'79 xs1100sf shaft drive play/slap normal???

[cadjawpondkid]

throttle on /off /on low speed there is slap in drive train,,
is this a normal characteristic or do i have a problem,
it feels excessive,,(my old cx500 honda shaft drive does
not have this slap!)
any help to offer?
thanks!

[jmnjrpa]

Yep,

Sounds like you may have a u-joint problem. There is also the chance of a rear drive issue. I'll leave you with other members who have worked on these areas. Have you put it on the center stand to determine where the slap is at?

[bikerphil]

If you're used to bikes with not much slop, this ain't one of them. Check things out though, u-joint, mid drive, final drive, driveshaft axle splines. Good luck!

[Yahman]

Check this thread out, it will give you some idea of the amount of play in these bikes.

http://www.xs11.com/forum/showthread.php?t=24817

Larry

[MindWebs]

i've got the same bike....

it does have some slop when you chop the throttle.

if your worried and thinking it's to much then tear it down for inspection and
greasing. all else fails you have done some needed maintenence on the bike.

or you may find a bad U-joint, either way you have helped your bike out.

i have torn mine down and i didn't find anything that was worn.

Good luck

[Yahman]

I have torn mine down and i didn't find anything that was worn.

Same here, they're just like that.

Larry