Bike died on me 3 times on the way home - Wrist Twisters
 
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post #1 of 31 Old 05-07-2012, 01:16 PM Thread Starter
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Bike died on me 3 times on the way home

Pulled out of the office, gunned it a little, not much about half throttle all of a sudden *womp* engine just quits, like the kill switch had been hit. The light in the bottom left was lit up ( fuel injection right?) I'm still rolling and I turn the key off, back on, she fires right up.

About 3 miles later on the highway she cuts again, this time I notice the motor is still running, but the throttle does nothing. Also the speedo needle is jumping all over the place. I pulled over cut it off, back on and she fired right up again.

3rd Time only about 1 mile later, same thing. Bottom left light is on engine running, but throttle does nothing. I pulled over, key off, then on, fired up again.

No problems the rest of the 35 miles or so to the house. Is this the TPS? The first time it happened I think the motor cut out completely but I'm not sure, the other two times I'm pretty sure it was still running, but the throttle had no effect. The bike is an 02 with 17k miles, I haven't changed the plugs yet, or messed with the valves.

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
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post #2 of 31 Old 05-07-2012, 01:27 PM
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Do you have a PCIII?

Mine did that with the PCIII. It would randomly cut off and once I turned the key off and back on it would be fine. I took off the PCIII and never that the problem again.

If not, then check your electrical connections on your battery.

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post #3 of 31 Old 05-07-2012, 01:29 PM
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Quote:
Originally Posted by peoples1234 View Post
Do you have a PCIII?

Mine did that with the PCIII. It would randomly cut off and once I turned the key off and back on it would be fine. I took off the PCIII and never that the problem again.

If not, then check your electrical connections on your battery.
+1 - I had the same type off issues on an R1. Turned out the negative connection on the battery was cracked and certain vibrations or leans would create a short that sent everything wonky.

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post #4 of 31 Old 05-07-2012, 01:29 PM Thread Starter
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Quote:
Originally Posted by peoples1234 View Post
Do you have a PCIII?

Mine did that with the PCIII. It would randomly cut off and once I turned the key off and back on it would be fine. I took off the PCIII and never that the problem again.

If not, then check your electrical connections on your battery.
no PCIII she's completely stock. I'll check the connections now.

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
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post #5 of 31 Old 05-07-2012, 01:43 PM Thread Starter
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I checked the connections at the battery, the negative terminal was a little loose. I cranked it and jiggled the connector but it wasn't loose enough to cause a disconnection. I'm gonna go for a ride now and see if I can make it happen again.

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
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post #6 of 31 Old 05-07-2012, 02:25 PM Thread Starter
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Update***

Rode the shit out of it for 25 miles or so and couldn't get it to happen, I have no clue.

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
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post #7 of 31 Old 05-07-2012, 02:50 PM
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Check the grounding connection under the tank

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post #8 of 31 Old 05-07-2012, 03:25 PM Thread Starter
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Quote:
Originally Posted by voodooridr View Post
Check the grounding connection under the tank

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Where is it exactly under the tank? Is it pretty easy to find.

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-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
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post #9 of 31 Old 05-07-2012, 04:06 PM
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Its easy to spot. Lift the tank, about 6" back from the radiator cap there are 4 green wires that attach to the frame. If you need pictures, let me know. My 02 tank is off already.

if you love your motorcycle, set it free.. if it comes back and hits you.. you highsided
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post #10 of 31 Old 05-07-2012, 04:50 PM
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a little loose is all that's needed to cause electrical gremlins. i highly suspect that was the source of your issue.

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post #11 of 31 Old 05-07-2012, 05:26 PM Thread Starter
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Quote:
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a little loose is all that's needed to cause electrical gremlins. i highly suspect that was the source of your issue.
Man, I hope so. I tried wiggling it while the bike was running, but I guess that's not nearly the same as when the bike is running at speed.

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
-2006 599 ** WRECKED
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post #12 of 31 Old 05-07-2012, 05:43 PM
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I had this problem. Throttle position sensor was suspected. I've replaced it, but still have the problem.
I don't currently have a PC3 installed (yet) but the bike had one on it before I bought it and the PO removed it.
I wonder if the TP sense wire doesn't have a good connection to the pcm now and that's what's causing it.

