"greasy" feeling rear?

Today after a 100 mile ride, toward the end as I was coming home, the rear felt greasy or the shocks had a bit of bounce in them as I came around a corner going 75 mph. I haven't had that feeling on this bike before so I tightened right up and slowed down.

I couldn't get it to do it again until a very low speed hair pin corner (15 mph), again the rear felt loose and greasy.

When I got home I put it on the center stand and inspected the rear tire and swing arm... nothing unusual, no oil, no slop (maybe a 1/32 movement of the rear tire as I tugged on it left and right), nothing... :?

What could it have been?

Also, unrelated, one of my front fork tubes was leaking oil out of the top... I hit a good sized bump on the highway at 75 mph and wonder if I blew a seal oring in the plug on top... Is that even possible?

 

Have you checked the rear tire pressure. That greasy feeling can come from a underinflated tire. Check the fromt while you are at it.

How much oil on the forks? It is common to see a little dirt build up ring around the forks.

 

I'll check the pressure tomorrow.

The oil isn't at the lower tube/chrome tube seal and dust wiper... It's at the very top of the chrome tube at the top of the triple tree.

I filled the forks with 262ml (if I recall correctly, per chacal I'm sure). Even if I over filled by a few ml, This is the first time in almost a year that it's leaked...

 

Possible the fork cap is loose or the o-ring failed.

 

there should be NO movement in the back wheel. find where it's coming from

 

***BINGO!***

Rear wheel bearings, swing arm bearings--- it shouldn't have any play.

If you still have the original rear shocks and the bike has 38K on it, you need new shocks.

 

Would this be play??? There is no feeling of clunking or shifting...
http://www.youtube.com/watch?v=8j6I5F_bSxo

This is me pulling on the rear tire while pushing on the rear seat grab bar... pretty much as hard as I can.

 

Better look at the swing arm bearings. It should not move like that. Something is going on back there.
MN

 

You realize that the exhaust is mounted to the frame and the amount of movement between the frame and swing arm is almost immeasurable.... watch the tape measure marks near the edge of the shock...

I guess "feeling" that there is no movement may be throwing me off...

 

So.... whats the consensus? Is that rear really moving that much in the video?

 

I watched the video a half dozen times and honestly, without feeling it in my own hands, the video doesn't say "yes" or "no". Maybe you have a member close?

Have you made any changes lately? A harder tire compound (then the old tire)will feel greasy if you aren't used to it, as will a new tire until it's scrubbed it, and so will one with defined "chicken strips" as it goes over past the flat to the roll of the sidewall. If noting has been changed, for this to come on all of a sudden, I'm thinking air pressure in the rear too.


jeff