Another Speedo Question

Corsair · Post by **Corsair** » Fri Jun 01, 2007 1:53 pm

Is there anyway that the speedometer can be adjusted so that it shows your actual speed (not the optimized speed)

ERik3tb · Post by **ERik3tb** » Fri Jun 01, 2007 2:19 pm

The dealer I asked that question to in Salt Lake City told me no. Stating that even your car is about 5% optimistic and that there isn't a way to effectively calibrate it.

I'm no mechanic so I can't vouch for what he told me. Just passin on the word

Tbone · Post by **Tbone** » Fri Jun 01, 2007 3:57 pm

I've seen on here and modern vespa where people mount GPS devices to their scoots. That's not the best way to calibrate but does give you more of an accurate "real" read on how fast you're traveling.

lobsterman · Post by **lobsterman** » Fri Jun 01, 2007 4:33 pm

Corsair wrote:Is there anyway that the speedometer can be adjusted so that it shows your actual speed (not the optimized speed)

I haven't taken it apart to see what's there, but those kinds of dials can sometimes be adjusted with a pot. The goal of calibration is usually to be as accurate as possible throughout the normal range it would display. If you could adjust it you'd really have to play with it (and verify actual speed) at various speeds to improve the overall accuracy, if that's even possible.

Much easier to just be aware that it's telling you you're going a little faster than you really are.

Keys · Post by **Keys** » Fri Jun 01, 2007 7:47 pm

They probably cannot be adjusted by dialing in a "pot" (potentiometer). The speedo is gear driven and the calibration is off by a percentage, not "so many miles per hour". If you dialed it in at, say, 30 m.p.h., it would still be incorrect at all other speeds. The only way to change it would be replacing the gears that provide the reading.

--Keys

BlueMark · Post by **BlueMark** » Fri Jun 01, 2007 10:38 pm

Keys wrote:The only way to change it would be replacing the gears that provide the reading.

Or printing out a new dial graphic and pasting it over the existing one - which would be fine in daylight but wouldn't backlight correctly. You might be able to replace the entire printed facing with your own custom design - and recalibrated speedo graphic over the bare transparent base so that backlighting works correctly.

-Mark

Corsair · Post by **Corsair** » Sat Jun 02, 2007 12:33 am

Man I love this message board... thanks for all the replies. BlueMark your suggestion is a pretty good one.

BlueMark · Post by **BlueMark** » Sat Jun 02, 2007 1:15 am

Corsair wrote: BlueMark your suggestion is a pretty good one.

Maybe, but darn tough to do.

-Mark

louie · Post by **louie** » Sat Jun 02, 2007 2:27 pm

i wouldn't advise wearing only a speedo while riding your scoot in chicago.

BlueMark · Post by **BlueMark** » Sat Jun 02, 2007 4:49 pm

louie wrote:i wouldn't advise wearing only a speedo while riding your scoot in chicago.

I dare say that is the MOST likely place you'd ever find me wearing a speedo.

Modern Buddy

Another Speedo Question

Another Speedo Question

Re: Another Speedo Question