Carburetor problem? 25 hp Kawasaki

**HBA** · 05-17-2012, 10:06 PM

I have a 2001 25 hp Kawasaki engine on a bobcat mower. It runs great when the blades are not engauged but when i engauge the blades it runs great for 30 minutes then it dies. It restarts and I run it for a few second then dies. It just keeps dieing, it seems to me like it's not getting fuel...I check the tank cap it's open, the fuel filter is new, I check the fuel pump and it's has a good stream . The only thing I can figure its the carburetor. Ive even tried seafoam and nothing it still does it. Any suggestion ?

**LawnWorld**

**Edwards saw service** · 05-18-2012, 08:18 AM

We have this problem come into the shop with older bob cats. How many hours are on the unit? It may be time for the heads to be replaced or the valves to be lapped.

Edwards Saw Service in Glen Mills PA

**HBA** · 05-18-2012, 09:07 AM

The mower has over 2000 hours but the engine has less than 200 hour.

**Lawnranger** · 05-18-2012, 01:50 PM

I'm sure you already know this but an engine needs the right amount of air, the right amount of fuel, compression and spark at the right time to operate properly. If one of the above factors are missing or in the wrong proportion the engine will not run or may run poorly. When the symptom is present find out which one(s) is/are missing from the equation.

**DaveTN** · 05-18-2012, 05:46 PM

It doesn't take much to get an engine to run erratically. One would think that less than 30 minutes would be enough to cause an intake valve with insufficient gap to heat up enough to come off its seat. Wouldn't hurt to go through the carburetor and give a good cleaning with carburetor cleaner and re-assemble. Enrichen the mixture screw some couldn't hurt. Too much and it would blow black smoke~~~ I'd take the valve cover off and look at the gaps and see what they are set at.

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