Well I have literally hundreds of questions relating to boats/fishing etc......but possibly best to start with this one. The boat we purchased recently (14ft Mayland) came with a 9.9 HP Mariner (shark?) 2 stroke outboard, could somebody possibly tell us the ideal mixture for this engine.......thanks........Colport. I have won an auction on ebay for a dealers manual for these engines but unfortunately the guy who sold it to me is currently in hospital........so are still clueless. If it helps at all we think the outboard is approx 10-15 years old? Serial number starts with CL.