chev0545 231 #1 Posted December 18, 2018 on a 416 h when first choke to start it runs really rough & smokes alot.after that it runs perfect.any ideas? Share this post Link to post Share on other sites
KC9KAS 4,741 #2 Posted December 18, 2018 The choke makes the fuel to air mixture really "rich", thus the rough running and smoke! Most of my machines do the same thing.! 3 Share this post Link to post Share on other sites
953 nut 51,719 #3 Posted December 18, 2018 Probably takes a few seconds for the fuel pump to fill the float bowl and get the mixture right. 4 Share this post Link to post Share on other sites
ronhatch 405 #4 Posted December 19, 2018 Immediately after it starts cut back to about 1/2 choke or just enough to keep it running till it warms up a little. 2 Share this post Link to post Share on other sites
