Greetings!

2005 FLHTCUI the most forward right plug - it is 1/4 hex or allen plug that is accessed directly from the bottom of the bike. What is this? I attempted some searches but could not find it.

 

If it is on the right side it is the tranny drain.

Bwana

 

if its in the bottom of the motor DON'T TOUCH IT. IT'S the sump drain. used mostly for troubleshooting. and if you over tighten your in for a bad day

 

it's on the right but it is in the very front, not quite below the front jug so I don't think it is trans. It's almost flush with the bottom of the case and can only be removed with a 1/4 hex.

 

Like this?

 

I don't have access to the link. You insert the hex wrench straight up, not toward the back of the bike.

 

It's #1

 

It's #1

 

That plug goes into the cam chest. I've never come across any procedure that required that to be removed.

 

When a Harley is shut down, the oil level in the cam chest should never be much above the two hanging down bosses on the oil pump. One of the bosses has a passage directly behind it going into the flywheel cavity (crankcase area). Oil level in there is about inch and a 1/2 or so, and the crank spins in it. (not total dry sump but still correctly named) In the cam galley there is about 6 ounces and probably double that in crankcase. About 1/2 qt total. That galley plug is tapered pipe and requires liquid sealer and you need to be extremely carefully about not tighten it too tight or it will crack the block. Someone just did it on here not too long ago trying to get that last few ounces of dirty oil out. Even if you drain it, you are still leaving the 12 ounces around the flywheel. Harly keeps this secret like Coke keeps their formula secret. You would be money ahead to leave that plug alone. My picture is from a TCb. Not sure why squeeze's crankcase cavity is different, but it does have TC oil injectors? Remember, that lower part of the transmission is actually a separate oil tank for the engine and is not part of the transmission or engine on the Dynas and Tour cruisers and it also can not just run into the engine. Oil is pulled from and returned to it by the twin rotor oil pump with the return side bigger then the pressure side. Softails have their tank below the seat above the transmission.