BMW K bikes (Bricks)

You are not connected. Please login or register

View previous topic View next topic Go down  Message [Page 1 of 1]


1Back to top Go down   A quick ABS Warning Relay question. Empty A quick ABS Warning Relay question. Mon Mar 30, 2020 7:37 pm

Bonzo

Bonzo
Life time member
Life time member
I'm trying to ascertain whether I have a duff abs warning relay. Its a small blue relay with part No: 61311459675. 

I have the relay out on the table and I ran my meter over the pins and there was a reading between terminals 30 and 87 (2.0 ohms). My brother says there shouldn't be a reading there and thinks the switch has welded together. I opened it up and can confirm it isn't welded and can be easily prised apart with a small screwdriver. When the contacts are apart - there is no reading/bleep.

Q. Should there be a reading between these two pins?

    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
The 30 and 87A relay contacts are supposed to be closed when the coil power is off.  That you are reading continuity when holding it in your hand means they are closed like they should be. 

87 is a normally open contact.  It closes when the coil is powered.

87A is a normally closed contact.  It opens when the coil is powered.

Hope this helps and be sure to show it to your brother.

If there is no 87A on the relay, it is the wrong relay.



Last edited by Point-Seven-five on Mon Mar 30, 2020 9:26 pm; edited 1 time in total


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

Bonzo

Bonzo
Life time member
Life time member
Thanks very much .75.

Youre right. It is 87A (my eyes are past their best)

I'll have great pleasure in telling my big bro he's wrong  Twisted Evil

    

duck

duck
Life time member
Life time member
Are you sure that it isn't 0.2 ohms? I just tested four of them that I have and they all measured about 0.2.

Even 2 ohms is a very small resistance though and essentially a closed circuit.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

Bonzo

Bonzo
Life time member
Life time member
I mentioned my eyes were getting worse, so I just double checked on the 2 relays I have.

Both read 2.0 ohms  scratch

    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Duck, the cheap meters I use don't go much lower than 2-3 ohms even when the probes are touched together to check the "zero".  I usually figure anything below 4-5 ohms is continuity.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

View previous topic View next topic Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum