Technical Articles

The Kohler K Series Small Engines have earned a legendary status among collectors and users.They were robust, powerful and reliable. Millions are still in service today and run just like they did when they were made dating back to the 1950's.Here are 5 reasons from a technical standpoint on why you should rebuild them instead of buying a new engine.Cast Iron Engine Block:They are heavy. In most applications today their power to weight ratio is not considered impressive. But when they power 4 w …

Did you just replace your burned out ignition coil to have your new one burn out too? Here is why!The leading cause of premature failure of an ignition coil is due to a worn or bad spark plug ignition cable.A bad spark plug ignition cable will have a much higher than normal resistance. This high resistance causes a very high amount of voltage to be generated from your ignition coil's secondary winding. This excessive voltage creates a high amount of heat which consequently melts the …

Here is a basic wiring diagram that applies to all Vintage and Antique Lawn and Garden Tractors using a Stator Charging System and a Battery Ignition System. We did our best to keep this as simple and as easy to understand as possible. This applies to all old Cub Cadet, Ford, Jacobsen, John Deere, Wheel Horse, Case, and Simplicity Garden Tractors. 

Engine Science: How a Battery Ignition System WorksAs Published in July/August Issue of Lawn and Garden Tractor MagazineBy Norman Ng, iSaveTractors.comI meet a lot of people who are completely comfortable and confident disassembling an entire engine. However some of these same people are intimidated by electrical issues in their tractor. To many tractor enthusiasts, the idea of electricity is mysterious and viewed as if it were magic. A common problem is an engine losing spark. I see man …

Ignition coils are very simple devices yet widely misunderstood by the small engine and tractor community. In an effort to take some of the mystery out of we decided to cut one of our ignition coils to show you what it's made of.The below picture is of the primary and secondary windings in our iSaveTractors ignition coil. The part on the left is the primary winding. This winding is a thick insulated copper wire. 4 amps of 12 volt current runs through this wire creating an electromagnetic field …