Tankman 3,515 #1 Posted September 25, 2012 414-8 Kohler runs fine at fast idle, or when working; i.e.: mowing. Starts with ease, full choke at half throttle. Then choke off immediately. The 14 HP Kohler would mow all day without a hiccup. When stopped, mower off, the Kohler doesn't like to idle for long. Been adjusting the idle mix and main jet daily hunting for a solution. Hiccups, a few times with short periods 'tween hiccups. Then, she'll stall. My 12 HP Kohler's could idle all day without a burp. Any clue(S)? Share this post Link to post Share on other sites
MarkPalmer 80 #2 Posted September 25, 2012 Most likely the idle needle and jet on the carb need to be cleaned then the idle mixture and speed re-adjusted. -Mark- Share this post Link to post Share on other sites
dsholler 54 #3 Posted September 25, 2012 If you figure it out, let me know. Mine does the exact same thing (same tractor and engine). I can get it to idle down to about 1/3 throttle, but if you go any lower it will die out. I suspect mark is correct on this one. Share this post Link to post Share on other sites
Callen 64 #4 Posted September 25, 2012 Is the throttle shaft loose/worn? Share this post Link to post Share on other sites
312horse 0 #5 Posted September 28, 2012 I just picked up nice 314-8 today with the 14 horse kohler magnum , it runs great for a few minutes then it bogs right down and won,t hardly pull itself , if you idle it down it will set there and idle , but if you open the throttle it cuts out and wants to die . it almost acts like something heats up and causes it to do this ? coil maybe ? if so they must have buryed it , i don,t see it . Share this post Link to post Share on other sites
