Small Engines (Lawn Mowers, etc.): 7 hp Tecumseh, mutual induction, high tension


Question
The motor I am working on will not get spark. The points are good as checked with a ohm meter. checked the ignition coil with a 6v battery. Ground of battery to frame and positive to the points stud. just briefly touch the stud with the positive to energize the coil, if coil is good spark will go to the high tension lead. Question is: Do I need to have the condenser wire and the ignition wire hooked up to the points stud? Do I test the coil with the coil wire by itself. Any input would be greatly appreciated

Answer
hi pete

if you have applied  d/c voltage to the coil you have just damaged it ? coils are not ment to take d/c  voltage  it burns the primary windings and insulation


ignition units are typically a/c volts from movement of a magnet past a stationery coil  which induces a voltage in the primary winding and builds up and cuts across the secondary winding in the coil ( at which time the points remain closed )  then at the correct time the points open, field collapses and mutual induction takes place and a high tension spark is delivered to plug

sounds like you need a new coil and condenser and point set  

operation is the same briggs

just as a matter of interest let me know  model & type numbers of engine and wether vertical or horizontal


cheers paul