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Author Topic: Black oil way too soon?  (Read 211 times)


  • Learner rider
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Black oil way too soon?
« on: November 15, 2017, 12:20:08 AM »

Got a used 05 gt650, and I have no clue how long it sat. I've gotten it running, however I'm having some issues with backfiring and spitting.
The main issue here is it hasn't left my truck bed and I only  run it for a few minutes at a time to diagnose problems. So using that, coupled with never reving the engine past maybe 5 grand (no tach) I'd say the oil is turning super black in around a quarter to half a mile. I have no reference to this engine so I have no clue if it has reduced power, responce, etc. Also have carbs turned out 1.5 turns. Does anyone know the factory settings?

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