1 Speedo Sensor Resistance values for information Sat May 07, 2011 3:28 pm
shaftdrive69
active member
Saturday
Trying to get my speedo to work after a layoff, I checked the resistance of the sender and got 2.8k Ohms, the same value was available on pins two and three of the speedo connector, so my cleaning of the right side connection was ok.
I was puzzled as I have seen two resistance values in my searches - 2.8k and 280.
Hope this is useful to someone
Another update of this speedo saga, Monday
I bought a new boxed blue sheet thing today from Motorworks - sadly when I look at the two together, the new one is different. Seems this one is meant for a later bike. However, having separated the old blue thing from the speedo and tacho I was able to check continuity between the main pins and copper tracks - seems it isn't knackered like I thought. Perhaps it is just the speedo board which has gone.
Looks like I need to speak to them in the morning!
Tuesday
I phoned them this morning and took the afternoon off work to visit them yet again. The blue connector sheet thing was returned for a full refund. I have fitted a new speedo board and I'm back in business! I'll be able to return the used sender I got to try for a refund at the weekend as mine has been eliminated from the enquiry now! Woo Hoo!
Steve
Trying to get my speedo to work after a layoff, I checked the resistance of the sender and got 2.8k Ohms, the same value was available on pins two and three of the speedo connector, so my cleaning of the right side connection was ok.
I was puzzled as I have seen two resistance values in my searches - 2.8k and 280.
- It turns out the 2.8k Ohm resistance value applies to the metal bodied sender fitted to my 1984 K100RS. It bears the number 1 459 013 under the word MotoMeter and has a cross-point screw above the pickup barrel.
- 280 Ohm applies to a black plastic version which was probably later.
I checked these personally at a Yorkshire breakers this morning.
Hope this is useful to someone
Another update of this speedo saga, Monday
I bought a new boxed blue sheet thing today from Motorworks - sadly when I look at the two together, the new one is different. Seems this one is meant for a later bike. However, having separated the old blue thing from the speedo and tacho I was able to check continuity between the main pins and copper tracks - seems it isn't knackered like I thought. Perhaps it is just the speedo board which has gone.
Looks like I need to speak to them in the morning!
Tuesday
I phoned them this morning and took the afternoon off work to visit them yet again. The blue connector sheet thing was returned for a full refund. I have fitted a new speedo board and I'm back in business! I'll be able to return the used sender I got to try for a refund at the weekend as mine has been eliminated from the enquiry now! Woo Hoo!
Steve
Last edited by shaftdrive69 on Tue May 10, 2011 5:25 pm; edited 4 times in total (Reason for editing : updates/additions)