Weak throttle return...

[cheesewhiz]

:scratch

While riding to work this morning I noticed that the throttle was not snapping back as per usual.

The temp was 33, with no moisture. I have a Throttlemeister which was checked and fine, and I also have a cramp buster. The only thing I can think of that was different is that I had the heat on the grips on high. I rarely use the heat.

I just now checked and the return seems to be fine.

I dunno what gives :dunno ?

Ideas?



(Thanks in advance)

[PGlaves]

:scratch

While riding to work this morning I noticed that the throttle was not snapping back as per usual.

The temp was 33, with no moisture. I have a Throttlemeister which was checked and fine, and I also have a cramp buster. The only thing I can think of that was different is that I had the heat on the grips on high. I rarely use the heat.

I just now checked and the return seems to be fine.

I dunno what gives :dunno ?

Ideas?



(Thanks in advance)

It is very typical for heated grips on high to get sluggish when a Throttlemeister is installed. The grips elongate often beyond the range of adjustment for the Throttlemeister. So if the TM works on cold grips it is too tight on hot grips.

Test it again, by turning the grips on high and seeing if you can back the TM off enough to fully release. My hunch is you can't eliminate all the drag with the grips on high. Which is why I took my TM off and gave it away and installed a Bob's Wrist Rest which has at least three times the adjustability of my TM.

[Jeff488]

You could also try to adjust the TM according to their instructions. IIRC, they say to put a piece of thin cardboard or such like in between the TM and the throttle tube and then tighten the control pod, or whatever it's called.
That's what I did, and it works fine.

[PGlaves]

You could also try to adjust the TM according to their instructions. IIRC, they say to put a piece of thin cardboard or such like in between the TM and the throttle tube and then tighten the control pod, or whatever it's called.
That's what I did, and it works fine.

You may well be right. TM provides some very thin washers (shims) that adjust the TM on the end of the bars to control how close it is to the end of the grip. But - in the case of my R1150R, if the TM was adjusted to reach the grip and apply sufficient pressure with the heat off - then I couldn't back it off far enough to fully release with the heated grips on high. The linear expansion of the grip was greater than the adjustability of the TM. This varies from bike to bike, depending on the grips that are on the bike.

The sluggishness he described exactly fits what was happening with my R1150R. I added shims, removed shims, and moved the controls (and grip position) on the bars. When I got it working on a temperate day - say 70 degrees - then it wouldn't hold on a 50 degree day, and when I got it right for cool days - say 40 to 50 with the grips off, it wouldn't fully release with the grips on high. Ok on low, but not on high. I finally just got tired of fooling with it.

[Jeff488]

OK, I can relate to that.
The aggro level exceeds the willingness-to-fiddle level.

[cooltomcat]

It could also be possible that your cable is frayed inside the cable pulley box, like mine was. Caught mine with only 2 wires holding on. It's a bit of a job though, cable box is located underneath the battery box. Suggest you start there.