<font color="blue"> ( I hope I don't open a can of worms on myself here.
<font color="red"> Open away! Worms can be fun!! </font>
I have the Robin 22 hp on my 422 with over 160 hours
<font color="red"> I was primarily referring to the 25hp engines used in the PT-425.
160 hours is not long service for an engine. (I have a Kohler in my 1976 Power King that, with just gas, oil, and one head gasket, runs as sweet as it did 30 years ago!) Even though the 25hp Kohler engines in the PT-425 have been in service a minimum of 1-1/2 years longer than any of the 25hp Robins, there have been far less problems reported in this forum. </font>
I'm not saying the Kohlers are any worse/better...just saying I'm not sure the Robin engine is as bad as you have stated
<font color="red"> I did not state that the Robins are bad. I just reported that they have received many more negative comments on this forum. All evidence on TBN, by its very nature, is anecdotal.
If I had a choice of engines, I would generally rank them as Honda first, then Kohler, Kawasaki, Briggs, and Robin, but that's just my impressions of the various engines. Please, pass the salt!!
/forums/images/graemlins/confused.gif </font>