999 EFI blowen blk smoke

Discussion in 'Engine, Fuel and Exhaust' started by frankslagoon, Apr 11, 2015.

  1. frankslagoon

    frankslagoon New Member

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    My 99 EFI has run super until recently he seems to be running real rich. when I start it cold it ldles up for a minute then comes down perfect. if I shut it off and start again it runs real rough and blows blk smoke. we set the TPI to .275 V and replaced AT sensor and gasket. injectors don't seem to be leaking. air cleaner is clean Bike is all stock. after 2 or 3 hundred miles the plugs foul out. The bike is 100K bike but dealer says it's still pretty tight. Any ideas?
     
  2. fin_676

    fin_676 Experienced Member Staff Member Moderator Contributor

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    As a quick thought too rich may be not enough air ie the air cleaner may be blocked or in need of replacement or cleaning

    Brian