STX 46 problem

bigboreG · Aug 23, 2014

My STX 46 with Kohler engine runs fine for the first 20 minutes or so. After that it will tend to start stumbling and I will have to use the choke to keep it from dying. After a choke it will come out of it for a few minutes, only to do it again a bit later. Eventually it will die and wont start. I walk away and return about a half hour later, fire it up and start mowing again. Runs fine for another 20 minutes only to repeat the problem all over again. I have tried to chase this down but have had no luck. Thanks in advance for any ideas.

nlastovi · Aug 23, 2014

(quoted from post at 17:32:09 08/23/14) tend to start stumbling and I will have to use the choke to keep it from dying.

fuel problem springs to mind. Thus I'd be tempted to start with all of: replace fuel filter(s). clean/replace air filter(s). ensure gas cap is venting. ensure pump(s) are working. clean carb.

deeretails · Aug 23, 2014

Check the vent in the fuel cap, make sure is not plugged.

bigboreG · Aug 24, 2014

Last night I checked the fuel cap, vent is open . I had just serviced it completely a few weeks ago, mower had been sitting in my shed for two years. I pulled the fuel line from the carb, had a good stream of gas going. Way down inside the tank there appears to be a few dead bugs of some sort. How they got in there I do not know. Is it possible that one of those could be the plugging the hole at times? I drained the tank and got the bugs out. We will see.

Doug Wilkins · Aug 25, 2014

My STX was doing this and I had to replace some sort of resistor. Let me ponder for a while and hopefully I can remember what it was. It was doing the same thing yours is.

STX 46 problem

bigboreG

Member

nlastovi

Member

deeretails

Member

bigboreG

Member

Doug Wilkins

Member

Similar threads