[Shop-talk] kohler engine surging

[john niolon]

need a lawn tractor engine guru...

cub cadet tractor  20 hp twin cyl Kohler engine horz shaft.  Engine has 
started surging  and has a hard time idling... surging happens sometimes 
when at full throttle and blades engaged...

need some guidance on what to look for...  air cleaner is clean ... I clean 
it after each use... fresh gas in tank... haven't changed fuel filter yet 
but can...  got to be something dirty in the carb is my thinking but don't 
want to go spraying carb cleaner everywhere without knowing...

help ???

thanks John



Everyone seems normal until you get to know them.