Help-bike cut out while riding - Suzuki GSX-R Motorcycle Forums Gixxer.com

 
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post #1 of 9 (permalink) Old 07-27-2010, 03:31 AM Thread Starter
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Unhappy Help-bike cut out while riding

I need some help with my GXSR, as it cut out unexpectedly tonight while riding. I have a K4 GSXR600 with about 20k miles on it. No exhaust or fuel system mods or upgrades. I bought it about six months ago and it’s performed flawlessly before tonight. I let it warm up and then started out at the good clip. I rode first gear to about 10k RPMs then up shifted as normal. I effed up on the gear shift a little, and didn’t shift all the way past neutral. The RPMs may have hit redline for a split second. It pulled strong for a good mile, and I had settled into my normal cruising speed of about 60mph. Then disaster, it felt like it was losing power and started bogging down. Since I was on an uphill stretch, I down shifted and applied throttle. The bike continued to lose power, and no amount of throttle would accelerate the bike. I pulled over on shut it completely off. After waiting a sec and starting it up again, it accelerated as normal for about thirty seconds, although the engine sounded louder and somehow harsh. After about thirty seconds, it began to lose power exactly as before and I pulled over to shut it off. After shutting it off the second time, I could not get it to run for longer than a few seconds. The lights and electronics work perfectly, and the fuel pump primes as normal. The engine turns over and starts easily, but then sputters and cuts out. Applying throttle can extend the run time, but eventually it shuts off. After pushing it a mile to a parking lot, I tried to start it again. It started strong and the engine sounded smooth and strong as normal. I revved it a couple times and began to think nothing was wrong with it. About a minute later the same thing happened; the tach fluctuated sporadically and then the engine cut out. I got a ride home and plan to go pick it up tomorrow. Since I’m relatively new to motorcycle maintenance, I literally have no idea where to start. Any help is appreciated.

Last edited by MSantini; 07-27-2010 at 04:27 AM.
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post #2 of 9 (permalink) Old 07-27-2010, 04:08 AM
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Re: Help-bike cut out while riding

Quote:
Originally Posted by MSantini View Post
About a minute later the same thing happened; the tach fluctuated sporadically and then it cut out.
What exactly cut out? Did the guage cluster loose power? If so the whole thing or just a part of it?

I might be absent for the answer but if the whole thing cut out check the 30 amp fuse under the seat. If in doubt, change it see if that works.
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post #3 of 9 (permalink) Old 07-27-2010, 04:25 AM Thread Starter
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Re: Help-bike cut out while riding

No the gauge cluster is fine, all the lights are fine. Its the engine that cuts out.
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post #4 of 9 (permalink) Old 07-27-2010, 04:42 AM
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Re: Help-bike cut out while riding

FI code?
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post #5 of 9 (permalink) Old 07-27-2010, 05:17 AM Thread Starter
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Re: Help-bike cut out while riding

Gonna get it tomorrow when I go pick up the bike. I'll post it then.
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post #6 of 9 (permalink) Old 07-27-2010, 07:36 AM
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Re: Help-bike cut out while riding

Check the battery cables, make sure they're tight.
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post #7 of 9 (permalink) Old 07-27-2010, 08:31 AM
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Re: Help-bike cut out while riding

Doesn't sound electrical but 2 areas anyway to look at...fuel and spark.
With pump priming maybe badly clogged filter?
Sensor possibly affecting spark?
Good luck, keep us posted.
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post #8 of 9 (permalink) Old 07-27-2010, 06:32 PM Thread Starter
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Re: Help-bike cut out while riding

So I feel like the worlds biggest idiot. After assuring every one that I could not possibly be out of gas because I fueled not 100 miles ago, I popped the cap and noticed that the tank was bone dry. In my meager defense, I usually get over 200 miles to the tank, and my gas light never went on. The gas light has worked in the past, so maybe somthing wrong there......anyway, thanks for all the advice, and don't pull a muscle laughing
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post #9 of 9 (permalink) Old 07-27-2010, 06:46 PM
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Re: Help-bike cut out while riding

Wow, just wow.
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