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Sportster & Buell Motorcycle Racing Talk about racing your Sportster motorcycle and/or Buell motorcycle.

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  #121  
Old 10th June 2014
hcw3 hcw3 is offline
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Join Date: Jun 2013
Posts: 80
Sportster/Buell Model: xr1200x
Sportster/Buell Year: 2011
Sportster/Buell Model #2: XL1200s
Sportster/Buell Year #2: 1999
Other Motorcycle Model: KTM 450SMR
Other Motorcycle Year: 2005
Reputation: 8478
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Quote:
Originally Posted by maru View Post
I agree one hundred percent that you should run race gas as insurance against detonation. It does not surprise me that you had it and it is a well known killer of hardware.
It's expensive and I figured it was a stock motor....now the only thing that is is expensive, is the lesson learned.

Quote:
Originally Posted by maru View Post
I hope this was helpful to you. I sometimes come off stronger in www land than in person, but generally I am trying to save folks grief and not create it.
Very helpful. I've been racing a while but HD's are new to me.
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  #122  
Old 10th June 2014
cycowrencher's Avatar
cycowrencher cycowrencher is offline
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Sportster/Buell Model: XLH 1200
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Quote:
Originally Posted by hcw3 View Post
The pipe and intake was made by Tony Bangma at BA Motorsports 616-299-4181. Modest HP, but big torque gain.

Brakes were adequate but weak, I'm using s3 race compound pads from GOLDfren that help, but I wish I had the brakes from my XR1200. Forearm pump from braking wasn't an issue, it's was cold both track days, which helps that. Clutch pull on the other hand is something I will likely have to work on. It's a four finger pull and i really need it to be 1 or 2.

Can't say enough about how much it helps having a great suspension guy, Bruce Blake at Michigan Engineering. Every thing has been sprung and valved for how I ride and and tested on a suspension dyno. Makes the suspension on my XR feel arcane which is saying a lot because the Showa stuff on the XR is quite a bit newer technology.

Next stop is the AHRMA races at Road America 6/7-8.
Replace the cable if its original. I went with a barnett cable, and its a hundred times easier to pull.

Sent from my LG-LS995 using Tapatalk
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  #123  
Old 10th June 2014
NRHS Sales NRHS Sales is offline
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defnately get the colder plugs as Maru said. The 10R12 HD, NGK is a 9 heat range, Denso is the IXU24. I use the Densos.
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  #124  
Old 12th June 2014
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Phelan Phelan is offline
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Sportster/Buell Model: EBR 1190 SX
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Dan, I need to order some of those Densos from you, probably Friday. I need new plugs anyway .
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  #125  
Old 14th June 2016
hcw3 hcw3 is offline
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Join Date: Jun 2013
Posts: 80
Sportster/Buell Model: xr1200x
Sportster/Buell Year: 2011
Sportster/Buell Model #2: XL1200s
Sportster/Buell Year #2: 1999
Other Motorcycle Model: KTM 450SMR
Other Motorcycle Year: 2005
Reputation: 8478
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Default Still plugging away

I raced the sportster the Last two weekends Gingerman and Road America. Middle to late pack finishes, rider talent or lack thereof is a big limiting factor. Bike has fresh motor, but isn't quite right, i need more rev's. Gonna get some dyno time here soon to look at ignition and fueling.
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  #126  
Old 14th June 2016
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sportsterpaul sportsterpaul is offline
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Sportster/Buell Model: XL1460C
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Thanks for returning with an update, been awhile, good luck with your racing.
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  #127  
Old 11th August 2017
45Brit 45Brit is offline
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Sportster/Buell Model: XL
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Quote:
Originally Posted by A 4 liter V8 eater View Post
oh wow, 16.5! I take it you just have to accept that the chain rubs the swingarm pivot. It is very important to adjust the chain tension with the swingarm in the squatted position where the axle, SA pivot, and trans output all line up. In the picture above, the chain looks like it may be tight enough that the first bump will trash the wheel bearings and the trans output bearing.
My stock frame, rigid Evo 883R based Flat Track bike has rubbing strips fitted for that reason. They look like primary chain tensioner shoes bolted to the swingarm..

https://flic.kr/p/WY5bxu
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  #128  
Old 12th August 2017
molochnik molochnik is offline
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Sportster/Buell Model: M2; a couple solid-mounts
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hcw3, I'm curious about what kind of rubber you've using. I read through your whole thread and saw you mentioned Avons and some chattering on downshifts...which I suppose happens with any brand.
Are you running stock wheel sizes?
Either way, would you be willing to provide a little insight on what tires/sizes you've tried?

Bike looks good, by the way. I'm considering putting something together with either a 2000 or 2002 frame I've got hanging around (just need to decide which one I want to cut) and a 2000 Buell M2 I rarely ride.
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