Bike only stays on when being revved. - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 23 (permalink) Old 04-26-2012, 01:34 PM Thread Starter
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Bike only stays on when being revved.

It only turns off if you let go of the throttle.
Turns off instantly.

Why is this? What problems can I be looking at?
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post #2 of 23 (permalink) Old 04-26-2012, 03:55 PM
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Check your idle settings. There is an idle screw on the rt side of the bike just above where you add oil.



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post #3 of 23 (permalink) Old 04-26-2012, 07:43 PM
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Should idle at 1300 rpm. If this isn't the issue, check the Fuel Pressure Regulator.
https://www.rc51forums.com/forums/sho...light=fpr+drip
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post #4 of 23 (permalink) Old 04-26-2012, 07:52 PM
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1300 rpms really?? mine idles about 900
and it sounds about right
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post #5 of 23 (permalink) Old 04-26-2012, 07:56 PM
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Nope, the manual calls for 1300 idle speed.

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post #6 of 23 (permalink) Old 04-26-2012, 08:22 PM
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post #7 of 23 (permalink) Old 04-27-2012, 03:27 AM Thread Starter
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Could it because my fuel filter is clogged???

My bike only needs to idle at 1,000 rpms to stay on. (thats when im phsycially revving it with the throttle)

But when i let go of the throttle, it turns off.
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post #8 of 23 (permalink) Old 04-27-2012, 05:15 AM
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Download the Service Manual first and then take it step by step.
Easiest step is what madbuyer said....then you go deeper!


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post #9 of 23 (permalink) Old 04-27-2012, 02:19 PM Thread Starter
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I know it has nothing to do with my idle settings.
And thats because I was revving it a whole bunch to the rev limiter
and I think I clogged my fuel filter by doing so....

Sound right?
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post #10 of 23 (permalink) Old 04-27-2012, 02:28 PM
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Yes, it could be your fuel filter. But not my first guess.
If it were me, i'd check idle speed first. Get it adjusted to as close to 1300 as you can. Then if you still have the problem, I'll bet it's the fpr, before the fuel filter.
A clogged filter will be more limiting at higher rpm than at an idle. Seems like you'd see trouble at rpm's higher than an idle. But that's more of my theory and experience than a fact. I don't know how you 'check' a fuel filter, other than the obvious; to see if it flows. I usually just replace them. But it cant hurt to do that too, if your up to the task. It's inside the tank, and accessed from underneath.

One last thought, be sure your gas tank vent hose is routed properly and not kinked or clogged. I don't think that's the problem, but one of those things to check since you'll have the tank lifted.

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