Posted by steelfronts on June 30, 2008 at 19:05:08 from (24.236.150.155):
In Reply to: 15-30 mag timing posted by Albertagary on June 28, 2008 at 21:05:53:
The easiest way is to remove the number one spark plug put your finger in the hole like a cork and turn the engine slowly till compression leaks past then you know you are coning up on one compression. then take a long thin screwdriver put itt in the hole and move the engine over carefully till th screwdriver stops coning up. thats should be TDC take cap off mag look where rotor is pointed should be at no 1 terminal.To play it safe remove all the spark plugs first. If the mag is way off while its on TDC at this point remove valve cover and acertain that both valves are closed. Then remove the two 1/4 inch fine thread bolts holding the mag drive together and rotate the mag untill the points are just starting to open with the rotor approaching the no one terminal. also the mag should be fully retarded during this adjustment. replace the bolts they will only line up in the correct holes usually either straight horizontal or vertical
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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