Small Engines (Lawn Mowers, etc.)/craftsman lawn tractor


tractor will not start tried the plug still nothing sounds like its not got spark to me

Did you check to see if you had spark?

You can do the same procedure with a riding mower engine.  Just turn the key to spin the engine.  Make sure the blades are off, the mower is in neutral, the parking brake set, and you or a helper is sitting on the seat.

Don't worry about the spark color as various elements in the air can cause the color to change.  If you have a solid state ignition, all mowers do since 1981, it you see spark it should be good, 99.9% of the time.  As for spark plug gap, use .030 of an inch, not .035 or greater.


Small Engines (Lawn Mowers, etc.)

All Answers

Answers by Expert:

Ask Experts


Eric A. Jones


Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.


Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

©2017 All rights reserved.