MINSK Repair Manual page 40

(1) Just the Horn Dies
Remove one of the wires from the horn, touch it to the frame, start the bike and
hit the horn button. If it sparks then you know the horn is broken. If not then the
wires are most likely to be loose. Check that the connection points on the horn
with the wires are good. Take a match and slide it through the hole on the
connection clip on the horn to keep it connected to the wires. Alternatively, scrape
any rust off the clips, pinch the female clips so that they are tighter and check that
the plastic on the wires are not worn down, loose or cut. Otherwise remove the
seat, look at the rear of the electric box and ensure that the wire connected to the
"1" terminal is secure. Then go to the horn itself and ensure that the small nut in
the middle of its front side is tight. The tightness of this nut determines the pitch of
the horn. If still no luck, open up the switch casing on the left-hand side of the
handle bars and check that the horn button is doing its job correctly by forcing the
brass plate against the terminal. The best way to do this is to use a piece of metal
to make the same bridge connection as does the action of pushing the horn button
to see if that results in a blast from the horn. Then use sandpaper to make the
connections in the switch better.
(2) Both the Back and Front Lights (But not the Horn) Flicker or Die
Take off the seat and look at the electric box. Check that the connections at
both ends marked "02" are secure. Scrape any rust residue on the clips. Notice that
at the rear end of the electric box there are two connection points marked with a
"02". These are interchangeable so change the wire over and see if it makes a
difference. Then give the bundle of wires under the tank and seat a shake to see if
it makes a difference. If it does, home in on the faulty wire.
(3) Just the Front Lamp Flickers or Dies
Check the bulb for failure. Check that the clips on the bulb are rust free and are
tightly connected to the plastic plug. Ensure that the other plastic connection plug
just outside the back of the head-lamp casing is connected to the wires going into
the head-lamp casing. Remove any water from inside the head-lamp as it can short
the circuit.
(4) Just the Back Light Flickers or Dies
Remove the back light's red casing and check both bulbs for obvious failure.
Know that the top bulb is activated when you apply either the front or back brake
whereas the bottom bulb comes on whenever the front head-lamp is on. Swap the
bulbs over with a bulb you know works (the indicator bulbs are the same size) to
see if all you need to do is buy a new bulb. If no luck then remove any rust or
residue from the brass connection points for these two bulbs with a screw driver
and sandpaper.
©Digby Greenhalgh 2000
Minsk Repair Manual
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