Please help! Fuel problem I think. - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 7 (permalink) Old 05-17-2013, 09:36 AM Thread Starter
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Please help! Fuel problem I think.

So I know I have seen this issue on the site before, but I'm at work and our computers are soooo slow and it would take hours to search it. So I was out riding all day on Wed. I got about 3 miles from home and the bike started bucking pretty hard. At all speeds under light to heavy throttle. It also died out when at a stop light at idle. I limped it home and put it away. Have not looked at it yet. Was planning on looking at it this weekend, Just trying to get some idea's on where to start.

Info: 2002 RC
22k on the clock.

Any help would be good guys. Thanks in advance.
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post #2 of 7 (permalink) Old 05-17-2013, 10:57 AM
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Any codes?
With the limited amount of info, it's hard to tell.
Bucking sounds like electrical, abrupt cutting out.
What does your instrument panel do when this happens?

My first hunch was fpr, until you said bucking.
Make sure you battery connections are clean and tight.

Need more symptoms...

John, 2000 RC51 #000100

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post #3 of 7 (permalink) Old 05-17-2013, 11:43 AM Thread Starter
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Quote:
Originally Posted by jondog9 View Post
Any codes?
With the limited amount of info, it's hard to tell.
Bucking sounds like electrical, abrupt cutting out.
What does your instrument panel do when this happens?

My first hunch was fpr, until you said bucking.
Make sure you battery connections are clean and tight.

Need more symptoms...
Thanks for the reply. I understand that the info I gave was limited. There are no codes on the dash when it happens. Bike was fine all day. It was warm out but I dont really think that had anything to do with it. Easiest way for me to descride it is it felt like the bike was not getting fuel. But its real quick. Picture going to accelerate and someone flicking at light switch on and off over and over again as you are trying to go. Pretty scary to be honest cause it does not give you much time to react to the lose and gain of power. There is a PC3R on the bike and Jardine Slip ons. Thats about it. Never had this problem before.

I did get a chance to search a bit on here and as you said I might want to start with the (fpr).
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post #4 of 7 (permalink) Old 05-17-2013, 12:59 PM
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The fpr is an easy check.
But it still sound electrical to me. You even suggested that with your light switch analogy.
Check your battery connections for sure.
While you have the gas tank lifted to check the fpr, unplug the PCIII harness from the bike harness so as to bypass it. Try running the bike without the PC for a bit and see if it still bucks.

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post #5 of 7 (permalink) Old 05-17-2013, 02:26 PM Thread Starter
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Originally Posted by jondog9 View Post
The fpr is an easy check.
But it still sound electrical to me. You even suggested that with your light switch analogy.
Check your battery connections for sure.
While you have the gas tank lifted to check the fpr, unplug the PCIII harness from the bike harness so as to bypass it. Try running the bike without the PC for a bit and see if it still bucks.
Cool thanks. I will try it all tomorrow. Thanks again for the tips!!
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post #6 of 7 (permalink) Old 05-17-2013, 02:50 PM
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I agree with jondog, that's where I would start with it too. And both really easy to do.

With just having some electrical problems myself, I would also suggest to look over your wiring harness for rub marks and or corrosion in any and all connectors.

And in the words of our resident submariner "use dielectric grease"

James

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post #7 of 7 (permalink) Old 05-17-2013, 07:05 PM
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Also look for any pinches or bruising of the wiring harness around where the fuel tank pivots.
That's a tight area where the harness passes and it's not the first time a wire got pinched or broken in that area, causing electrical issues.
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