Here is what I have done. It run on the muffs. take it to the river and nothing. Compression is 120 120 120 112. Carbs cleaned and rebuilt. new plugs, new fuel, water fuel seperator. I do have a manual. I just need a direction to go. lean rich mixture is adjusted per manual specs. when you can get it to go it runs great at all ranges except idle. run it wot all day it still doesn't want to restart. choke is fully closing on all carbs. Any direction would be great. thanks and happy boating.