I'm back home and I looked at it a moment ago and it was heavy by 2 or 3 oz's on the magnet side.

If the thing was ever dynamically balanced, it had to be while the prototype was mounted on the rest of the engine and the whole assembly spun up to 7,000?

There's no evidence of it having been balanced after being die cast. There was absoluty no tooling to touch it except to touch - up the flashing a little and they didn't do much of that.

The key is even cast into the taper.

But it doesn't vibrate any more than any of my other gas engines after balancing the flywheel to neutral.

I first machined the fins down even with the counter balance, then I decided to check the balance and was amazed at how far off it was. But considering the way the rest of the engine is made..... it figures.

I've had this thing for 17 years and it has always run just fine.

To be heavy on the magnet end doesn't make much sense as far as balancing the engine because this side of the flywheel is almost oposite the counter weight on the crank.

Jim