Small Engines (Lawn Mowers, etc.): Sears blower starting problem, blower vacuum, bad shape

Question
Hi John,
I have a Sears mulching blower vacuum that won't start. Only 2 years old and start problem began about a year ago and has quickly worsened.  Cleaned air filter and spark arrestor although neither were in bad shape.  Spark plug looked okay - reset gap.  Tried to determine if it is a spark problem by visually verifying spark while pulling starting cord with plug grounded to cylinder assy.  Saw nothing.  SHouldn't I be able to see a spark? Don't want to replace module assy until i verify thats the problem.  What should the gap be between crankcase and flywheel. I just estimated by slipping business card between, tighten then pull card.  How important is this clearance? Thanks in advance for any input.

Answer
Hello Hal:

The Business Card Gap is Good. The Gap is .015in -.020in. Remove the Spark Plug and Wrap the Threaded Section of the Plug with Wire, then Attach the Other End of the Wire to the Engine Block. Now, Remove the Coil Shut Off Wire at the Shut Off Switch. Check for Fire. If No Fire, then Remove the Cut Off Wire from the Coil (removal of the blower housing required) and Check for Fire.  Turning the Engine By Hand (giving a Quick Twist with the Wrist) is Enough to Make the Coil Fire the Plug. If Still No Fire, then the Coil/Ign Module is Bad. 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. Have a Happy Holiday Season and May the All Mighty Bless You and Yours. Be Safe and Happy. 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