Speedo/ Odometer probs???

ambassador · 02-04-2007, 10:48 PM

Hi all, 06 Lifan 200gy-5, speedo/odometer not even close!! It seems to be reading 3 miles to every mile I ride if not more.. As far as I can tell my front tire is installed correctly... Does anyone know how to adjust this or is there even a way to adjust this? Next question, had my girlfriend tail me in the car, speedo on the bike says 40 mph just shifting into 5th gear, speedo in the car says 64mph (It's a Camry, I trust it.) I'm running a 17/46 gear combo and the bike moves, no problems there...I don't wanna to have to estimate/guestimate of how many miles and speed with having to do the math... You guy's have been awsome and made my china bike a very good experience and I rely on your help for this one...

gyjoe · 02-04-2007, 11:42 PM

These things vary quite a bit with speedo/odo accuracy. Mine was pretty close for the first 300 or so miles, then the speedometer began to read erratically (yes I lubed the cable). It would start out with an accurate mph reading for the first few miles, then read way too high (100 mph at hwy speed) although the odometer has always remained accurate. Odometer on mine is in km while the speedometer was in mph when it was working properly. The easiest thing to do if you want to check for accuracy of speedo and odo is to strap a gps to the handlebar.

pobiker · 02-04-2007, 11:48 PM

could it be the speedo is supposed to be MPH but is actually KPH or the gear on the hub is KPH? just a thought.

msRandi · 02-05-2007, 03:27 AM

Ok we checked owrs and the speedo stops reading wright at about 55 mph and trip or odometer reads in klicks, any help?
love from the big island

czowner · 02-05-2007, 03:47 AM

You have a KPH speedo (max 140?). To convert miles to kms divide by 5 and multiply by 8. 40 miles gives you 64km. As far as I know the only difference in the drives is the size of the spindle hole, for USD and conventional forks. I have seen 3 different speedos, KPH, MPH and dual marked. The KPH one I saw had white numbers, and the MPH had yellow numbers, my dual marked one is the same.

Jonathan.

ob1 · 02-05-2007, 08:10 AM

Trailtech makes a cycle speedo.

You mount a magnet on the wheel and a pick-up to sense it, and the display.

With a piece of chalk, you mark 1 full revolution of the front wheel, measure it, then enter the value into the speedo. The speedo takes care of the rest.

With the various speedo problems of the chinabikes, this is one sure cure.

Wouldnt it suck to get a speeding ticket because of a faulty or metric speedo?

pobiker · 02-05-2007, 10:20 AM

another thought, is your speedo digital or needdle? sounds like you are reading kph, if didgital may be a reset?

ambassador · 02-05-2007, 12:01 PM

How exactly does the speedo cable work? Aren't most motorcycle speedo cables some what interchangable? ie. If I were to find a cable w/ hub from a Honda (mph) and swap it out with mine (kph) in theory that should work or does it convert inside the speedo housing?

msRandi · 02-05-2007, 04:03 PM

This I have figered out. the speedos were all kph for the U.S. they add a face with mph but the rest of it is still the kph speedo.

culcune · 02-05-2007, 04:29 PM

On my Alpine/Jetmoto, I had alot of fun converting to MPH from the all KM speedo. It kept me busy and taught me a little bit of the metric system at the same time. :P

liverchip · 02-05-2007, 05:44 PM

I the TrailTech cycle speedo a bicycle or motorcycle speedo? I'm thinking of just throwing a bike speedo on mine (magnetic pickup kind).

ob1 · 02-05-2007, 06:06 PM

They make both.

I run a Cateye enduro on one of my bikes, it is technically a bicycle speedo, doesnt really matter until you hit it's max speed. With my bike's gearing, I never hit that.

I'm sure the motorcycle units have higher max speeds.

liverchip · 02-05-2007, 06:44 PM

Ahh ok. I have an old Catseye on my mountainbike. Think I'll throw it on and see how she runs.

deputygene · 02-05-2007, 11:44 PM

If the speedo were to be a KPH model, and the bike was actually going 64 MPH, wouldn't the KPH speedo read something like 101?

czowner · 02-06-2007, 03:59 AM

I have just re-read the post properly and I am confused!!! Its the changing into 5th gear bit, at 64mph? It must be screaming its nut off.

Jonathan.

