Chrysler motor 25 hp

[deerhunt]

I have a 1983 25 hp Chrysler a

I have a 1983 25 hp Chrysler and my problem is that lately after each use i have to change spark plugs because my old ones want allow my motor to go over half throttle. As soon as i put new ones in and sometimes the old ones switched around it will go. Could it be the wrong plugs?
I am using denso W27FS-U10 PLUGS.

 

[justintime]

sounds like you need to rebuil

sounds like you need to rebuild the carbs

 

[deerhunt]

"Also on the bottom cylinder o

"Also on the bottom cylinder oil leaks out, could this mean new cylinder rings?"