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On the horn. If it's like the GM style, there is a star head screw on the back side of the horn and sometimes you have to adjust the screw in or out to get the optimal tone.. I actually se a High GM horn.. I think they work the best and fit like stock... Mine is a 2 wire with it's own ground which is what you'll need if you mount the horn behind the cow bell because of the rubber Isolator.. In the pick below I'm just indicting the screw..
Horn issues are usually related to the ground, give it a look. Carry on.
Went home during lunch and checked. Horn works great with direct jumpers from the horn to the battery. Even if I connect a jumper from the battery - post to the ground terminal on the horn, I still just get a short blat and then nothing when you press the button. When putting a meter on the ground connection and the horn signal wire from the harness, when the button is pushed, the voltage first goes to between 4-6 volts for about a half a second and then jumps straight to 12.4 volts (this is with the bike not running). The horn behavior is probably being caused by this. I put the bike on a charger where the horn was getting 14.4V and it still behaved the same way. I have reached out to the manufacturer of the harness to see if they can help.
Some of those horns use some serious juice so consider the gauge of the wiring that is currently feeding it and the possibility of wiring in a relay and larger gauge wiring to feed it power. Don't really know how your it set up is, so just tossing it out there. I run a dual hi/lo note horn like yours and used a relay circuit. Nice and loud.
I want the cage to think they are merging into an old 1970 Buick Electra 225.
Sounds like you have a poor connection or contacts in the horn switch. Try a jumper wire across the pins in the connector to the left hand control wiring and see what happens.
I picked up a 3 terminal horn relay and will try this tomorrow afternoon. This relay grounds the coil through the frame of the relay so I will just bolt it to the frame. This should fix the issue. If not, I will start chasing down wiring issues. Nice thing about the relay is that I eventually want to add a higher powered horn to the bike and this will have me already setup to wire it in.
On the horn. If it's like the GM style, there is a star head screw on the back side of the horn and sometimes you have to adjust the screw in or out to get the optimal tone.. I actually se a High GM horn.. I think they work the best and fit like stock... Mine is a 2 wire with it's own ground which is what you'll need if you mount the horn behind the cow bell because of the rubber Isolator.. In the pick below I'm just indicting the screw..
I use the horn from my '87 Dodge pickup. *MUCH* louder than the stock bike horn that came with my '97 FLSTC. The Dodge horn also fits perfectly under the chrome bell. I despise pretty much any Dodge that isn't a muscle care era...I hate them as much as I hate pine trees. You don't want to know how much I curse pine trees anytime I have to mow or weed eat or chainsaw one down and then have to buck it and then find a place to throw the crap over the fence at without it looking like a trailer park dump. I often compare the Dodges with the pine trees - they're both equal. So this is a special thing Dodge did and had that was actually 'A Good ThingŠŽ', lol.
Milestone tonight! Got the pipes on. Still need to install the heat shields and baffles. But, after fighting that rear nut on the rear pipe, I was done for the evening.
Major milestone today. I made a makeshift gas bottle and fired her up! After correcting a wiring issue, she ran great. I still need to probably raise the idle slightly. It might be too low. You can hear it in the second video. I still need to install the baffles and heat shields. Also waiting on the tank and fenders from the painter. But dammit she is alive!
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