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Discussion Starter #1
I bought my 06 zx6r last friday 7/3/15 and have been putting a lot of ride time on it. I purchased it from a dealership as an "As Is" bike. It had some cosmetic damage and about 29k miles. The motor sounds and runs strong, however on 2 separate occasions in the past 2 days, the bike has shut off on me while riding. I was cruising down the highway and out of nowhere the bike lost all power until it stalled. I tried restarting it and the FI light would come on and it would not turn over. After letting it sit for about a minute, it fired right back up like nothing ever happened, the light never came back on or anything. Any ideas as to what could be causing this? I thought maybe the fuel pump or something along those lines. The dealership will be getting a phone call about this, regardless of the "As Is" thing. Any help would be greatly appreciated.

Thanks
Zach
 

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Discussion Starter #4
Thanks for the responses guys. Does the code stay on file even if the light isn't on? The only time the light came on is when I tried to restart it after it shut off. After letting it sit for a couple minutes the bike fired up and the light wasn't on.
 

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Yes you can view old codes, just follow the instructions from in the link ^^^. As stated above, this could be the ecu issue although from what I've read before I think the bike would still turn over but just not fire until it's cooled again, but I could be wrong. Google "05 zx6r cutting out" or something along those lines and read through the many threads to see if the symptoms sound the same
 

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Zach,

I'd start looking for a replacement ECU.... you may have just found out why the previous owner sold the bike. Hopefully that's all it is; not a cheap fix, but a fairly common one for that model.
 

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Zach,

I'd start looking for a replacement ECU.... you may have just found out why the previous owner sold the bike. Hopefully that's all it is; not a cheap fix, but a fairly common one for that model.
Very common Issue. Hate to tell you tho, once the ECU is cooked, it's cooked. Good news is once you plug in a new one, it's gonna runn good as new. Dont wrap the ECU. It generates a lot of elecrical heat on it's own and needs to dissipate efficiently.
Look what I did



I put the ecu where the servo used to be. Now it rest on top of the negative battery terminal and the space where the motor used to be. Lots of air flow under the seat, and it's far, far away from that midpipe and can!

Don't buyt used electronics online... theres a reason you find cheaper 05/06 ECU's online than you can in a store a salvage yard. They probably had the same problem you did... At a physical location, you have somewhere to go back to if anything is wrong... spend the extra couple of bucks now and never worry about it again!
 

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Very common Issue. Hate to tell you tho, once the ECU is cooked, it's cooked.
ive got to disagree there mate. I was helping out a guy with the ecu issue a while back and even though his was so bad the plastic under the ecu was warped, he said he put in some heat shielding and it never happened again, and i haven't heard from him since so would assume it's still all good. You've got first hand experience and I haven't so maybe you're right, but I'd say it's worth trying to shield the ecu first before going and buying another
 

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Discussion Starter #9
Thank you every one for the help. It seems unanimous that it is the ecu. I'm going to check it out here shortly and review the codes. Hopefully the dealership has some integrity and will fix it since I have only had the bike for a week.
 

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I'm guessing that the ECU is the fault, odds are very good this is true.

I presume PA has a lemon law.... this is something they need to make right, and you are well within a 30 day window. Might be best to get your money back, or be prepared to do so.
 

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Discussion Starter #11
Yea, the dealership already got an email, but I will be calling them when they open on tuesday. And just to be clear, when I search the ecu, google results brings up the bazzaz fuel controller... is that the correct part? or am I not finding the right thing.
 

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No that's not the part you need. That's an aftermarket fuel management system. This is the part you need

05 06 Kawasaki zx6r ZX6 R CDI ECU Computer | eBay

If it turns out you have to fix it yourself I'd try just heat shielding the old one first though. It only causes an issue when it gets above a certain temp which is why the bike works for a while before it dies, and the shielding might make it stay below that temp. It's definitely worth a shot imo
 

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Why hasnt anyone ever tried opening up the ECU and replacing the bad components in there?

Is it even possible?
 

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ive got to disagree there mate. I was helping out a guy with the ecu issue a while back and even though his was so bad the plastic under the ecu was warped, he said he put in some heat shielding and it never happened again, and i haven't heard from him since so would assume it's still all good. You've got first hand experience and I haven't so maybe you're right, but I'd say it's worth trying to shield the ecu first before going and buying another
No, that's fair. I only have my experience to go off of, but I tried everything with 2 different ECU's that had my bike acting exactly the same way as the OP is describing, which lead to that blanket statement... I do agree that it cant hurt to at least try and move it away from the heat and see if it helps before purchasing a new one... Only thing I will caution against is you don't wanna find out that your problem isn't solved when you're mid lean :upside:
 

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Why hasnt anyone ever tried opening up the ECU and replacing the bad components in there?

Is it even possible?
Silicon stops being a semiconductor, and silicon transistors therefore stop working, at around 150°C. most of the components on the ECu motherboard are comprised of silicone.... once its' cooked, as I said.
 

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Why hasnt anyone ever tried opening up the ECU and replacing the bad components in there?

Is it even possible?
There's a lot going on inside the ECU.... it all depends on what is actually breaking/burning out. As has been said, any semiconductor based device loses resistance as it gets hotter. Once it goes past a certain point, thermal runaway occurs, and you let out the magic smoke.
 

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I don't have one that is bad so no way to take it apart and see but I would not be surprised if the ECU board is potted inside the case.
 

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Discussion Starter #18
Unfortunately I didnt get a chance to check the bike out today. Hopefully tomorrow I can pin point what the problem is and get it solved ASAP. Thanks again for the help everyone!! It is greatly appreciated!!!!
 

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Discussion Starter #19
Do you guys think exhaust wrap would work to dissipate the heat from around the ecu? Or should I try something like a metallic adhesive?
 

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Get the adhesive shielding. apply it under the tail facing down. Exhaust wrapping the midpipe and link pipe on the slip-on is also a good measure. This issue is only on the '05 bikes as the problem was rectified on the '06. Everything points to the ecu based on the information you posted, but this isn't a very common issue for a 2006.
 
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