Timing Problem/Ignition Modules
HDF Community Team
Joined: Dec 2005
Posts: 5,402
Likes: 2,605
From: NC USA
The timing will get to full advance eventually with higher RPMs. Grounding the purple wire will allow full advance at a lower rpm, similar to ignition points.
If you're trying to "see" the timing advance as you accelerate without the purple wire grounded, that's near impossible.
Set the timing on the advance mark (line) with the purple wire connected and rpms above 2000. It will be correctly set and you can run it with the purple connected or not, whatever you like.
If you're trying to "see" the timing advance as you accelerate without the purple wire grounded, that's near impossible.
Set the timing on the advance mark (line) with the purple wire connected and rpms above 2000. It will be correctly set and you can run it with the purple connected or not, whatever you like.
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Cruiser
Joined: Nov 2025
Posts: 188
Likes: 80
From: Long Island, New York
The timing will get to full advance eventually with higher RPMs. Grounding the purple wire will allow full advance at a lower rpm, similar to ignition points.
If you're trying to "see" the timing advance as you accelerate without the purple wire grounded, that's near impossible.
Set the timing on the advance mark (line) with the purple wire connected and rpms above 2000. It will be correctly set and you can run it with the purple connected or not, whatever you like.
If you're trying to "see" the timing advance as you accelerate without the purple wire grounded, that's near impossible.
Set the timing on the advance mark (line) with the purple wire connected and rpms above 2000. It will be correctly set and you can run it with the purple connected or not, whatever you like.
HDF Community Team
Joined: Dec 2005
Posts: 5,402
Likes: 2,605
From: NC USA
Something sounds off. Any ignition, what you have, Dynatek or points should all reduce the timing as the engine speed nears idle speed.
Run it with the wire unhooked and see how it runs before you drop a wad on a new module.
Run it with the wire unhooked and see how it runs before you drop a wad on a new module.
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Cruiser
Joined: Nov 2025
Posts: 188
Likes: 80
From: Long Island, New York
Agreed. The only thing I can think of is it doesn't have suppression wires on it. It still has the original solid core wires, though it does have resistor plugs. Maybe that's messin' with it? The Dynatek says you need to run carbon wires which I do have a set of. I guess you run resistor wires and resistor plugs with that unit? It has Autolite 4265 plugs in it and it came with an extra set so I just used them instead of buying new ones.
HDF Community Team
Joined: Dec 2005
Posts: 5,402
Likes: 2,605
From: NC USA
Agreed. The only thing I can think of is it doesn't have suppression wires on it. It still has the original solid core wires, though it does have resistor plugs. Maybe that's messin' with it? The Dynatek says you need to run carbon wires which I do have a set of. I guess you run resistor wires and resistor plugs with that unit? It has Autolite 4265 plugs in it and it came with an extra set so I just used them instead of buying new ones.
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Cruiser
Joined: Nov 2025
Posts: 188
Likes: 80
From: Long Island, New York
Replacing the rotor is what made me able to get the timing correct so I think I'll do that. I'll leave the wire off and see how it runs. Like I said, it didn't run terrible before I took it apart so I don't think it'll be any worse. Leaving the wire off seems to be the way to run the Dynatek as well so I'm not sure it'll be worth the extra money to have a rev limiter and adjustable timing maps. Not to mention I'm not sure I can get that bolt out on the bottom of the gearcase cover that has the strap for the sensor wire without pulling the exhaust off. I'm gonna button this thing up and take it for a ride.
Club Member
Joined: Mar 2009
Posts: 66,110
Likes: 51,394
From: Niles Canyon Ca.
Always run suppression wires with any electronic ignition on the bike, copper core doesn't play well with them. Double check the dip switch settings and try curve 2 , voes wire ungrounded.
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Cruiser
Joined: Nov 2025
Posts: 188
Likes: 80
From: Long Island, New York
Done. I replaced them tonight. I had bought a set early on but never installed them. I didn't realize they were solid core and typically I treat solid core wires like lamp cords. If they look good and aren't cracked there's no reason to change them. Carbon core I'll change just because they're old. I put a little shrink tubing around the ground eye and slipped it in next to the ground screw in the harness in case I want to experiment with it. The ground is on the frame just ahead of the tank so it's easily accessible. My screamin eagle module is old. It doesn't have any dipswitches.
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