Author Topic: Ts 400 ignition coil problem  (Read 766 times)

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Offline 660magnum

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Re: Ts 400 ignition coil problem
« on: June 22, 2015, 03:52:26 am »
There's typically a problem with newer design coils being installed at the exact position of the old coil . . .

And the result is the timing is off due to a secondary winding having been added inside the newer coil to provide a timing advance with rpm.

If you could set the timing correctly by rotating the flywheel position relative to the key way . . . The saw should run fine?

This is accomplished with a degree wheel and timing light. The figure for the old fixed advance coils is between 20 & 25 degrees advanced.

The standard figure for advanced timing at 5000 rpm or higher is 28-30 degrees. But 28 degrees at starting will jerk on your fingers.
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