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Post by re2master on Jun 3, 2013 12:01:30 GMT -5
Here is my scoot. When I ride the speedo shoots up past 70 mph in like 8 seconds. Also the odometer reads fast like I am speeding. Is there an adjustment needed or do I need to replace my speedo gear? :: If this is posted multiple times it is the server having problems not my end as I kept doing as told reposting until I got confirmation it posted. :: Attachments:
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Post by Deleted on Jun 3, 2013 12:20:00 GMT -5
Get a gps on your phone but Chinese odometers are never correct. You probablly mean KPH
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Post by lykos23 on Jun 3, 2013 12:44:46 GMT -5
Ease off the throttle?  |
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Post by carpespasm on Jun 3, 2013 12:56:46 GMT -5
Ease off the throttle? Nah, keep on it! Actually my money would be on a combination of OP reading the Km/Hr numbers since they're usually bigger, and the "optimistic" readings these scooters normally show. |
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Post by re2master on Jun 3, 2013 13:57:53 GMT -5
Actually it is set in MPH with KPH indent ... the speedo reads well past 70 MPH in the non service area with no reading just before it starts at 10 MPH again. Either way KPH or MPH this is wrong .. not so concerned about the odometer as I intend to ride it till it is retired as scrap.
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Post by indymoped on Jun 3, 2013 20:52:55 GMT -5
Chinese speedos are way overcalibrated. I had one that pegged out way way past 50mph when I was doing like 45mph. I used to use a phone w/ GPS for my speedo. Its not immediately responsive but its way more accurate than the chinese speedo. Now I use my tachometer as a reference. (Not super accurate but keeps you within +/- 5mph of the speed you want to be at)
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Post by geh3333 on Jun 3, 2013 21:08:51 GMT -5
I posted a bit before about the speedos. Found that many people that had 13 inch wheels had an accurate speedo. I assume they use the same speedo setup for many wheel sizes which would cause accuracy issues.
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Post by onewheeldrive on Jun 3, 2013 22:13:59 GMT -5
I can't believe odometers are still an ongoing issue. My 2005 scooter is over 10 mph off at top speed.
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Post by indymoped on Jun 4, 2013 7:30:18 GMT -5
I can't believe odometers are still an ongoing issue. My 2005 scooter is over 10 mph off at top speed. It's china and unless people are going to stop buying their product because of the problem they won't fix it. Lol. |
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Post by lykos23 on Jun 4, 2013 7:49:02 GMT -5
I can't believe odometers are still an ongoing issue. My 2005 scooter is over 10 mph off at top speed. It's china and unless people are going to stop buying their product because of the problem they won't fix it. Lol. That's not entirely true. Speedo issues aren't limited to Chinese scooters. - Dave - Carpespasm And I've heard more comments like these ones from all sorts of threads. I'm not sure of a solution other than getting a digital speedo |
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Post by larry001964 on Jun 4, 2013 8:04:52 GMT -5
Hi lykos23
One way I corrected my speedo was to put a larger front tire on my scoot, I put on a Pirelli SL 26 120/90j-10... May not be possible for everyone to do (depends on your front end setup). But my scooter's speedo was always 10 to 15 mph optimistic, this tire brought me to about 3 to 5 mph optimistic.
One other side benefit of the larger tire was pot holes were a lot easier, and far less dangerous to roll over, especially at higher speeds...
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Post by lykos23 on Jun 4, 2013 8:15:22 GMT -5
[replyingto=larry001964]larry001964[/replyingto]Heya Larry.
That makes a lot of sense. It seems like these speedos were all made for different tires or something.
Right now I'm using 3.5-10 tires and my speedo is off by like 9% or so. Sometimes more.
Here are my speedo readings compared to GPS:
4g:
35mph uphill, 33mph GPS
40mph flat terrain, 36mph GPS
45mph downhill, 39mph GPS
Three 4g and three 9g:
32mph uphill, 28mph GPS
40mph flat terrain, 37mph GPS
50mph downhill, 43mph GPS
Six 9g:
30mph up hill, 25mph GPS
40mph flat terrain, 38mph GPS
47mph downhill, 40mph GPS
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Post by larry001964 on Jun 4, 2013 8:35:06 GMT -5
Yea mine was off like that too,
I think the Chinese make one speedo puck, the one down on your front tire hub, and I'm thinking it's calibrated for a 13 or 12 inch tire.. We had many discussions on this on the old scootdawg forum, and many other scooterist that know a lot more than me actually figured this out mathematically..
After hitting 60 mph ( ground timed run, Time and distance calculation ) Fawkes was just outright dangerous to ride.. Any pothole could have sent me over the handle bars.. This seemed to be a good fix... The other benefit was in better handling in wet and slick conditions.. So yea it corrected my speedo, and made Fawkes much safer to drive..
But while I'm thinking of it, the only downside is the larger tire also increased my front brakes effectiveness, so be careful about that..
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Post by lykos23 on Jun 4, 2013 8:48:43 GMT -5
[replyingto=larry001964]larry001964[/replyingto]I can imagine what it was like with these small tires. There's a sunk in manhole on the way to the store where I live, and a few times I've had to jump off my bike and back on it when forgetting to avoid it. China must have the most perfect roads in the world, where speed limits don't matter, because it seems like that's what these tires were designed for. Luckily I don't really have much of an issue with that sunk in manhole or the speedbumps and pot holes anymore. Ever since switching to Pirelli. Did you switch your rim? Or did you somehow manage to just put a different sized tire on your stock rim? I'm intrigued and would love have a somewhat accurate speedometer. I don't know whether it's cheaper to get new calipers, rims, brakes, etc. or to just go with a digital dashboard If you only changed the tire then I'll definitely be trying that out when my pirellis get worn out. |
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Post by larry001964 on Jun 4, 2013 10:27:15 GMT -5
I can imagine what it was like with these small tires. There's a sunk in manhole on the way to the store where I live, and a few times I've had to jump off my bike and back on it when forgetting to avoid it. China must have the most perfect roads in the world, where speed limits don't matter, because it seems like that's what these tires were designed for. Luckily I don't really have much of an issue with that sunk in manhole or the speedbumps and pot holes anymore. Ever since switching to Pirelli. Did you switch your rim? Or did you somehow manage to just put a different sized tire on your stock rim? I'm intrigued and would love have a somewhat accurate speedometer. I don't know whether it's cheaper to get new calipers, rims, brakes, etc. or to just go with a digital dashboard If you only changed the tire then I'll definitely be trying that out when my Pirellis get worn out. Yes I had a 12 tire and rim from scrappy for a while and tried it on Fawkes, but that didn't work very well without making some mods I didn't want to do.. The Pirelli SL 26 120/90j-10 fits right on the stock 10 inch rim.. No mods necessary, for the front, Fawkes has a short case engine (for the moment, Long Case on the way ), so there's no room to put this tire on the back wheel as it hits the engine, Now when the long case arrives, Ill be test fitting this tire on the back as well.. Not sure yet if it will clear the airbox and shock.. will see... |
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