Steve Parry 0 #1 Posted November 15, 2009 I have a 76 C-160. I have adjusted the carb so it runs/idles well, but I can't get it to stop backfiring when I shut it off. Any suggestions? Steve Share this post Link to post Share on other sites
TT-(Moderator) 1,127 #2 Posted November 15, 2009 I'm guessing that it still has the original Nelson muffler? Share this post Link to post Share on other sites
Kelly 1,028 #3 Posted November 16, 2009 have you tried letting it idle for 30 sec. or more before you shut it off? some times that helps, but like TT said the big can mufflers do that Share this post Link to post Share on other sites
