BMW R1200R R1150R/T F800 K1200R R1100R/T R1250R RnineT Message Board

I had my cables and box replaced @ 35k, a year ago. On a ride today, I noticed that the grip needs a little nudge to to return to idle. Any ideas?

beemerron,
The most likely thing to cause that is the twist grip rubber rubbing against the bar end weight. It is caused by the way the throttle pinch bolt was tightened down . . . with the grip too close to the bar end weight. Check yours and see if there is not any space between them. Since the pinch bolt is often just really snug instead of really tight, your throttle assembly may have migrated out toward the bar end weight over time. Because of that, you may even be able to grab the throttle plastic housing and twist it both ways while pushing it toward the clutch lever to create a small gap. If that is so, a permanent solution is to remove the plastic housing covers and make that pinch bolt really tight.

Have you lubed the Cables? These work very well.
https://www.amazon.com/cable-oiler-lubr ... B009YEYL0I

It's always been my understanding that you do not lube throttle cables on the R. I think the cable sheath has a lining similar to that of Teflon. And maybe that's what it is. Ditto on Rob's response.

I have heard of guys using graphite based products with some measure of success.

I was told by my dealer to never lube the cables as well.

beemerron wrote:I had my cables and box replaced @ 35k, a year ago.

That being said . . . and almost dismissing a faulty installation a year ago, it is more likely a "binding with the bar end weight" problem.

On the other hand, high mileage bikes frequently washed and/or ridden in the rain by a throttle jockey rider can and do wear out the slippery plastic cable lining when the rain water gets in, rusts the steel throttle cable and turns it into a reciprocating saw blade. The first to die is the cable or housing in the right angle bend's interior that connects to the throttle housing. This I have seen, having performed post-mortums on customer's age deteriorated, broken or severely binding throttle cables.
BTW, the clamp-on cable luber and Cable Life spray can linked to is a really good tool, even with plastic lined cables, which will work easier. It protects the cable wire from rusting and lubes them while flushing wear particles and debris down-n-out the other end (if you so desire). Our shop has had a long service life with the originator of that clamp-on cable luber: https://www.amazon.com/Motion-Pro-08-01 ... B0012TYX9W.
Also, you should NOT use spray liquid chain lube, as it is an extreme pressure lubricant, meant to thicken and stay in place.