Capotec2015 Posted August 27, 2016 Share Posted August 27, 2016 HI, Looking for some advice if I may. I have a used ROS 125 and seems to start and function ok but I have noticed black oily substance coming from the exhaust manifold area, not a vast amount but there nonetheless, where the pipe bolts to the engine. It drips down onto the expansion area of the pipe but I can also see little streaks of black on the wooden prop. Can anyone advise what this may be and how to resolve if considered problematic? thanks Quote Link to comment Share on other sites More sharing options...
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