Honda Pacific Coast ipcrc Archives

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Speedo fail
Written by kjp986 on 6/7/2010 at 04:09 pm

I got a new cable and drive gear, and my mileage is back over 50mpg. Jumped 4-5
first fill up after replacement. Hey, who cares why!
Kevin
'96 PC800

--- In ipcrc@yahoogroups.com, "David" <david.dockstader@...> wrote:
>
> It is really hard to imagine how an old or otherwise unhappy speedometer cable
could affect your odometer. If both ends of the cable are not turning at the
same speed the cable will quickly twist off and your odometer will just stop
working. If your cable isn't turning freely, you will see flutter in the
speedometer, especially at low speeds.
>
> --- In ipcrc@yahoogroups.com, "pwhite422000" <philwhite42@> wrote:
> >
> > It must be catching. I was taking my bike out for a test ride last Sunday
night after doing some work, everything seemed OK, then no speedo or
self-canceling turn signals. I ordered a new cable from Bike Bandit. It came
yesterday. While I was in there I checked my headlight bulb; it was loose too
from a less than perfect replacement last year. I also had the shelter off to
put washers on it for a tank bag. I figured I should check the air filter while
in there. It was clean, but mice had nibbled away at it. I now have that on
order from ServiceHonda plus some other spare parts. I'm hoping they deliver
quickly.
> >
> > --- In ipcrc@yahoogroups.com, "Kev" <kperham986@> wrote:
> > >
> > > Yeah, I'd take a look at the cable. See if you can reach up from under the
front fairing to unscrew it from the back of the instrument cluster. If not,
then you'll have to take off the windshield and the vent behind it. That gives
perfect access to the cluster. Would be minutes to replace if you can reach it.
> > > I got mine from Service Honda, and like I mentioned in my first post, the
cable came with a new O-ring attached. So no need to buy another. That wasn't
apparent from looking at the fiche.
> > > Can't tell you how to evaluate your current cable, but the new ones are
very flexible. Almost like a length of latex tubing. I spun my old one with a
drill, and it seemed ok...
> > > I ordered it on a Monday, it showed up by the end of the week.
> > >
> > > --- In ipcrc@yahoogroups.com, "spacetiger_jc1981" <sanae.ej@> wrote:
> > > >
> > > > Kevin,
> > > >
> > > > Thanks for the post.
> > > >
> > > > I have been tracking my mileage and note its very low - 42.0 avg over 4
fill ups. Riding steady at 65, the best I get is 43.6.
> > > >
> > > > Yesterday on a trip to the lake house, I noted the odometer was only
showing about 85 miles traveled. It should be 90.3 miles which is almost 6% to
low. So I suspect something is a miss, but not sure what. I think you have
provided me the clue where to look - speedometer cable.
> > > >
> > > > A few questions: where did you get your cable from? and how long did it
take you to replace it?
> > > >
> > > > Jerry
> > > >
> > > > --- In ipcrc@yahoogroups.com, "Kev" <kperham986@> wrote:
> > > > >
> > > > > Hi again! Haven't been checking in for quite a while, but I wanted to
relate a quick story from a few weeks back. So I was riding out to Road Atlanta
to watch the AMA Pro races a little bit ago. Saturday rode out, spent the day,
rode back no issues. Sunday rolls around, and I'm headed out to the track when I
notice the speedometer and odometers aren't working anymore. Great, I thought,
speedo cable is shot. With many miles left to ride I started thinking about my
recent drop in gas mileage. I keep track of it on Fuelly.com, and since October
it has dropped from over 50 mpg nearly every fill up to under. Usually between
47-49 mpg. I started wondering if the cable was dragging, and bringing my
mileage down. Not actually affecting the consumption, but showing fewer miles
traveled per fill up. Thereby giving the impression of increased fuel
consumption.
> > > > > Anyway, I got home that evening no trouble. Of course I had to cancel
my turn signals manually, like the common folk! Oh, the horror! LOL! I resisted
the urge to immediately get a speedo cable on order, instead waiting until I
could tear it down the next day. Upon inspection, the cable was indeed intact
and functioning when spun up with my drill. So took off the wheel and found a
broken tab on the drive gear inside the hub. From the fiche I ordered a new
gear, and the two thin washers. I think they act as bearings. Probably were
fine, but they were cheap and I was already in there. I decided to go ahead and
replace the cable. 63,000 on the original, I figured it had served it's purpose.
Also a small o-ring for the bottom connection of the cable. (I found out when
they arrived that the cable comes with a new o-ring.)
> > > > > New cable was a revelation! So flexible and soft, compared to the
stiff old one.
> > > > > Put it all back together with no problem. First fill up after the
repair resulted in 53 mpg!
> > > > > My conclusion is that my initial impression was correct. The old dry
cable was indeed dragging my mileage down, affecting my mpg. Also this was
putting added stress on the plastic drive gear trying to spin the cable, which
resulted in it's failure.
> > > > > Kevin
> > > > > '96 PC800- Givi Trunk, Datel LED Voltmeter, Full LED lighting
Conversion (For Sale)
> > > > >
> > > >
> > >
> >
>