Thursday, December 13, 2018

And the error is...9.4%

Someday someone will explain to me how Harley Davidson's electronics include spot on speedometer, odometer and trips while the Jap's can't seem to get their meters even close. Apparently those working at Kawasaki motorcycles haven't figured it out for the 2019 model year.

Starting with the speedometer meter and GPS readings:

Reading 50 Actual 45
Reading 55 Actual 50
Reading 60 Actual 54

Someone once told me that "legally" a speedo's reading can be up to 10% off, exactly the case above.


Oh, those dirty Japanese, they think us 'mericans and just too stupid to notice. Hard not to notice when you're doing the speed limit and traffic is backing up for miles.

Onward to the Odometer and Trips:

On today's ride, the Odometer and the Trip came in at 139.4 miles. My Garmin GPSMAP 64st came in at 133.2 miles. That's a 6.6 miles, 4.4% error. I mean, I call it an error. I suppose it's really better characterized as a planned difference.

But what's the big deal? Well, with that odometer reading error:


  • you'll be doing each oil change 330 miles early to the point that eventually you'll start doing unnecessary oil changes;
  • you're miles per gallon calculation will be overstated. A 1 3/4 gallon fill up at 100 miles may look like 57 miles per gallon when it's really 54 miles per gallon;
  • when you go to sell it at 70,000 miles, it will really have rolled only 66,900 miles
  • and, last but not least, it's an intentional error meant to confuse and mislead!


You may think, well, that's not a big deal. The japs hope you do because they've obviously painted themselves into a legal corner with these "planned differences." But if you did think it was okay, I'd ask, would you think that it would be okay if your jap air gauge was off 9%? What if the restaurant you ate at gave you change of 90.6 cents on the dollar, because a law says they could do that? How about if you mail ordered a pair of size 11 boots from Revzilla and they send you size 10...and then, when you complain, they tell you a 9% difference in your requested size is "reasonable" and "no big deal." How about we step it up a little? What would you think of an architect that had a 9.4% error tolerance designing your dream home...and then the construction company had another 9.4% error tolerance building the thing? Oh and, yikes!, what about a surgeon with a 9.4% error tolerance poking around and fixing your internal organs. The list of comparables is endless. The real problem/question is why we should be expected to accept any error when the technology is there to avoid it?

And to think...this all started with those dirty Japanese fucking with the error tolerances on the KLX250 meter.

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