I have a Sears Craftsman Portable Generator Set 7.8hp 4200 Watt.

johnnytugs1(Jackson, N.J.)May 7, 2012

I have a Sears Craftsman Portable Generator Set 7.8hp 4200 Watt.

Model # on engine recoil cover -- Craftsman 580.329140

Serial # 7434819

It is used i'm trying to get it running and i'm not getting much of a spark. It seems to be very weak. I made the mistake of taking it apart before i changed the spark plug. Let me back up for a moment. I work on a boat and i come home every other 2 weeks. I also have a really horrible memory. I performed some tests last time i was home and found the compression good, a weak spark and she wouldn't start. I picked up a new spark plug unfortunately i forgot to put it in before i pulled the flywheel off. I thought it had points but it has an electronic ignition. I previously sanded down the coil fins and the edge of the flywheel. still no spark. Is there a way to check/test to see if the coil is good? Any other thoughts?



Thank you for reporting this comment. Undo

Not real familiar with these, but it's a Generac made unit according to the OM.
Engine is a Generac EHC 04276.

You might look for a kill wire to the coil and check that for any shorts to ground.
Use a business card to set the air gap between the coil & flywheel.

If that doesn't work, you probably need a new coil.

Hopefully, someone that actually works on these can chime in.

    Bookmark   May 7, 2012 at 12:34PM
Sign Up to comment
More Discussions
Dewalt 3800 pressure washer, open hole between pump and engine.
Hi, I just bought a dewalt 3800 pressure washer gx...
Stihl vs. Husqvarna Chainsaw purchase
I am lucky enough to have my wife ask me to pick out...
Kohler K181 valve clearance
The engine would run perfect for maybe 30-45 minutes,...
Electric shredder motor will switch on but won't spin the blades
Hello, I have an electric garden shredder that will...
Lindsay Durdle
Craftsman Snow Blower - Drive problem
During our big storm last week i noticed I started...
© 2015 Houzz Inc. Houzz® The new way to design your home™