Testing a starter relay is quite easy.
basic equipment needed is 12v battery with 2 x wire i use
basic equipment needed is 12v battery with 2 x wire i use
crocodile clips .
you can also use a small test bulb as well .
Buy Yamaha YBR 125 relays on Ebay UK here
you can also use a small test bulb as well .
Buy Yamaha YBR 125 relays on Ebay UK here
i always have a fully charged 12v battery with crocodile
leads knocking about it saves loads of hassle
The relay , the small terminals are what connect to your
starter button and carry a lot less current .
the larger terminals are connected direct from battery to
starter motor so need larger wires to carry the massive
starting currents .
I am using the powerprobe here as its safer but you can just as
easily connect the 12v negative to one side and tap the
positive on the other side you should hear a click as you
touch the positive and remove it .
You can go a step further and add a test light to it and
confirm current it going through the secondary circuit .
to test with a lamp you need to connect one end on test light
circuit to battery positive and the to one of the relays larger
terminals and then use another cable from second larger
terminal to negative of battery ill do basic circuit diagrams
at bottom of page.
Now when you put power to the smaller terminals it should click but also
the light should flash on and off as you tap power .
OK not the best , never have been very good with Windows Paint
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