Kohler Engine issue

[perkins]

So I have an older exmark machine with a Kohler engine on it. I have no clue the year or make of either since the moron I bought it from painted over everything.
The problem I am having is this. The mower runs but almost dies out every few seconds and then backfires. It does not die completely after backfiring it boosts back up and runs. I changed the plug, air filter, fuel filter, cleaned the carb new gas tank cap. Motor completely dies when I engage the blades too.
Mower has sat for two years only being started once every couple of months. I went to use it on an account the other day and was fortunate enough to get the entire backyard done without any problems. After that it died out and I used another mower to finish the front yard. I was fortunate enough to get it started so I could get it back on the truck but it is not running any better after all the tune up stuff.
Any ideas would be great! Oh yeah, I ran some seafoam thru it today too and did not help. How much of that am I supposed to use? Can it be dumped right into the gas? I was just pouring it down the air filter assembly like you would starter fluid and letting it run through like the can said. Thanks in advance.

 

[Donald]

Originally Posted By: perkins
So I have an older exmark machine with a Kohler engine on it. I have no clue the year or make of either since the moron I bought it from painted over everything.
The problem I am having is this. The mower runs but almost dies out every few seconds and then backfires. It does not die completely after backfiring it boosts back up and runs. I changed the plug, air filter, fuel filter, cleaned the carb new gas tank cap. Motor completely dies when I engage the blades too.
Mower has sat for two years only being started once every couple of months. I went to use it on an account the other day and was fortunate enough to get the entire backyard done without any problems. After that it died out and I used another mower to finish the front yard. I was fortunate enough to get it started so I could get it back on the truck but it is not running any better after all the tune up stuff.
Any ideas would be great! Oh yeah, I ran some seafoam thru it today too and did not help. How much of that am I supposed to use? Can it be dumped right into the gas? I was just pouring it down the air filter assembly like you would starter fluid and letting it run through like the can said. Thanks in advance.


Forget the Seaform. Run a tankful of properly mixed blue Marine StaBil. The cleaner needs to go through the carb. Might take off the fuel bowl and have a look. Order a carb rebuild kit. Even if you do not do the rebuild, a few of the parts might come in handy. How did you clean the carb?

 

[perkins]

I used the rebuild kit. Took everything off and let it sit in the carb clean tub overnight. Sprayed everything out with and air hose and put back together with the new parts.