Thanks Mike, very informative.

 

So aside from putting a can in your gas tank where/how do you hook it up on the engine? Thanks.

 

Your correct! Also another really good product is Yamaha ring free.You can get it in a pint bottle at any Yamaha Marine dealer,and just simply add it to the fuel.It cleans carbon out,cleans the fuel system including injectors,and you can do a "shock" treatment or just add a small amount to the fuel about every other tank. I think it's a little stouter than seafoam,but any of these work pretty good.

 

For the decarb,you simply pull a vacum hose off the intake and slowly let it suck the container dry then shut the motor off and let it set for 15-30 minutes before restarting.Then it's best to go for a little drive and blow the crap out.