Let me know what you find.

When mine would act up, I could come to a stop (don't cut the engine off) and when I put it in neutral the FI light would start to blink to give me the error code. In the case of my bike, it blinked 8 times (throttle position failure)

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post #13 of 31 Old 05-07-2012, 05:55 PM
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Quote:
Originally Posted by EatDirtFartDust View Post
I had this problem. Throttle position sensor was suspected. I've replaced it, but still have the problem.
I don't currently have a PC3 installed (yet) but the bike had one on it before I bought it and the PO removed it.
I wonder if the TP sense wire doesn't have a good connection to the pcm now and that's what's causing it.

Let me know what you find.

When mine would act up, I could come to a stop (don't cut the engine off) and when I put it in neutral the FI light would start to blink to give me the error code. In the case of my bike, it blinked 8 times (throttle position failure)
Check the TP wire @ the ECU, this wire is tapped for the PCIII, if the PO removed the tap the wire could be damaged.

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post #14 of 31 Old 05-07-2012, 07:05 PM Thread Starter
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Quote:
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Check the TP wire @ the ECU, this wire is tapped for the PCIII, if the PO removed the tap the wire could be damaged.
Does anyone have a picture of what this wire looks like?

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
-2006 599 ** WRECKED
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post #15 of 31 Old 05-07-2012, 07:08 PM
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Quote:
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Check the TP wire @ the ECU, this wire is tapped for the PCIII, if the PO removed the tap the wire could be damaged.
+1, exactly what I was thinking while reading this thread.

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post #16 of 31 Old 05-07-2012, 07:30 PM Thread Starter
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I did notice there is a plastic connector sticking out of the wires near where I think the ECU is (on the right side of the bike in the tail section). I thought it was strange, maybe there was a PCIII plugged in at one time?

If it is tapped what should I do?

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
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post #17 of 31 Old 05-07-2012, 08:43 PM
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Quote:
Originally Posted by TheBeeDeeGee View Post
I did notice there is a plastic connector sticking out of the wires near where I think the ECU is (on the right side of the bike in the tail section). I thought it was strange, maybe there was a PCIII plugged in at one time?

If it is tapped what should I do?
I think you've found it as there are no taps on the stock harness. I suspect what you have is a red or blue piece that clips over one of the 80 or so wires going to the ECU. If that's the case I'd start throwing shit... I mean I am sure you have found it.

I (personally) would finish the cut, strip it, splice it (heat shrink + solder for me) and call it a day. You may be able to use a butt-splice (crimp) connector or if you don't mind spending a bit of money a posi-lock connector.

if you love your motorcycle, set it free.. if it comes back and hits you.. you highsided
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post #18 of 31 Old 05-07-2012, 08:46 PM
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sounds like a very possible and likely culprit. while you're at it, check to ensure other wires in the surrounding area are not cracked/frayed. if the PO left the crimp there, no telling what condition he'd leave any of the other wires and it warrants an inspection at the very least.

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post #19 of 31 Old 05-07-2012, 09:07 PM
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Pictures!

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post #20 of 31 Old 05-08-2012, 01:46 AM
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Quote:
Originally Posted by TheBeeDeeGee View Post
Does anyone have a picture of what this wire looks like?
Go to the Powercomander website and download the installation instructions for the PCIII for 919, there's a good pic there.

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post #21 of 31 Old 05-08-2012, 03:53 AM Thread Starter
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This is the connector, you may have to look hard it's black and blends in. sticking up toward the back

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-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
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post #22 of 31 Old 05-08-2012, 05:05 AM
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That is not it, pretty sure thats for diabgnostics

if you love your motorcycle, set it free.. if it comes back and hits you.. you highsided
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post #23 of 31 Old 05-08-2012, 05:31 AM Thread Starter
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Quote:
Originally Posted by beefsalad View Post
That is not it, pretty sure thats for diabgnostics
ok cool, I didn't have any problems on the way in this morning. Ever since I tightened that negative terminal its' been good. Which is weird because it was loose but it didn't seem so loose it would lose connection.

