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Just got done rebuilding the motor on the tr25w. I know how to set the point gaps, but could someone tell me how to set the timing?
 

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Find top dead centre on the compression stroke (approximately).
Look in the primary case for a timing mark on the rotor.
Rotate the engine backward slightly until the rotor mark lines up with the pointer.

This is where you want the points to just open,when the advance unit is at full advance.
If you twist the points cam fully anti-clockwise against the springs until it hits the stop,it will be in the fully advanced position.
Move the points plate until you can get the points to just barely open,when you twist the cam right to the stop.

If the ignition is turned on,and you are listening to a radio,you will hear a loud crackle exactly when the points just open.For best results,put the radio between stations and turn it up loud.
 
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