Have the above...and here it goes. I have been told to get rid of the auto blend and go to a straight 50.1 mixture.(due to age)...HOW can I tell if the auto is working correctly?...I'm not gonna' wait for an alarm to go off! Can you also tell me why it says special fifty on my motor and if there is any difference between the two? I have also been told that water in gas is something to pay alot of attention to (Florida relatives...ethanol gas they believe is responsible) Should I get an inline water seperator?<sp>.....motor runs strong but only starts when choked...even after running @ 1500-2500rpm. for 5 min....I then need to choke it and start it at half throttle....it will not idle at all....help and thank you!