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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 21st January 2020
Ztomasc Ztomasc is offline
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Default 1250 kit front cylinder exhaust smoking

I just recently put a 1250 kit on my 2019 iron 883. After doing the heat cycles I let the bike sit over the weekend before going on my 1 mile ride. When I started the bike up my front cylinder exhaust was dumping smoke. Pulled the spark plugs front one is wet looks like oil and smells like oil on the plug, rear plug is dry. Bike only has 1500 miles on it so I’m highly doubting it’s valve stem seals. My question is would the rings not being seated yet cause this? I am in contact with hammer performance just wanted to know what your guyses thoughts are.


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  #2  
Old 21st January 2020
NGOT8R NGOT8R is offline
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That doesn't seem right.. My 2019 Iron didn't smoke after I installed my Hammer 1250 kit.
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Old 21st January 2020
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Did you do a compression check?
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Old 21st January 2020
Ztomasc Ztomasc is offline
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I’m running a compression test today per hammers instructions. I’ll update you guys after I run the test.


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