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06-11-2004, 06:38 AM
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#1 (permalink)
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Senior Member
Join Date: Aug 2003
Posts: 133
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What spark plugs?
My S4R-sneezes/stalls at take off, been in a couple of times for it, so fix it myself as normal eh?, balanced throttles nearly sorted it, so i had the plugs out, they were loose as well (which would cause the sneezy stuff anyway) and low and behold they have a gap of 1.7mm, which is slightly bigger than the 0.5/0.6 the book says, so, whats the best plugs I can fit?-any idea`s?
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06-11-2004, 06:46 AM
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#2 (permalink)
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Senior Member
Join Date: Nov 2002
Posts: 1,305
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Re: What spark plugs?
I'm curious-what plugs were in there? I think the owners has the sizes/types of pluts in it
__________________
Why would I want to mod it?<br />DP clutch cover, C-Cat spring keepers, galv. <br />DP inspection hole cover<br />C/F abbreviated tail<br />PCIII USB<br />DP Termignoni slipons, open airbox, & ECU<br />CRG mirrors<br />C-Cat Frame Sliders<br />All c/f clearcoated<br />Silver leaf "Ducati" emblem<br /><br />2007 Ducati 1098 S Tricolore<br />2006 Yamaha TTR-230<br />2006 Yamaha Bruin 350
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06-11-2004, 07:07 AM
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#3 (permalink)
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Senior Member
Join Date: Aug 2003
Posts: 133
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Re: What spark plugs?
Champion ra59gc-which is what the Haynes says it should have-i read a road test that said it`s a common fault as the bike broke down on the test, reckoned the plug had been burnt away so i thought i`d have a look
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06-11-2004, 07:11 AM
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#4 (permalink)
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Senior Member
Join Date: Nov 2002
Posts: 1,305
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Re: What spark plugs?
I'm guessing those are the cheaper ones from the book...I thought about getting the NGK DCPR9EVX to put in there, if they weren't stock already.
I haven't gotten into the spark plugs/wires at all on this bike yet. What's with the giant ends on the plug wires?
__________________
Why would I want to mod it?<br />DP clutch cover, C-Cat spring keepers, galv. <br />DP inspection hole cover<br />C/F abbreviated tail<br />PCIII USB<br />DP Termignoni slipons, open airbox, & ECU<br />CRG mirrors<br />C-Cat Frame Sliders<br />All c/f clearcoated<br />Silver leaf "Ducati" emblem<br /><br />2007 Ducati 1098 S Tricolore<br />2006 Yamaha TTR-230<br />2006 Yamaha Bruin 350
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06-11-2004, 08:05 AM
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#5 (permalink)
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Senior Member
Join Date: Feb 2005
Posts: 8,800
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Re: What spark plugs?
Those 'giant ends' on your plug wires are the coils.
I'm fairly certain the NGK's have a different size hex than the Champions. If that is the case, then half of your OEM toolkit is useless... :-/
I've got almost 12k miles on my original Champions, they still looked fine about 2k ago.
__________________
Nick<br />'02 S4 - Testa Rossa Scorta - Cherrybomb Cans..FIM ECU..Barnett basket..SBK Velocity Stacks<br />Mag Marchesinis..3X BrakeTech Iron..Brembo 4-pads..RaceTech G/V's..Ohlins 46PRCS<br />C'Cat Bars..Yoyodyne Slave..CRG L/S's and Black Shorties..Zumo550<br />'99 Cagiva Gran Canyon 900 - 16t front sprocket...Euro blinkers...TKC 80's...OEM W heads :P<br />[size=8pt] Captivated by her beauty | I knew it was my lifelong duty | - Mike Ness[/size]<br />[size=8pt]Flight Motorcycle Corp. Hired Gun.[/size]
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06-11-2004, 08:10 AM
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#6 (permalink)
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Senior Member
Join Date: Nov 2002
Posts: 1,305
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Re: What spark plugs?
Quote:
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Those 'giant ends' on your plug wires are the coils.
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sweet! is there any reason to change those plugs for higher-performance versions are is stock as good as it gets?
__________________
Why would I want to mod it?<br />DP clutch cover, C-Cat spring keepers, galv. <br />DP inspection hole cover<br />C/F abbreviated tail<br />PCIII USB<br />DP Termignoni slipons, open airbox, & ECU<br />CRG mirrors<br />C-Cat Frame Sliders<br />All c/f clearcoated<br />Silver leaf "Ducati" emblem<br /><br />2007 Ducati 1098 S Tricolore<br />2006 Yamaha TTR-230<br />2006 Yamaha Bruin 350
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06-11-2004, 08:21 AM
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#7 (permalink)
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Senior Member
Join Date: Mar 2003
Posts: 3,654
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Re: What spark plugs?
Stock "stick coils" are as good as it gets. NGK DCP family of plugs has same size hex as champion. ;D
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06-11-2004, 08:33 AM
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#8 (permalink)
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Senior Member
Join Date: Nov 2002
Posts: 1,305
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Re: What spark plugs?
[quote]Stock "stick coils" are as good as it gets. NGK DCP family of plugs has same size hex as champion.
__________________
Why would I want to mod it?<br />DP clutch cover, C-Cat spring keepers, galv. <br />DP inspection hole cover<br />C/F abbreviated tail<br />PCIII USB<br />DP Termignoni slipons, open airbox, & ECU<br />CRG mirrors<br />C-Cat Frame Sliders<br />All c/f clearcoated<br />Silver leaf "Ducati" emblem<br /><br />2007 Ducati 1098 S Tricolore<br />2006 Yamaha TTR-230<br />2006 Yamaha Bruin 350
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06-11-2004, 09:43 AM
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#9 (permalink)
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Senior Member
Join Date: Aug 2003
Posts: 133
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Re: What spark plugs?
Mine have done 2000 miles, probably reasonably hard miles and are knackered- 1.7mm gap
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06-11-2004, 10:33 AM
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#10 (permalink)
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Senior Member
Join Date: Nov 2002
Posts: 1,659
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Re: What spark plugs?
I imagine "someone" is going to try and correct me on this, but NGK does not make a correct heat range plug to fit the S4/S4R (9). Whatever it says on the NGK website is wrong (and this replaces a plug on their web site that was wrong, also). I've talked to an engineer at NGK, he admitted this was the case. You can get a NGK in a hotter, "8", heat range that will fit (and this is what some dealers are doing), but it is not right. NGK runs 140f degrees from one range to the next (smaller # is hotter). So, rider beware.
I'm running a Denso Iridium IXU27, which is the equivalent heat range to a NGK "9".
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