Setting the stator on an old H70 Tecumseh

baymee(LehighValleyPA)January 20, 2013

I am having a hard time finding a specific thread on the net about setting the stator under the flywheel of an H70

I see where it can move quite a distance in those slots and the marks that the manuals talk about aren't there on this motor and on any other motor that I've looked at. It's just that this time I removed the stator and am not sure how it goes back.

Any tips or help????

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Charging stator or is this a point magneto type ignition that you are unsure of?

    Bookmark   January 20, 2013 at 6:32PM
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This is a point type with the coil under the flywheel. I think I might have found an explanation. It reminds me of the way the pre-68 Triumph motorcycles were timed. Adjust the point gap and then rotate the backing plate. If it was off a little, a slight point gap change would dial it in.

Here are the instructions that I found:

Rotate the crankshaft until the points are open with the follower on the highest part of the lobe. Set the gap to .020.

Rotate the crankshaft to set the piston at .080 BTDC. Approach .080 by turning the flywheel end of the crankshaft clockwise. This is the direction the engine runs and takes any slack out of the assembly. If you overshoot, back it up and approach it again from the clockwise direction.

Disconnect the primary lead and hook your meter across the points. Loosen the stator bolts and rotate to find the point where the the points just break. (It should be about midway in the adjustment range of the stator). Lock it back down.

Hook your primary wire back up. Clean the points with a piece of paper. Button everything back up making sure that you don't pinch and ground out any wires.

This post was edited by baymee on Sun, Jan 20, 13 at 19:10

    Bookmark   January 20, 2013 at 6:35PM
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Bing! You win. You will want to be sure that the mag is tight when setting the point gap. Usually there would be an indent on the casting from the washers.

    Bookmark   January 20, 2013 at 7:35PM
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