Cub timing question

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Cub timing question

Postby ShawnAgne » Mon Oct 16, 2017 10:16 am

When running a 184 motor what rpm should be ran when timing at the 16 degree mark?
Shawn Agne

Jim Becker
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Re: Cub timing question

Postby Jim Becker » Mon Oct 16, 2017 2:45 pm

Anything from about 1600 on up.

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Re: Cub timing question

Postby Eugene » Mon Oct 16, 2017 2:47 pm

Plus or minus a tad, 1600 rpms and the advance will max out at 16 degrees. The advance remains at 16 degrees when engine rpms are above 1600.

I wouldn't get excited about the exact point at which the distributor advance reaches 16 degrees.

Magneto advance, 13 degrees, begins when the impulse coupling drops out, somewhere just above 250 rpms. Once the magneto's impulse coupling drops out - that it - 13 degrees at all engine rpms.
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