02-04-2007, 10:48 PM	#1
ambassador Join Date: Jan 2007 Location: Bradenton, Florida Posts: 1,200	Speedo/ Odometer probs??? Hi all, 06 Lifan 200gy-5, speedo/odometer not even close!! It seems to be reading 3 miles to every mile I ride if not more.. As far as I can tell my front tire is installed correctly... Does anyone know how to adjust this or is there even a way to adjust this? Next question, had my girlfriend tail me in the car, speedo on the bike says 40 mph just shifting into 5th gear, speedo in the car says 64mph (It's a Camry, I trust it.) I'm running a 17/46 gear combo and the bike moves, no problems there...I don't wanna to have to estimate/guestimate of how many miles and speed with having to do the math... You guy's have been awsome and made my china bike a very good experience and I rely on your help for this one...
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02-04-2007, 11:42 PM	#2
gyjoe Join Date: Aug 2006 Location: Duluth, MN Posts: 230	These things vary quite a bit with speedo/odo accuracy. Mine was pretty close for the first 300 or so miles, then the speedometer began to read erratically (yes I lubed the cable). It would start out with an accurate mph reading for the first few miles, then read way too high (100 mph at hwy speed) although the odometer has always remained accurate. Odometer on mine is in km while the speedometer was in mph when it was working properly. The easiest thing to do if you want to check for accuracy of speedo and odo is to strap a gps to the handlebar. __________________ 2006 Lifan LF200GY-5
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02-05-2007, 03:27 AM	#4
msRandi Join Date: Jan 2007 Location: Douglas, AZ Posts: 220	speedo Ok we checked owrs and the speedo stops reading wright at about 55 mph and trip or odometer reads in klicks, any help? love from the big island
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02-05-2007, 04:03 PM	#9
msRandi Join Date: Jan 2007 Location: Douglas, AZ Posts: 220	speedo This I have figered out. the speedos were all kph for the U.S. they add a face with mph but the rest of it is still the kph speedo.
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02-05-2007, 04:29 PM	#10
culcune Join Date: May 2006 Location: Yuma, Arizona Posts: 9,035	On my Alpine/Jetmoto, I had alot of fun converting to MPH from the all KM speedo. It kept me busy and taught me a little bit of the metric system at the same time. :P __________________ "They say that life's a carousel, spinning fast you got to ride it well..." TGB Delivery Scooter 150 TMEC 200 Enduro--carcass is sadly rotting in the backyard
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02-04-2007, 11:48 PM	#3
pobiker Join Date: Oct 2006 Posts: 92	could it be the speedo is supposed to be MPH but is actually KPH or the gear on the hub is KPH? just a thought.
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02-05-2007, 03:47 AM	#5
czowner Join Date: Sep 2006 Location: North East England Posts: 313	You have a KPH speedo (max 140?). To convert miles to kms divide by 5 and multiply by 8. 40 miles gives you 64km. As far as I know the only difference in the drives is the size of the spindle hole, for USD and conventional forks. I have seen 3 different speedos, KPH, MPH and dual marked. The KPH one I saw had white numbers, and the MPH had yellow numbers, my dual marked one is the same. Jonathan.
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02-05-2007, 08:10 AM	#6
ob1 Join Date: Jul 2006 Posts: 499	Trailtech makes a cycle speedo. You mount a magnet on the wheel and a pick-up to sense it, and the display. With a piece of chalk, you mark 1 full revolution of the front wheel, measure it, then enter the value into the speedo. The speedo takes care of the rest. With the various speedo problems of the chinabikes, this is one sure cure. Wouldnt it suck to get a speeding ticket because of a faulty or metric speedo?
	0

02-05-2007, 10:20 AM	#7
pobiker Join Date: Oct 2006 Posts: 92	another thought, is your speedo digital or needdle? sounds like you are reading kph, if didgital may be a reset?
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02-05-2007, 12:01 PM	#8
ambassador Join Date: Jan 2007 Location: Bradenton, Florida Posts: 1,200	How exactly does the speedo cable work? Aren't most motorcycle speedo cables some what interchangable? ie. If I were to find a cable w/ hub from a Honda (mph) and swap it out with mine (kph) in theory that should work or does it convert inside the speedo housing?
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02-05-2007, 05:44 PM	#11
liverchip Join Date: Nov 2006 Location: Mystery Spot Posts: 1,223	I the TrailTech cycle speedo a bicycle or motorcycle speedo? I'm thinking of just throwing a bike speedo on mine (magnetic pickup kind). __________________ 2009 XR650L Big Red Pig Tusk bar risers 2007 X-Moto(Jetmoto) GY250 --mods--- 15/40 sprockets UNI Pod Filter 2007 Shineray TMS 200XYi--Betsy Betsy Mods:______________________ Acerbis DHH headlight FMF Powercore pipe Uni Pod Filter
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02-05-2007, 06:06 PM	#12
ob1 Join Date: Jul 2006 Posts: 499	They make both. I run a Cateye enduro on one of my bikes, it is technically a bicycle speedo, doesnt really matter until you hit it's max speed. With my bike's gearing, I never hit that. I'm sure the motorcycle units have higher max speeds.
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02-05-2007, 06:44 PM	#13
liverchip Join Date: Nov 2006 Location: Mystery Spot Posts: 1,223	Ahh ok. I have an old Catseye on my mountainbike. Think I'll throw it on and see how she runs. __________________ 2009 XR650L Big Red Pig Tusk bar risers 2007 X-Moto(Jetmoto) GY250 --mods--- 15/40 sprockets UNI Pod Filter 2007 Shineray TMS 200XYi--Betsy Betsy Mods:______________________ Acerbis DHH headlight FMF Powercore pipe Uni Pod Filter
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02-05-2007, 11:44 PM	#14
deputygene Join Date: Aug 2006 Posts: 254	If the speedo were to be a KPH model, and the bike was actually going 64 MPH, wouldn't the KPH speedo read something like 101?
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02-06-2007, 03:59 AM	#15
czowner Join Date: Sep 2006 Location: North East England Posts: 313	I have just re-read the post properly and I am confused!!! Its the changing into 5th gear bit, at 64mph? It must be screaming its nut off. Jonathan.
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