact to the switch.
 

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Discussion Starter #7
Good idea RAIN...I checked the battery cables and they were tight. Will try the side stand next

@Mad - I plan on getting a Shorai this summer, so I will get some di-electric grease when I do that install. I am sure Autozone should carry it
 

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Since the guages went out then the circuit with the problem is one that includes the guages and whatever else keeps the bike running. A check the ignition switch, ECU grounds, etc.

What was the last thing you did to the bike?
 

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Discussion Starter #9
OK guys...rode in this morning and a related but different issue arose. No cut out per say, but I did get a bucking motion, almost as if fuel was not making it to the injectors. The bike never cut out or off, all gauges stayed lit. It only happened once, and lasted for maybe 2 seconds. Sputtered and backfired a bit...then righted herself and I kept going.

Thoughts ?:confused:
 

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What you just described used to happen to me. The bike would cut out as if no fuel was making it to the injectors, guages would stay on. This would only happen on bumpy roads though. Finally checked the ecu and it had come loose from the undertail. Put some zip ties around it to secure it in place and haven't had the problem since :D Hope this helps!
 

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Discussion Starter #11
THANKS Spoon !! I loves me a cheap fix..."Cheap" as the price of a zip tie vs. buying and installing a ECU. Not repairing something cheaply
 

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Check the battery cables again. Physically put a wrench on them and make absolutely sure they are tight. That is the culprit in issues like these 49 times out of 50.

After that start searching the length of the subframe for pinched or chafed/exposed wires. All it takes it one tiny sliver of bare wire to contact the frame when the bike hits a bump and the bike stutters. This is not uncommon either especially with a lot of users installing undertails and aftermarket exhaust brackets etc.

After that I would be looking at the tip-over sensor with suspicion.
 

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Discussion Starter #13
Wow....ok. Didn't think about the undertail being a potential cause. Good looking out !

I used a wrench last night, so I am sure they are on securely...but as stated I will buy a new battery in June ( Paypal now has a pay in 6 mo feature :D ) when I have a bit cash after this next round of repairs / mods ...:cool:

Over the weekend I will spend a bit of time searching out grounding issues...
 

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Now that I think about it I had a cbr that would shut off randomly on the highway or at stop lights. Easy fix was to kick my buddies ass. Never hit my kill switch again...
 

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Now that I think about it I had a cbr that would shut off randomly on the highway or at stop lights. Easy fix was to kick my buddies ass. Never hit my kill switch again...
Bastards....all of them.:D

raleighp, you gonna take a break from riding and give her the once over she seems to require?? Hig hit on a point, take your start/kill switch apart (check for scorpions there Tex) see if you have a problem with a short in there too. Long shot, but that has happened to me before.:cool:
 

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The gauges going out leads me to believe that there is a problem near the root of the power supply, even if you noticed it once it still happened and is an important clue. How about checking the connections at the fuse box as well (ya know, since we have you on a wild witch hunt already) :D

Back when I built cars the first things in the gremlin list were bat terminals and grounds. Especially on the Fox body mustangs since they had shit wiring at the hub on the starter solenoid (gotta love fusible links).

The electrons, you must follow.

USUAL DISCLAIMER: your bike is toast, they will probably total it for the repair costs. I am a generous and kind person and will graciously pay the shipping costs to take her off your hands. Nobody deserves to go through this, please help me, help you.
 

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Discussion Starter #17
Thanks guys....will do ! I have printed out all of the suggestions and will take them in with me. I am not very good with moto repairs, but the shop I go to can surely find the issue(s). Wish I were more mechanically inclined, and given more time I think I could be...hey B Miller, can you carve out some time to teach me a few things ??
 
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