hi can anyone advise of best 2 stroke oil or recommended for my ski thanks its a 1999 slh also I want to disconnect oil feed and just pre mix what would be best ratio 100-1?
Why do you want to disconnect your oil injection pump and bother with pre-mix? It should be working fine (they rarely fail). I have a 1995 GTX by Sea Doo with the 2 cycle, and I use the oil injection pump...works great.
Check the oil manufacturer's recommendation, but 40:1 is safe. The benefit of the oil pump is that it is variable with throttle. You will use a lot less oil, but obviously your call.....