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Old 02-09-2011, 09:51 PM   #1
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Exclamation ! This doesn't make sense...

So, about 7:00 pm, I was on my way home from school (on the bike). I look down and notice my gauges froze (not with ice... like a frozen computer). Gear indicator was stuck, MPH stuck, etc... Except the rpm needle dropped to 0. Oh yeah, FI light was on (not unusual... but that's another topic).

Arrived at my exit shortly thereafter and noticed that the bike sounded like . Like it was missing, or running lean, or something... something not cool.

Got home, shut her off (the engine, left bike on), checked fuses, battery voltage... all seemed good. Turned key to off position. Went to crank her back up, just for and giggles... NOPE! Heard the starter kind of try, then gave up, and all lights and gauges went dark until I released ignition button.

.

Well, I figured I'd check the dealer's code (since the FI light was on again... maybe it was something new.) Did the dealer test, went to turn bike on (not start it, just turn it on), and now the bike won't even "boot up" <-- for lack of a better term. Here's a pic:

upload?t1297304852

^That looks normal. Except, that's how it stays.

Okay, I'm jumping around a little here (sorry), but I did get the code before this happened. The code was nothing important... completely unrelated.

So now it won't start or "boot up". Obviously something electrical. I got that narrowed down (Go me!). I've researched failing stators, rectifiers, and generators, and nothing quite matches this scenario.

Sorry again, but here's another afterthought. When I checked the battery voltage right when I got home, it read 12.5V.

Ok, so what do y'all think? Is this something simple that I've missed? Is my post even understandable? Let me know... please. I really don't want to have to cage it tomorrow and worry about this.

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Old 02-09-2011, 09:54 PM   #2
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Either the battery died or your charging system isn't recharging it.
If you bring the battery by I'll put it on charge and load test it for you, no charge.
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Old 02-09-2011, 10:14 PM   #3
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Old 02-09-2011, 10:24 PM   #4
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You need to do a load test on the battery but i doubt you have a load tester so check what you can...

Pull off both terminals and clean em up real good. They build up corrosion underneath where you can't see. I hadn't pulled my seat off in months when I use to ride a lot and it did exactly what yours did, gauges going crazy, etc. I pulled the battery cables which were clean on top and good and tight, but underneath they had a blackish varnish and just a little bit of the green powdery corrosion. Cleaned them up and it was good to go..

Also...

You can have 12v and still have a bad battery, thats why it needs to be charged and then load tested...

if the battery is good but just drained then start checking your charging system.
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Old 02-09-2011, 10:33 PM   #5
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Old 02-09-2011, 10:33 PM   #6
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Thanks to both of y'all for helping

---------

Well, I certainly do not have a load tester. I ride almost everyday and try to put it on a trickle-charger about once a month or so. I'm gonna eat me some dinner, inspect the terminals, and have it load tested tomorrow.

And Patrick, I would love to take you up on your offer, but your shop is way too far . One of these days I'll go make a trip over there just to give you some well deserved business
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Old 02-09-2011, 10:38 PM   #7
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Quote:
Originally Posted by ScooterTrash View Post
it will probably show 12 volts until you put the load to it, via key on, headlight, starter etc. then Ill bet it drops like a lead balloon
Hmmm... so can I "ghetto load test it"? i.e. hold my tester on the terminals, crank it, and see what happens?

And the bike has been taking an extra second or so to crank up lately, but I just figured that was because of this cold weather.
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Old 02-09-2011, 10:41 PM   #8
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Quote:
Originally Posted by Patrick View Post
Either the battery died or your charging system isn't recharging it.
If you bring the battery by I'll put it on charge and load test it for you, no charge.
mine looked just like that and it was the battery.
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Old 02-09-2011, 10:49 PM   #9
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So, I performed the "ghetto load test", and it dropped to 2.0V. So, it seems we all agree its the battery. Makes me feel like a dumbass, but a bad battery is preferable to something worse.

The ride-home symptoms threw me off... along with the normal reading voltage. Lesson learned... I'm still a noob

Thanks again y'all. This is half the reason why I love MH!
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Old 02-10-2011, 01:32 AM   #10
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u still need to check the charging system once u put a good battery in it and or charge yours if its not bad.
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Old 02-10-2011, 01:38 AM   #11
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I know some gsxrs have issues with rectifiers going bad.
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Old 02-10-2011, 01:49 AM   #12
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I know gsxrs go bad.
Fixed!

Heh just kidding. Yeah check the charging system for sure, you don't want to be burning through batteries.
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Old 02-10-2011, 01:53 AM   #13
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Quote:
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I know some gsxrs have issues with rectifiers going bad.
when my rectifier went bad the whole bike just shut down. no power to anything at all, not even lights. id wager a bad stator, given that its a gixxer.
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Old 02-10-2011, 11:15 AM   #14
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Thanks for the input y'all. I did a bunch of googling on the subject.

I had the battery on a trickle-charger all night. Reading this morning was 12.9V. I turned on the bike (auxiliary, not running), and the reading dropped to 12.0V. I cranked her up and got her running (Cool . That means battery was at least part of the problem).

I continued monitoring the voltage as it ran for about 10 minutes. When she first started running, the voltage dropped to 11.7V. Then slowly, over the course of about 10 minutes, it dropped to 11.5V. It was mostly at idle, I only revved it a few times to about 5k rpm.

So, I'll cage it to school today ( Dammit! Challenge failed ). When I get back, I'll take the battery somewhere to have it load tested. Then, after I'm sure I have a 100% good battery, I'll check the charging system: the rectifier/regulator, generator, and stator.

That's my plan. I'll let y'all know how it goes. Any further input is appreciated.
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Old 02-10-2011, 11:37 AM   #15
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thats not how you check the charging system fully, u need to as well hold the rpms up around1500-2500 and see if the voltage raises or what. it sounds like its not charging though and you need to check stator and recti. bet its stator though.
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Old 02-10-2011, 11:45 AM   #16
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^ Note taken. I have the service manual on my computer. About to leave for school. When I get back, I'll follow those steps. And I'll follow up here.

Thanks again for the help everyone.
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Old 02-10-2011, 12:28 PM   #17
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Quote:
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when my rectifier went bad the whole bike just shut down. no power to anything at all, not even lights. id wager a bad stator, given that its a gixxer.
18k on mine, even after a bad wreck that ground a hole in the stator cover.
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Old 02-10-2011, 01:07 PM   #18
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Quote:
Originally Posted by yeraboof View Post
Thanks for the input y'all. I did a bunch of googling on the subject.

I had the battery on a trickle-charger all night. Reading this morning was 12.9V. I turned on the bike (auxiliary, not running), and the reading dropped to 12.0V. I cranked her up and got her running (Cool . That means battery was at least part of the problem).

I continued monitoring the voltage as it ran for about 10 minutes. When she first started running, the voltage dropped to 11.7V. Then slowly, over the course of about 10 minutes, it dropped to 11.5V. It was mostly at idle, I only revved it a few times to about 5k rpm.

So, I'll cage it to school today ( Dammit! Challenge failed ). When I get back, I'll take the battery somewhere to have it load tested. Then, after I'm sure I have a 100% good battery, I'll check the charging system: the rectifier/regulator, generator, and stator.

That's my plan. I'll let y'all know how it goes. Any further input is appreciated.
Your charging system sounds like it is not charging properly.
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Old 02-10-2011, 01:33 PM   #19
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Quote:
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18k on mine, even after a bad wreck that ground a hole in the stator cover.
31k on mine.
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Old 02-10-2011, 06:13 PM   #20
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