I think the Wisconsins are the easiest and most simple engine to work on. Next would be Briggs.
I have really never had to tear down an onan or tecumseh completely down so I cant really say anything on those

 

I am going to get to find out what it is like to tear down a Tecumseh this spring or summer. My 12 is due for a rebuild. Motor wise the Wisconsin on dad's bolens was pretty easy to work on but like I said the Zenith carb was a pain. If the previous owner wouldn't have booger-ed it up it probably wouldn't have been that bad.

 

Wisconsin is an easy engine to work on. TEC HH engines are easy enough to work on too. Onan engines have a lot of parts, but aren't too bad, but much more involved than any single. Onan's are easier to work on than any make twin that the block splits down the middle. Onan's main block is a single part.

 

You mean they make other engines besides Kohler, wow, didn't know, hehehe

 

Maybe it's because I've worked on so many that it's second nature. I think they're pretty simple compared to even the Kohlers and Tecumsehs (not that they're rocket science either). But, simplicity comes with a lack of quality in most cases also. Just my 2 cents.

 

i like all the engines, i hate getting the pulleys off and "c" clips. drive me crazy

 

i have never torn an engine down before except for car and truck engines. but i should be getting my share of practice as soon as i get a shed bought or built.

 

Thinking about it now, Honda is about the only big name small engine I haven't gotten into before. Out of any of the ones I have torn apart, my favorites are the small cast iron singles from Briggs. The 5 and 6 S engines in particular for their simplicity and ease of tuning.

 

onan engines are real easy to work on.I think they are easier than the briggs.

 

I'd say older briggs and the few onans ive worked on take the vote. All my tecumsehs seem to be high maintance after they sit for a while.

 

The only small engines I've rebuilt are Kohler K series. I thought they were well made and simple to work on.