Two splines to lube on a 1994 K1100 LT paralever

[bizzaro]

Howdy,
So I have done the infamous clutch spline lube, (input shaft I guess, splines that go into the clutch from the tranny) on my 1994 K1100LT para-lever. From the back of the tranny is a u joint attached to the drive shaft that goes the the final drive. There are splines on the end of the drive shaft that I intend to lube with guard dog as well.  So my question is, are these the only two splines that need to be lubed, or is there another somewhere in the final drive area that should be lubed? I have looked and searched the forum, and I am sure it is here somewhere. I am hoping someone will help me expedite the process and just tell me?  I would like to wrap this up today and get back on the road. At any rate the tough one is done.

[Scud]

From front to back of bike:

1) Engine output to transmission input
2) Transmission output to driveshaft
3) Driveshaft to final drive input

[Scott_]

Well, on the Paralever final drive setup's, the transmission output splines and the final drive input splines can use lube to keep them clean but it isn't required as the u-joint yokes are kept stationary with circlips so the yoke doesn't slide on the shaft anyway.
The important shaft splines to keep lubed are the intermediate splines in the middle of the drive shaft, this is where you have spline movement when the final drive pivots up/down......

[Scud]

Oops - I missed the part about this being a paralever.

See "Can you read?" thread. Clearly, I can't.

[Inge K.]

Take care when mounting the two driveshaft halves back together.
The two u-joints must work in phase, or you will get vibrations.

Also be shure that the clip at the rearmost u-joint snaps in to the grove,
or the splines at the FD and rear joint will be destroyed after a rather short time.

[bizzaro]

Scott,
Thanks Scott. There doesn't seem to be a lot of para-lever info on line. On youtube or here really. They must have made a shit ton of K75"s as there is a ton of info everywhere, and everybody here seems to own one!  Are they all mono-lever bikes?  I digress. 

The splines coming out of the tranny are attached to a a u-joint and it is on hard. I do not see a circlip anywhere. It does not move at all. Well except spin of course.  It seems to be friction fitted. This one clearly doesn't move so doesn't need lube. But the other end of the drive shaft that goes into the final drive obviously moves as it slid off on disassembly.  I will lube that end of the drive shaft on reassembly. So is there another spline inside the final drive assembly, or can I just lube the end of the drive shaft and put it back together? And not worry about splines for another 20K?
Thanks Again,
Bizz

[bizzaro]

Inge,
So you are saying the u joints need to be off by 90 degrees or in line?  IE: the knuckles on the u joint need to be offset, and not in line?
Thanks,
Bizz

[Scott_]

A little history.....
The 75's have a mono-lever setup, ie the drive-line connection to the transmission has only 1 flex joint(ie 1 u-joint). This flex joint is at the transmission end.
The drive shaft is 1 piece with the U-joint mounting at the transmission output shaft. The u-joint is held in place with a retaining clip.(circlip)
The other end of the shaft that connects to the final drive is the "floating" end of the shaft. This end must be lubed as it does slide in/out with up/down movement of the final drive.

The 1100's have a para-lever setup, the drive-line from the transmission to the final drive has 2 flex joints. 1 at the transmission and 1 at the final drive. There will be u-joints at each of these places. Like the mono-lever setup, the u-joint yokes are held in place with circular retaining clips(circlips). These retaining clips should be internal to the joint yoke and seat in a cutout machined in the male splines.
The drive shaft on a para-lever is 2 pieces with a splined joint in the middle. This middle joint is where you have lateral shaft movement when the driveline moves up/down. This is the critical joint to keep lubed up. You will also notice when you have it in your hands that the female receiving end of the spline joint(front half of the shaft assy) is mounted in rubber.... for rotational flex.

re the yoke alignment, you want them in-line(in phase). Just like the drive shaft on your truck/car.
What you want to do is to mark the middle joint where you want the alignment as you cannot see both yokes when trying to assemble the whole thing.

[bizzaro]

Scott,
Thanks once again. I did find Frankenducks diagram of how the u-joints should align.  I have to get back at it.  I am in borrowed space on borrowed time.
Bizz