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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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  #1  
Old 13th May 2008
xena's Avatar
xena xena is offline
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Sportster/Buell Model: 1212 conversion/497 cams
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Thumbs up Xena's 1212 Conversion - story inside!

Yeah baby it's done! I did an NRHS 1212 conversion
on my Sporty. Just me, my factory manual, tips from NRHS
web site, and some great notes from some XLF members.
NRHS bored a set of cylinders I bought from XLF member
sportsterideragogo (thanks again Gary!), and I got the
10:1 reverse dome pistons with cometic top end gasket kit.
Kept stock heads, stock cams.
Thanks to everyone who contributed to the info on this forum.
It helped me a lot.
I put the bike back together on Friday and did the heat cycles
and the 20 mile ride between Friday and yesterday.
Tomorrow, XLF Member Racerwill who was actually going to
help me put the bike together tomorrow, will be helping me
get the float bowl screws out so I can bump the main jet
up. Other than that she's good to go.
Here are some pictures.


NRHS goodies


Disassembly:






Cylinders on

Heads on



Engine buttoned up
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1212 Conversion 10:1 CR
SE 497 Cams, E1 clutch, Python 3 Slip ons
TC88A running Xena's Black Panther Map

My 1212 Conversion Thread
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Last edited by xena; 25th July 2010 at 06:24..
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  #2  
Old 13th May 2008
bud095 bud095 is offline
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nice ,i liked mine alot better after the conversion also
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  #3  
Old 13th May 2008
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xena xena is offline
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Sportster/Buell Model: 1212 conversion/497 cams
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Video of one of the heat cycles and yeah I did kick up
the idle a bit after shooting this vid.


Last edited by xena; 25th July 2010 at 06:17..
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  #4  
Old 13th May 2008
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jimmyheadgear jimmyheadgear is offline
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Congrats on the great work!!
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  #5  
Old 13th May 2008
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spatial.hd spatial.hd is offline
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Congratulations! Can't wait to read about how it rides.
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[URL="http://xlforum.net/photopost/showgallery.php/cat/500/ppuser/3894"][IMG]http://xlforum.net/photopost/data/500/Spatial20070908d3.jpg[/IMG][/URL]
2006 XL 1200 Roadster Fire Red Pearl ---- [SIZE=1][URL="http://xlforum.net/forums/showthread.php?threadid=96044"]My dyno reports[/URL][/SIZE]
[SIZE=1]
[SIZE=4][SIZE=3][URL="http://www.freebase.com/view/guid/9202a8c04000641f8000000006fb5c28?domain=%2Fuser%2Fspatialed%2Fmotorcycle"]SHORT BUS ONE[/URL]

[/SIZE][/SIZE][/SIZE]Love every mile: city, country, mountain, highway...
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  #6  
Old 13th May 2008
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EGNBLU EGNBLU is offline
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Looks like fun, Congrats.


Jimmy
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  #7  
Old 13th May 2008
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Weo Weo is offline
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Congrats!
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  #8  
Old 13th May 2008
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That was easy wasn't it?.... good to go... everyone should build on their bike... and not just bolt chromey stuff on... ZOOM ZOOM time.
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Old 13th May 2008
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Congratulations, thats great, hey if the average monkey at the stealer can do it! Those float bowl screws are really tough you might want to get a few extras in advance. I found that taking the whole carb off and turning it upside down on a work bench. Then tapping the end of the screw driver with a hammer while twisting it helped to loosen them. You do need a third hand for this, Good luck and enjoy the ride.
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Old 13th May 2008
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nalakk nalakk is offline
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Congratulations. Great job. Looks and sounds great. Many happy miles.
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