Suzuki GN 250 New oil turns black - quickly.

Discussion in 'Bike Maintenance and Repair' started by kubikk, Friday at 9:46 PM.

  1. kubikk

    kubikk

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    Hi. GN250 1994. New oil gets black after driving appx 30-45min. After some time the oil becomes thin (dilutet) and smell
    of gasoline - not so much though. Suspected the oil rings to be worn out and removed cylinder to check.
    Piston and rings look absolute pristine. No blow-by or oil sludge build up. Compression measured earlier and ok.
    I noticed that the two oil rings and spacer dont move fully freely and stick a bit together. Also there is no spring action
    compared to the compression rings. The diameter of the oil rings is just a little bigger than the cylinder bore.
    Where do I go from here? Terje
     
    kubikk, Friday at 9:46 PM
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