I do like using up all of that tire, but I rode my 2017 the same way and never a bit of transfer.

 

I agree. Almost 24,000 miles on my '17 and no sumping or transfer.

My first '19 didn't transfer any in the first 7,400 miles but it sumped and sumped again after repair! My second '19 Limited hasn't sumped but would suck the trans dipstick dry in a tank of fuel. Don't really think leaning has anything to do with it. It's just a game of chance.

Have about 1,700 miles now with the inner primary vent kit installed. Level hasn't moved. Just waiting for this one to sump! ..... if this one sumps Harley can kiss my a$$

 

Question , has anyone had one migrate out enough oil to damage the transmission?
I think My 18 FLHTCU is migrating. Just checked the trans and no oil on the stick. I didn't check it when I got home to verify they filled it to the correct level so that's on me, 1k service was done at the dealer, 1600 on it now.

 

YES, Mine only had 4oz left and was like you put the brakes on each time you let of throttle and dealers said ride it in.

 

Sooo..... who makes/sells the fat clutch rod?

 

Macomb county choppers

 

Your point is fundamentally flawed when you claim Trans fluid transfer has never occurred prior to M8.......it has occurred and in 103”s and may well have on others. There has (for as long as I can recall) been a seal between the trans and primary which has on occasion leaked.

Just another point to clarify - the Hydraulic clutch preceded the M8s also.

 

Sorry to hear, there are more bikes out there that are migrating than we will ever know.There is a thread on Eagle riders that claims that 2 trikes he rides with both lost transmissions due to migration.
Guys keep saying that trans level doesn't matter, as long as oil is being slung around. That just doesn't jive, why would MOCO put that X on the dip stick if it was not important.
In fact if you think about it MOCO allows enough migration that they contradict themselves.
Getting the vent from MOCO tomorrow, mechanic told me this weekend that there is a 100% success rate with this. It's funny that a primary vent was first suggested when this problem began to really take off in late 16-early17.

 

I'm glad that it's a viable fix. I wonder how long before dirt and other goodies block up the vent since it is drawing a vacuum. It looks like its above the belt, that belt moves in the direction of the vent.

 

I pulled the dipstick out, stuck a rod down to the bottom of the sump to get an idea of how much was actuallyin it. Sitting on the jiffy stand it measured just 1/4" below the tip of the dipstick. Still about an inch in the bottom of the case. Called dealership today, bringing it in this Friday so they can have a look.