xxxflhrci.........
OK, I can clear up your confusion if needed.
Let me wait a bit to see if someone else clears it up.
Failing that, I will do so.
pg

 

xxxflhrci.........
I see there are no takers yet to explain the matter of confusion over drain plugs, so let me attempt a try..........

There is a drain plug for the primary compartment.
There is a drain plug for the transmission compartment.
On a machine newer than 1972 there may be a third plug found under the crankcase, close to the seam.

This is not a drain plug. This was put there after Harley completed some kind of machining operation when the engine was built and the factory chose (poor choice too) to use a plug to seal the hole, rather than welding it closed.

This rather large plug should never be removed because the threads are very crumbly and most times when removed the threads become stripped. Then at best it leaks from there on until the cases are split apart and the hole welded up in a major engine overhaul operation.
This hole cannot be 're-threaded' because the flywheels sit right above the plug with about a quarter inch of air space between them and the aluminum case.
So everyone leave this plug in place in the crankcase!

Back to the confusion on the drain plugs for the transmission and primary.............
These both are truly drain plugs. They are made to be removed, the fluid drained, and replaced and refilled with fluid.

The confusion is this:
Since the case is made of aluminum and the plug is made of steel...... if you were to get one crossed threaded most likely it will take out the threads. So sepixlh's comment 'to not remove the plugs' is only in reference to the chance of stripping them.

So you have to use the normal caution, but as it says in your manual.....they are to be removed to change the oil. So what you are doing is correct. Drain the oil by removing the plugs.
pg

 

What would be the correct oil product to use as a flush for the Primary/ Trans?
I read in a thread that Kerosene is not recommended for this part of the motor
Is it ok to use a lighter weight oil 30w/ or 15-40W , and circle the block a few times.
just far enough to get her warm. and then dump the oil . I figure it may take 2 flushes do to the amount of H2O I had.
Thanks
Stepper
recovering Bonehead

 

Stepper,

I'd do just that....I'd just change it a couple of times using cheapo oil....BTW, I ran 30wt non-detergent motor oil in my primary for years with no problems.

 

Thank You All for you time and Wisdom.

Stepper