Small Engines (Lawn Mowers, etc.): kohler engine spark, snapper mower, hp kohler

Question
Got a snapper mower with 15 hp kohler cv15s. We can start when it is cold then when it warms up and you shut it off it has no spark to plug. We will let it set for a few hours then it has spark again. Can the coil module be the problem when it gets hot ?

Answer
Hello John:

On this Model JD, to Check the Coil, Remove the Blower Housing (metal Engine Cover) and Disconnect the Cut Off Wire from the Coil. Remove the Spark Plug/s and Wrap a Wire Around the Threaded Area of the Plug/s. Attach the Other End of the Wire to the Engine Block. Turn the Engine Over and Watch for Fire at the Plug/s. If you have Fire, then a Safety Switch is Bad of there is a Ground in the Wiring Harness. If No Fire at the Plugs, then the Ign Coil (on Some Models the Igniter) is Bad and Requires Replacing. If this Model JD has an Igniter and a Coil, then they have to be Removed and Taken to a JD Dealer or a Small Engine Service Center that has the Test Equipment  to Check these Components. You can View a Breakdown/IPL of the Engine and Mower at this Site Addy, http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.servlets.H... and Enter the Model Numbers (LX172) and Click Find. Then Select your Model from the Search Results Area. Then Select the Sectional File. Then Select the Section of the Mower you Wish to View Online. To Check the Safety Switches; The Following is an Instruction File for the Safety Switch System. Any Input is Appreciated. The Color Code of the Wires May be Different than those I Use as a Reference in the Instruction File. **PLEASE REMEMBER THAT THE INSTRUCTIONS FOR CHECKING THE SAFETY SWITCHES IS JUST THAT!!! FOR CHECKING ONLY. I NEVER Suggest a Mower be Operated with a Safety Device or Switch Disconnected or Bypassed. Now. On Some Model Mowers you can Simply Unplug the Safety Switch from the Harness. On Other Models you have to Place a Jumper Wire Between the Harness Terminals (on the 4 Post Switch (Clutch/Brake) Jumper from Same Color Wire white to White First and then Check for Fire, Now Include the Black to Black Wires if No Fire. Check the Clutch/Brake and the Blade/PTO Safety Switches First. Check the Seat Safety Last. Usually the Seat Safety is Not in the System for Starting the Engine. Just to Ensure Someone is in the Seat when Engaging the Transaxle and/or Blades. Use a Paper Clip or a Short Wire to Make a Jumper.**  If you Hit a Snag or this Does Not Correct the Problem,  I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Thanks.

Respectfully

John