I am putting the B&S OHV 130cc 3.5hp (which is in effect a Mitsubishi engine) on my 20" SB 45 I will let you know how I go with it. It should be an improvement from the Kawasaki FA130 it had before.
Here is the post on where I discuss the B&S
https://www.outdoorking-forum.com.au/forum/u...mp;Main=11046&Number=70435#Post70435-greg
Last edited by GregR; 14/12/15 08:20 PM.