i have a 14.5 hp ohv briggs and it keeps surging at high rpm and wont run at low i now it could be running lean because if i push in the choke a little it runs better. but it is now shooting sparks out of the exhaust every once in a while. what could cause the sparks.
Doc Sprocket Site VIP
2500+ Posts
2500+ Posts!
2018 Build-Off Entrant
2018 Build-Off Entrant
2021 Winner of Winners
2021 Winner of Winners
1st Place Build-Off 2016
1st Place Build-Off Winner 2016
Age : 51 Join date : 2013-04-21 Points : 7270 Posts : 2914 Location : Ontario Canada
Start with a good carb cleaning. Running better with the choke on is always a sign of a lean mixture. The sparks could be chunks of carbon blowing out, you might have a buildup in the combustion chamber.
sparks out the exhaust... oh boy... does the muffler glow at all? it could just be carbon, but ive never seen it happen.. its possible the exhaust valve isnt closing all the way. check out " Donyboy73 " on youtube. he has a video on it