Sunbeam Mixmaster 2349. The turntable seems tight until either bowl is attached and then it wobbles.

SOURCE: bowl revolving turntable of sunbeam

http://www.householdappliance.com/turntable_chart.html

SOURCE: Sunbeam Mixmaster model 9 speed control problem

OK, this may not be a solution, but might help you get there.
The speed control is NOT a potentiometer, it is a mechanical governer, and may be out of adjustment, or one of two components in the speed control mechanism has failed. The following is a test/ adjustment procedure.
During this procedure you will not be fiddling with electrical components (No risk of shock) You will be making adjustments with the motor running.
In the centre of the speed finder dial is a chrome cap. This can be *carefully* pried out. Be gentle, it's easy to chip the phenolic resin plastic.
Behind this cap is a nut around a threaded part with a screwdriver slot. Using a spanner and screwdriver to stop the centre part turning, loosen the nut some.
Turn the speed finder dial to 1. Plug the motor in and switch on. Whilst restraining the outer nut with a spanner, turn the central screw. From memory, it needs to be turned clockwise, that is, screwed inwards. The motor should respond by slowing down. Should you get no speed change, try turning the screw the other way some.
If you get a speed change, continue turning the screw in that direction until the motor stops. Now screw the other way until the motor just starts again.
This is the lowest speed and corresponds to 1 on the dial. Check the speed finder dial is still pointing to the 1 position. Lock the adjustment screw by restraining the central part, and turning the nut clockwise with the spanner until tight. Try turning the dial to see that the speed changes smoothly throughout the range. You may need to tweak the adjustment a little to get things just right.
Once you're happy with the speed control refit the chrome button, and you're done.

If you could get no speed change, one of two components under the speed finder dial has indeed failed.
Now you will need to determine just what the machine is worth to you. A motor specialist should be able to diagnose which part has failed. However, new parts will not physically fit and modifications will be needed. This could prove costly. If you know an inveterate tinkerer, you're costs could be substantially lowered.
Best of Luck.

SOURCE: Found a Sunbeam power plus mixmaster in atorage.

I have a 1977 Sunbeam Mixmaster Catalog No. 1-150, service No. 1-15H. Where can I find parts & a manual?

SOURCE: Turntable does not turn. Motor runs. Beaters work.

I have the same one, and the turn table has never turned on it's own. from looking at the bottom of the stand, i think the mixers are supposed to turn the bowl, so i just give it a little turn, and the mixers kinda take care of the rest. BTW, i got 2 sets of beaters with mine and i dont know what the second set is for, do you? contact me at [email protected]

SOURCE: my Sunbeam mixmaster bowl won't turn, how can I

I believe that this particular model is supposed to have the bowl mix separately. I have removed the black piece from the bottom of the larger bowl in order to allow manual spinning. If I am able to figure out how to fix the bowl spinner I will make another post.