Relay voltage

Petorius

New Member
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Okay this might sound like a silly question but could someone please confirm the rated voltage of the relay coils, specifically K50 fan relay?

I am measuring 9.7V and either i have a voltage drop from the ECU being 12V or or the ECU signal is 9V and i have a faulty 9V relay.

The back story is i have just got the bike back together following engine rebuilt (bought the bike in bits), it has been sat around for a few weeks due to lockdown but i finally took it for its roadworthy test last week and it broke down on the way about a mile from home on high coolant temperature. Fortunately this was due to the temperature sensor cable touching a clamp bolt on the exhaust and melting through and shorting. This is now sorted but it highlighted another issue in that the fan did not come on. I have tested the fan which is fine, continuity tested all the wires, relay measures out okay, power supply (13.4V) to inlet relay contact but not getting a feed from the relay to the fan.

Just wanted to make sure the relay was not a 9V item before pulling the tank cover of to get to the ECU.
 

Petorius

New Member
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Okay managed to answer my own question, found the relay specification.

Specification here if anybody is interested or wants to find an alternative.


Looks like i have a bad connection somewhere.
 
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