Misfire? - Wrist Twisters
 
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post #1 of 13 Old 09-29-2008, 09:32 AM Thread Starter
Milites Gregarius
 
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Misfire?

I am new both to this forum and 919 ownership. I have an 07 919 and I have about 1,000 miles on it.

When the bike is just getting warm, high gear acceleration produces a glitchy, almost misfire symptom. It has done this before also when riding two up and warm. One day i decided to "accelerate" through the problem and produced a clutch slip. Has anyone experienced this? I have since decided to keep the bike out of top gear for the first ten minutes of riding and have not had the problem again.

I would appreciate any help with this.

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post #2 of 13 Old 09-29-2008, 09:46 AM
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We get a lot of fueling concerns from new guys on this forum. The chance that there is anything wrong with your bike is slim and anorexic. @1K miles I'd bet nearly all that your clutch isn't slipping. Your bike is fuel injected. It passed EPA, which means it isn't as smooth as a good carburator. It's a 4 cylinder Honda . Let that engine turn. "High" gear, or 6th as we call it isn't for accellerating. You have 5 lower gears for that. Ride it like you have 3 more just like it in the garage.

If you're still not happy, you may want to try a PowerCommander. I've had really good luck with my PowComs. There are others here who haven't.

Good Luck, wellkomen.

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post #3 of 13 Old 09-29-2008, 09:58 AM Thread Starter
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Thanks for the response. I think you're right as to run it higher on the RPM's, and otherwise all is good.

The clutch slip was a one time thing, just wish I knew enough to know why, but it seems the problem is stopped by using RPM's vs being nice to it when just starting out.

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post #4 of 13 Old 09-29-2008, 10:39 AM
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I once experienced a slipping clutch on my 919. Like Sniper said...it was not a problem with the bike. The sleeve that the clutch lever rides in had rusted up just a bit on me and was not letting the clutch fully engage. I took it apart, cleaned it up, and now it works better than when I first picked it up. Unless you brand new bike has been spending all it's time outside in the rain, this is probably not your issue though.

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post #5 of 13 Old 09-29-2008, 11:10 AM
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i think this is a luging issue. just use 1-5 to get up and go. you dont have to stay out of 6th just dont excell hard in 6th. unless you toped out 5th!!!

2007 CB919 37 mi Aug 20 2008
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post #6 of 13 Old 09-29-2008, 11:35 AM
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At what speed are you experiencing this issue in 6th gear? If it is 40-50 mph you are just lugging it. If it is up at 60-70 you should be able to accelerate without an issue. The guys are right that you won't have near the acceleration you would if you downshifted. You shouldn't be afraid to let that baby rev, you won't hurt it. But, you also shouldn't have to rev it if you don't have to. That's the beauty of the 919, it has a really good midrange.

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post #7 of 13 Old 09-29-2008, 12:04 PM
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try an oil change if it happens again. Mine does it whenever the oil is going bad.

'04 919---40k----6/18/10 SOLD

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post #8 of 13 Old 09-29-2008, 12:14 PM Thread Starter
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It happens a around 4000 rpm around 60 mph range. I have a tendancy to be "nice" to an engine for the first few miles of warming up, trying to be nice to a new bike.

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post #9 of 13 Old 09-29-2008, 12:23 PM
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Nice, is what you are to your Mother.

Now get on that thing, and don't come back until you've bounced of the rev limiter a couple of times.

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post #10 of 13 Old 09-29-2008, 12:24 PM
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Quote:
Originally Posted by zookmor View Post
try an oil change if it happens again. Mine does it whenever the oil is going bad.
i agree with zook... put some fresh oil and filter and then see ... i bet ya a dollar the problem disappears...



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post #11 of 13 Old 09-29-2008, 12:25 PM
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Quote:
Originally Posted by zookmor View Post
try an oil change if it happens again. Mine does it whenever the oil is going bad.
Quote:
Originally Posted by Heath View Post
It happens a around 4000 rpm around 60 mph range. I have a tendancy to be "nice" to an engine for the first few miles of warming up, trying to be nice to a new bike.
beat it like it owes you money... its a honda 12 months unlimited mileage warranty... i sell them



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post #12 of 13 Old 09-29-2008, 12:30 PM Thread Starter
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Thanks for the replies.

So Barton, does the baflectomy void my warranty?

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post #13 of 13 Old 09-29-2008, 12:50 PM
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Quote:
Originally Posted by Heath View Post
Thanks for the replies.

So Barton, does the baflectomy void my warranty?

i stuck my head in service and asked the service writers and they said yes... more or less.... anything that is damaged that could be blamed on the exhaust will not be covered... do like i did and keep the stock exhaust in a closet in case it has to go in the shop... the shop here did my pc3 so its covered under the warranty..



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