I tried adding a can of Seafoam fuel cleaner to a tank of gas -- wow, nearly instant improvement & was very noticeable. carb was already clean/set. It raised mpg by >3 mpg for the tank, that's even while still getting on it quite a bit to clean out carbon.

 

Really? Plain old white and red can of Seafoam?

 

if it made that much difference run another to finish cleaning ,,i like Tectron to

 

not sure on different types of Seafoam - my first use. here's a link to the type I used. http://www.seafoamsales.com/motorTuneUpTechGas.htm

good idea on running a second can through tank of gas -

 

thats what i use

 

Yup! That's plain ol' seafoam. Maybe I should try some.