Would losing connection with the battery even cause this problem?

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
-2006 599 ** WRECKED
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post #24 of 31 Old 05-08-2012, 10:45 AM
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Quote:
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Would losing connection with the battery even cause this problem?
in a word, YES

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post #25 of 31 Old 05-08-2012, 11:45 AM
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Quote:
Originally Posted by TheBeeDeeGee View Post
ok cool, I didn't have any problems on the way in this morning. Ever since I tightened that negative terminal its' been good. Which is weird because it was loose but it didn't seem so loose it would lose connection.

Would losing connection with the battery even cause this problem?
its a 919... KISS method seems to ALWAYS prevail.... thats keep it simple stupid!

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post #26 of 31 Old 05-08-2012, 12:01 PM Thread Starter
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^^ yep, I believe it now. Thanks for all the input guys, hopefully that loose terminal was the problem.

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-2005 CBR 600 F4i
-2001 RC51 ** SOLD
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post #27 of 31 Old 05-09-2012, 08:18 AM
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Quote:
Originally Posted by nd4spdbh View Post
its a 919... KISS method seems to ALWAYS prevail.... thats keep it simple stupid!
Correction: It's less that it's a 919 and more that it is a Honda. And therefore KISS applies.

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post #28 of 31 Old 05-12-2012, 06:29 PM
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I found my tp sense wire at the PCM was not spliced together very well:


image-2650257138.jpg



image-507855691.jpg

In fact, after fondling (heehee) the wire, the next time I tried to start my bike, it only cranked, but wouldn't fire. So I removed the seat, and while cranking, I pressed my finger against the splice, and it fired up.

So I spent today installing my Dynojet PowerCommander:


image-3065512224.jpg



image-1118204264.jpg

While doing so, it gave me a chance to clean up The previous wiring jobs and reroute the wires so it all looks cleaner. Replacing twist and crimp connections with solder and heat shrink tubing.... The good tubing too, the stuff with glue inside that hardens after it cools.

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Used to be Red, now it's Green. Open for name suggestions.
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post #29 of 31 Old 05-13-2012, 05:42 AM
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I didnt read all the replies sorry if my post is same with one of them...

Mine had the same issue and the problem was oxidation in the wires. After disassembling handle bar components check all the vires (signas, kill switch etc), it is usually very visible in the kill switch, clean it up annually and all should be fine...

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post #30 of 31 Old 06-13-2012, 01:03 AM
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I know this thread is a month or so old...but...this brings to light a huge problem I have with aftermarket wiring anything. All these kits, blinkers, PCII, etc all come with crimp and splice connectors.... I hate them they are evil. They are cheesy, no matter how good, and leave the possibility for corrosion and shorts, among other failures. Especially when removed later. If you have the ability to take your bike apart to put in new electrical you have the ability to go spend 25 dollars at your local Radio Shack or Harbor Freight for a pencil soldering iron, solder, flux (if the solder doesnt have it) and some heat shrink. It's not hard to practice a few wires before you have at your bike.

When I was 11 I got the first street bike I have ever owned and it was a CB750. It had been crashed and caught on fire...entire wire harness under the tank was burned through. I had a newer parts CB750 with a almost the same wiring harness. I ended up splicing in maybe 20-30 wires to repair the melted harness, all with solder, flux and an iron. The bike fired up first try. This was all with my dad and his partners at the bike shop he owned telling me it was a waste of time and wouldnt work. I even started that bike with a battery that had been totally dry. It had been completely dry for a while and I just filled it with distilled water. It wouldn't even pass a half load test but it showed 13 or so volts after charged and started the bike fine. (i know screwing around with dry/totally dead batteries is dangerous, I knew then too.)

If you are going to splice into factory wiring on your bike, solder when you can. You wouldn't go cutting into ECU/factory wiring on your cage with a .02 cent splice connector, would you?

'02 919 PCIII, Two Bros, Sargent, Ohlins, and some other stuff.
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post #31 of 31 Old 06-13-2012, 06:46 AM
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I agree, or for those who do not/ can not solder, buy some dielectric grease. Put some in where the crimps are. That will help prevent the corrosion for a while

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