It's 4:40 am here... when I get up (lets not call it morning lol) I
have some things to do to my bike anyway so I'll grab my multi meter
and have a look.
I suspect that it's normal tho.
Actually the more I read and wake up my fuzzy brain something isn't right.
Your testing the 2 wires that go to the horn itself not the wires
to/from the button correct?
My understanding of the horn circuit is as follows.
Batt 12vdc+ -------- 12v+ fuse12v+ ------- 12v+ horn12v+
---------12v+ button(Normally open) 0v ------- 0v ground 0v ----- 0v
neg side of batt. (from ground to batt it's actually frame not wires)
I hope that makes seance to you. If it does and you're getting .2
anywhere I have 0v you're ok. That can be anything from meter
accuracy, to static charge to feedback on the ground side with a bad
ground somewhere (could be on any circuit) If you're getting .2 where
I have 12v (and I have the circuit right) then you have a problem.
What I can't say exactly without knowing where in my line drawing,
and maybe not without actually seeing the bike. But I'll be able to
make a good guess just knowing exactly where in the circuit the .2 is.
for reference a car would be;
batt12v+ --------12v+ fuse 12v+ --------- 12v+ Relay 0v ===---coil
side-- 0v horn button 0v----0v ground. Relay 0v ===------ switched
side--- 0v horn - ground. Auto horns ground internally, bike horns
run a second wire back to the switch for ground.
At 02:58 PM 3/10/2012, you wrote:
So I'm up on the road and I realize my horn is dead. I found some
brake fluid dripped onto it and I figure that could have done it in.
I also used my multimeter and found that one of the wires to the
horn has 12 volts anytime the bike is on, and the other has 12 volts
when the button is pressed. What worries me is that the button wire
has .2 volts when the button isn't pressed. That doesn't seem like
the kind of voltage leak that might kill a horn, but I don't see why
it's not 0 when the button isn't pressed and I hate to put another
horn on just to die in another hour of riding because of a voltage
leak (brake fluid leaks are bad enough). Can anybody else with a 450
check the voltage on those wires and let me know if my voltage is typical?
Pat Patterson
Abbotsford, BC, Canada
VA7PDP
2001 PT Cruiser
83 450 Honda Nighthawk
78 F350 460/C6 on propane
71 Bronco 302/C4/D20 D44/9" {o===o}
"Just add Lightness-"
Colin Chapman. (1928 - 1982)
--
You received this message because you are subscribed to the Google Groups "Nighthawk
Motorcycle Lovers!" group.
To post to this group, send email to nighthawk_lovers@googlegroups.com.
To unsubscribe from this group, send email to
nighthawk_lovers+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/nighthawk_lovers?hl=en.
