Iron head sportster oil smoke from rear cylinder on start up [Archive]

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redman4063

Nov 28, 2010, 05:57 PM

Harley Davidson 1979 iron head sportster blows oil smoke from rear cylinder only on start up.
Clears after riding for 5 minutes. Checked oil pump and appears OK any clues?

darthsinister

Nov 29, 2010, 03:08 PM

Sounds like your valve seals are bad on the rear cylinder.