bc.gold 3,403 #1 Posted December 25, 2018 One method used to extend the life of a worn piston is to knurl the skirt. 1 Share this post Link to post Share on other sites
peter lena 9,088 #2 Posted December 25, 2018 merry Christmas, have a good day ! I can understand doing that if there is no replacement available, but the effort to tear down a kohler single , and then put in used worn parts, will probably come back at you. pete 1 Share this post Link to post Share on other sites
bc.gold 3,403 #3 Posted December 26, 2018 15 hours ago, peter lena said: merry Christmas, have a good day ! I can understand doing that if there is no replacement available, but the effort to tear down a kohler single , and then put in used worn parts, will probably come back at you. pete Our four stroke engines run in the low rpm's compared to the two stroke piston being knurled. Share this post Link to post Share on other sites
