Model #6500 Craftsman handbox

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Question and Answers

Q:

My DSG 6500 garden tractor won't start

A:

Without a model number of the tractor, we can't look at a wiring schematic to determine what might be causing the problem of no spark.

Most Craftsman tractors have a safety circuit that will kill the spark to the engine if the deck is engaged or the clutch is let out with no one sitting in the seat.

This safety circuit sometimes goes through the switch in the PTO switch if you have an electric clutch. The circuit goes through a micro-switch on the deck engagement bracket if the clutch is manual.

The safety circuit goes through the clutch/brake switch mounted under the frame and actuated by the brake/clutch rod when you press the pedal in or let it out.

The safety circuit also goes through the seat switch and the seat switch connector. If the connector is disconnected from the seat switch the shunt kills the spark from the ignition module.

If you have more questions send another email and include the model number of the tractor. DSG6500 is a style number, the model number is under the seat.

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Jimmy K -
Sears Technician
April 22, 2010
Q:

What is the difference between the 2008 DGS 6500 tractor models 28846 and 28860?

A:

They are essentially the same tractor but the 28846 is a California specific model which means that it has some additional hardware and design considerations needed for that state. Most of those differences are made in order to meet the stricter emissions standards for California. Such as added evap systems on the fuel tank and some added design considerations in the engine.

None of those additions or alterations have a significant impact on the performance of the tractor, so from an operators perspective, the two will be virtually identical.

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Lyle W -
Sears Technician
May 22, 2009
Q:

We put a fuel filter on a Craftsman 26 hp V-twin DGS 6500 since it wouldn't start. It still won't. What could it be?

A:

You can look at a parts diagram for your product at [www.searspartsdirect.com]. This will help in locating the parts on the product. You can get an owner’s manual at [http://www.managemylife.com/]. Open the page and enter the model number of the product.

You need to decide if the problem is no fuel or no spark.

Remove the spark plug and hold your finger or thumb on the hole the spark plug screws into. Get someone to pull the starter rope or engage the starter and the compression should push your finger off the spark plug hole. This will tell you the valves are operating inside the engine and you have compression.

Pour a thimble full of fuel into the hole the spark plug came out of. Quickly install the spark plug and pull the starter rope or engage the starter. The engine should try to start. This would tell you there is a spark and the engine will run if you get fuel. If the engine doesn't try to start, pour another thimble full of fuel into the cylinder. Look at the anode of the spark plug and see if it is wet. Try to start the engine again. If it still doesn't try to start, remove the spark plug and connect the ignition wire to the spark plug. Hold the bottom of the spark plug to a clean area on the engine block. Use insulated pliers or gloves to hold the spark plug to prevent shock. Get someone to pull the starter rope or engage the starter and see if you get a blue spark from the anode of the spark plug to the base of the plug. If there is no spark the ignition module on the engine is bad.

If you have spark the problem is in the fuel supply. Did you run the engine after draining the fuel to burn the fuel out of the carburetor? If not the carburetor will be clogged with the remnants of the old fuel and need to be replaced. If you ran the fuel out of the carburetor, the diaphragm or float is probably just dry and not flexing. You should take the carburetor apart and clean and soak the diaphragm with fuel or clean the float and needle and seat..

The fuel line might be cracked and letting air into it stopping the fuel from feeding the carburetor.

If you need more advice after trying these things, send another email and include the details of your tests and we will try to help.

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Jimmy K -
Sears Technician
August 14, 2009

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