I have a Craftsman with a Kohler por 17 hp engine. I've replace the carb.,fuel filter, air filter, spartplug. The mower starts great, runs for 5-10 min. then starts cutting out and then quits. After a few min. it will start and only runs for 1-2 min. and does the same. Help!
I have GT6500 26HP runs for awhile begins miss firing runs on one cylinder, must be running hot ( fuel may be vaporizing ) removed the Hood and it runs fine.
Check your spark first,if you do not have spark your problem is the coils-if you do have spark the problem probaly lies withone of your valves getting stuck after getting hot and soonas it cools down a little it closes and then you can restart it till it gets hot again.Hope this helps
This is not a solution, I have a 18.5 hp, with the same problem, still have not found a solution or a fix. This is what I have done to mine, cleaned air filter, carb, new plug set at .30, changed oil and filter, removed coil ( armature-magneto) cleaned it and re set at proper setting , 30 thousands. checked spark when hot, removed and cleaned gas tank, replaced fuel line and filter, also, renewed muffler and connection gaskets,checked spark plug wire, and all over sparks, o.k. I have run out of ideas, any thing you fine, let me know..
Don.
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It sounds like you have water in your fuel..have you drained the fuel tank and checked for water?
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