He'll answer that for sure....if it's a "65cc" I believe those are the bearing engines, if it's a "70cc" it's a bushed.

Now, I do know from experience with engines that a bushing is not always a bad thing, and sometimes it's a good thing.

In model planes, a bushing is lighter, cheaper, little or no maintenance needed.

Autos and trucks use a "bushed" bottom end for the most part because the surface area is bigger and can take more "abuse".

Both have advantages and disadvantages.

Anyone else care to add to this?

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