Whatever you decide to use, good on you for doing it yourself, theres too many riders out there that pay for somebody else to do there work for them. Props

 

That's what i've been using since day 1 (actually day 34 since i ran 500 miles with the factory fluid).

 

So you are running Mobile One 10/40 Synthetic in your primary? Can you tell me who reccomended that weight for the primary oil?

 

How about the clutch adjustment while your in there?

 

Bingo! This necessitates removing the derby cover (not just the inspection plate). Also, the bike must be level (i.e., not on the side stand). If you dump in the full quart on a refill, you will invariably overfill (unless you have dropped the primary cover). You can't get all the old fluid out through the drain hole. I typically use 26-28oz on a refill. Overfilling can cause slippage and/or difficulty finding neutral.

As for the "clunk," that's from the transmission, not the primary.

 

I agree with the above explanation for the origin of the clunk when starting up and dropping in to 1st. I start mine in neutral and then pull in the clutch for about 30-45 seconds and when I get ready to drive off I slip it in 1st and the clunk is barely noticeable or none at all. What happens is the clutch plates squeeze out all the oil between the steel and fiber plates while the bike is sitting and when you put it in 1st the plates all sort of stick together and it puts tension throughout the gear box "klunk". By pulling the clutch in,,, the spring tension is released on all the plates and it makes room for oil to distribute itself in and around all the plates,,allowing them to slip and eliminating the tension going down the transmission.

 

or just pump the lever a couple off times with the motor going before selecting gear

 

I use amsoil 20-50 engine oil, 70-140 amsoil trans, and amsoil ATF in the primary
But I have a primo clutch so it is required to use AT and I have a Baker OD6 trans
On my CVO I use amsoil 20-50 engine, severlube in trans 70-90 or 70-140, and and dyno in the primary same as the cvo in the wide glide.
I did this to my 07 ultra with 60,000 miles with the original clutch with no slipping. Trans shifted like new at 60,000 miles

 

Mobile 1 20W50 V twin in the motor, Spectro gear lube in the tranny, and Spectro primary oil in the primary.

The shop manual says put 32 oz in the primary, and the only way you're going to do that is stand the bike up. You can't get 32 oz in there on the sidestand.