RE: spark knock under 3000 rpm
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RE: spark knock under 3000 rpm - 9/16/2007 9:28:08 PM
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RICHS65
Posts: 215
Joined: 6/12/2006
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What mods do u have on your biike?
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2008 CBR1000RR Limited Edition Black/Grey Metallic Ordered and Waiting.
Ride Safe, Ride To YOUR Ability, Enjoy The Open Air Freedom Of The Road.
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RE: spark knock under 3000 rpm - 9/17/2007 4:17:12 AM
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SD2007
Posts: 262
Joined: 3/24/2007
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I disabled the intake flapper, everything else is stock.
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RE: spark knock under 3000 rpm - 9/17/2007 6:15:31 AM
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RICHS65
Posts: 215
Joined: 6/12/2006
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Just use the stock cbr1000 map that's on the power commander website.
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2008 CBR1000RR Limited Edition Black/Grey Metallic Ordered and Waiting.
Ride Safe, Ride To YOUR Ability, Enjoy The Open Air Freedom Of The Road.
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RE: spark knock under 3000 rpm - 9/17/2007 4:37:03 PM
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mininsx
Posts: 212
Joined: 12/13/2005
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I don't think it's spark knock. Every message board I've read says it's the camchain/tensioner that's making the noise. One of my buddies who had a 1KRR and had a GSX-R750 before that said that his Gixxer was much noiser than the Honda. He had an '04 CBR1000RR and his made the same noise as mine!
< Message edited by mininsx -- 9/19/2007 5:12:20 PM >
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''08 Concours 14
''05 CBR 1000RR Repsol
''04 VW R32
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RE: spark knock under 3000 rpm - 9/18/2007 4:50:09 AM
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SD2007
Posts: 262
Joined: 3/24/2007
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The odd thing about this noise is that it's totally absent from 0-29% throttle. But once I cross the 30% mark there's a sudden onset of this ping type sound that doesn't seem to get louder with further opening of the throttle. I can't conceive of how the valves or cam chain could be the cause of this. It seems unlikely to me, but I suppose it could be some kind of piston slap or knocking in the bottom end because the forces on those parts increase with load (throttle opening). I still think it's most likely to be some kind of combustion phenomenon or something related to the fuel injection / throttle bodies.
Hopefully I'll have time this week get my PCIII installed, and hopefully I'll have the same success RICHS65 did.
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RE: spark knock under 3000 rpm - 9/18/2007 8:18:52 AM
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RICHS65
Posts: 215
Joined: 6/12/2006
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SD2007
Let us know how it worked out when your done with the intall.
_____________________________
2008 CBR1000RR Limited Edition Black/Grey Metallic Ordered and Waiting.
Ride Safe, Ride To YOUR Ability, Enjoy The Open Air Freedom Of The Road.
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RE: spark knock under 3000 rpm - 9/18/2007 5:07:50 PM
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SD2007
Posts: 262
Joined: 3/24/2007
Status: offline
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quote:
ORIGINAL: RICHS65
SD2007
Let us know how it worked out when your done with the intall.
I finished the PCIII install (with Dynojet map for a stock bike) and took a quick test drive. Bad news... The engine knocks just the same as it always has.
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RE: spark knock under 3000 rpm - 9/19/2007 8:06:03 AM
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RICHS65
Posts: 215
Joined: 6/12/2006
Status: offline
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I would try a couple of maps first to see if there are any changes to your problem. If that does not work, take the bike to the shop for them to look at it. There is definatley a problem with it. No way it is normal for the bike to knock like that after a fuel managment system is installed.
_____________________________
2008 CBR1000RR Limited Edition Black/Grey Metallic Ordered and Waiting.
Ride Safe, Ride To YOUR Ability, Enjoy The Open Air Freedom Of The Road.
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RE: spark knock under 3000 rpm - 9/19/2007 8:08:48 AM
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RICHS65
Posts: 215
Joined: 6/12/2006
Status: offline
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One more thing enable the intake flapper back, just to make sure that has nothing to do with it.
_____________________________
2008 CBR1000RR Limited Edition Black/Grey Metallic Ordered and Waiting.
Ride Safe, Ride To YOUR Ability, Enjoy The Open Air Freedom Of The Road.
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RE: spark knock under 3000 rpm - 9/21/2007 2:52:28 PM
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mininsx
Posts: 212
Joined: 12/13/2005
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quote:
ORIGINAL: SD2007
Thanks for the links. I agree these engines are noisy, but I don't think the pinging sound that's associated with the throttle is cam chain noise. The threads on 1000rr.net offer a variety of interesting opinions but don't really contain any technical discussion.
Yeah, I know, we're not likely to find technical info on message boards. I stopped worrying about the noise a long time ago, myself. The engines in these bikes would be smoking or blowing up on a regular basis if there was something really wrong with them!
_____________________________
''08 Concours 14
''05 CBR 1000RR Repsol
''04 VW R32
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RE: spark knock under 3000 rpm - 10/6/2007 3:24:46 PM
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evenfaster1
Posts: 3
Joined: 10/3/2007
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i have just brought a new blade ,and have the same noise that you are all getting ,and tried honda technical to get an explanation ,to no avail,i have spoke to some top technicians who build engines for b.s.b.and they reassured me the 1000rr was bomb proof .i have had a lot of bikes ,in my opinion this noise could be down to either the flapper valve in the air box or maybe incorectly set exup valve.it is pissing me off to.so come on honda get your act together and give us an answer.i am sure it shouldent be a problem for such a big manufacturer to sort a small noise.....otherwise i will have to trade in for another gixxer thou....
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