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Discussion Starter #1
on my ultrasonic it has the 440 rotax im still confused about getting teh ritgh timeing i read to get the mag psiton to tdc and then put on the roatary valve with teh mag side completely open with the valve jsut at teh bottom edge of the other port. will that work? or will getting teh mag side piston tdc and taking the valve and marking it up to teh little notch on the top of teh roatary valve case with teh mag side port completely open i need soon help the snow is a blowing in haha
 
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