ok, I've Tried 50:1 mixture outboard oil, I've tried 40:1 a small engine mechanic said try 40:1, Then today I did 16:1 w/ Stihl chainsaw oil. I'm getting fuel to Carb, but none getting to engine. if i pull plug out spray some ether in it, put plug back and crank it it will try to start on that. any suggestions. also is 1972 sea king 5hp air cooled?<br /><br />Does it need to be in water when starting, thats where i've had it.<br /><br />Thanks