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Sportster Motorcycle Engine Conversions Advice, questions, and tips for 1200, 1250, 1340, 1450 etc... for Sportster and Buell motorcycle engine conversions

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  #11  
Old 30th June 2021
xena's Avatar
xena xena is offline
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Join Date: Nov 2004
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Sportster/Buell Model: XL883 w Hammer 1275
Sportster/Buell Year: 2004
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Quote:
Originally Posted by Highly-Dangerous View Post
Yeep!!!! welcome to the Club!!!

I changed the "D" for "W"s cams and left the original 883 gearing in mine.... she REALLY goes!!!

Happy Birthday Xena (in case I miss the day)... I am at your six... three years younger than you.

The gearing is very low for sure! I have the 29T pulley but maybe I’ll ride it for a couple of months and see how I feel about installing it then. My bday isn’t until mid August I was just saying I was contemplating either a new Low Rider S or the 1275 kit and the 1275 won. I finished break in on Saturday, is yours done?
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(¸.•´ (¸.•´ (¸.•*´¯`*•--->Xena
Hammer Performance 1275 kit w flat tops, 2007 1200 heads with Hammer Impact Service, Hammer Performance custom billet intake manifold, Stock carb, N65C needle w 45/185 jets, K&N air cleaner, SE 497 Cams, Energy One clutch w 15% spring, Python 3 Slip ons, Dynatek DSPT-1 ignition on 28b



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  #12  
Old 2nd July 2021
Mr.Rowdy's Avatar
Mr.Rowdy Mr.Rowdy is offline
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Sportster/Buell Model: XL883
Sportster/Buell Year: 1993
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Are you still running a belt? Well, NM, you obviously are with a 29 front. I assume you have a 61 tooth rear pulley. I think that's right
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  #13  
Old 2nd July 2021
xena's Avatar
xena xena is offline
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Join Date: Nov 2004
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Sportster/Buell Model: XL883 w Hammer 1275
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Quote:
Originally Posted by Mr.Rowdy View Post
Are you still running a belt? Well, NM, you obviously are with a 29 front. I assume you have a 61 tooth rear pulley. I think that's right
Yes a belt and no plans to change that but the stock 27T front sprocket is still on. I have a 29T in the box. I never bothered to look up the one on the back wheel but this thing is a stump puller big time I just want a little more rpm on the highway so that’s why thinking of putting on the 29T.
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  #14  
Old 2nd July 2021
rocketmangb's Avatar
rocketmangb rocketmangb is offline
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Sportster/Buell Model: XL1200C
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According to Ronnies you have a 28 tooth pulley not a 27
I think the rigid mounts ran a 27
I run the 28 on my big hp 1250 with much fun
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2006 Sportster XL1250C
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Max Power, 111.47
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Best 1/4 Mile ET to date 11.85
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Build by Jester Motorwerkz West
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  #15  
Old 3rd July 2021
xena's Avatar
xena xena is offline
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Join Date: Nov 2004
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Sportster/Buell Model: XL883 w Hammer 1275
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Quote:
Originally Posted by rocketmangb View Post
According to Ronnies you have a 28 tooth pulley not a 27
I think the rigid mounts ran a 27
I run the 28 on my big hp 1250 with much fun
Ah ok thx. I still think I want to install the 29T. Bought it years ago just never installed.
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  #16  
Old 4th July 2021
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rocketmangb rocketmangb is offline
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Sportster/Buell Model: XL1200C
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FWIW
Street tire,foot shifted,no wheelie bar
My bike ran 11.85 @ 115 mph
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  #17  
Old 12th July 2021
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xena xena is offline
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Hi guys checking in. Between 100 degree temps followed by days and days of hard rain, I was finally able to do a 250 mile day to Western MA and back on Saturday . Hammer Performance knocked it out of the park, and that being said while still not having a chance to go WOT with this thing. I’ll say it again if you’re thinking of switching to a bigger bike to get more power, consider a Hammer 1275 top end first. I’m so glad I went this route. Can’t rip the smile off my face.
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  #18  
Old 13th July 2021
84rzv500r 84rzv500r is offline
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Sportster/Buell Model: XLH 1200 S
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now i want one for my 99S and build my XR-1000 up a little more... my motto is if too much is enough then way too much is just right
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1999 XL 1200 Sport RX, SE 7500 ignition, SE air filter, DynoJet, K&N, Cone Engineering 2:1 pipe, Storz Steering damper, with 2012 XR1200X perf forks, 3.5 x18" wheels front and rear, Galfer stainless lines, XR1200 4 piston front calipers, 18" dunlop trailmax mission 120/90 and 140/80 rear XR1200X perf shocks with 1" lift blocks...

1983 XR-1000S to XR-1000RX Project Build Thread
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  #19  
Old 18th July 2021
xena's Avatar
xena xena is offline
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Sportster/Buell Model: XL883 w Hammer 1275
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The bike runs amazing but we have been getting slammed with rain so I’m still only about 1000 miles on the 1275 kit.
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  #20  
Old 18th July 2021
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ChinCactus ChinCactus is offline
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Yeah, the whole north east has been getting slammed the past few weeks. Not currently raining, going riding!
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