QuestionI own a 4 year old Craftsman 6.75 horsepower rear discharge rotary lawn mower. Model # 917-388610. I took it out this afternoon for the first time this Spring. Cleaned, changed oil, plug, air filter, etc.
Mowed for about 15 minutes and stopped. Several hours later, I noticed a very strong gas smell in my garage. All the gasoline appeared to of leaked out of the engine through the carb and out the air filter.
What is wrong?
AnswerHi Jeff,
I suspect a piece or dirt stuck is stuck in the float's needle valve. You can try removing just the float bowl, the float and the needle, then blowing it out. You might need to disassemble the entire carb and clean each and every small hole with a small wire.
Let me know how you make out.
Michael
PS - See my general proceedure for storage:
Springtime equipment starting problems are very common.
In the fall we all just want to park the mower and forget it. I do that for a week or so but within a month, usually after the leaves are up I do the storage prep.
I first change the oil. Old oil has acids and other contaminates, which shouldn't sit in an engine for long periods. Next, I drain the fuel and put in in the car where it will be used up soon. Then, fill up the tank with new fuel, fresh from the pump. (Fuel starts to go bad in one month. It can either gum up in carb or make deposits, clogging the small openings.) I add fuel stabilizer. This is the critical part. Stabilizer, available at equipment or auto supply shops, will keep fuel stable for up to one year. (I like the brand "Stabil".) I then run the engine for about 5 minutes to run the fuel through the carb and to coat the engine's internal parts with the fresh oil. Finally, after the engine cools, I remove the spark plug and squirt about a tablespoon or two of engine oil into the cylinder. After replacing and tightening the spark plug but not connecting the wire, I slowly crank the engine over several times to coat the cylinder walls with oil. This step prevents rust and helps to keep the rings from sticking in the piston grooves. That's it! Ready for winter hibernation! In the spring, it should fire right up. After the cylinder oil burns off or after the first use, I then change the spark plug. I also try to use up all the fuel before adding more. This proceedure, applies to any engine being stored off season. At storage time it's also good to do other maintenance as required, like: belts, bearing/bushing lube, blade sharpening, air/oil filters, general inspection, etc. Spare parts on hand make it a snap.
Best,
Michael
