
 try this web-site
http://www.iboats.com/cgi-bin/ubb/ul...;f=36;t=000016  
If that don't work go to 
 
www.iboats.com     click on forums scroll down to  outboard non repair discussions  look under call name roscoe   DECARB
If you use seafoam deep creep make sure you read directions before you buy to make sure it is for your motor Some motors you spray it in the carbs and in older models you go thru the fuel line.
I'm no mechanic
Napa carries it  and Auto zone just started carrying it!!! 
 
 