What would cause inconsistent spark?
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Seasoned HDF Member
Joined: Sep 2010
Posts: 10,238
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From: Indiana
Dirty ignition switch or other dirty electrical connector shouldn't make only the front plug miss. You should be able to touch both plug wires without any shock. I usually use a grounded screwdriver, holding it by the plastic handle and running the metal over the plug wires. If you see/hear any spark, the wire is bad, or MAYBE the plug or wire to plug connector, but usually the wire. I find the grounded screwdriver to be less painful than the bare hand, but that's also a valid test.
You did swap the wires at the coil, right? Just the coil plugs. If it moves to the back jug, bad coil.
You did swap the wires at the coil, right? Just the coil plugs. If it moves to the back jug, bad coil.
Thread Starter
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Seasoned HDF Member
Joined: Sep 2010
Posts: 10,238
Likes: 799
From: Indiana
Well. I don't think it's a spark problem now. The tester I bought (and maybe it's not a good way to test) lit up just like it was supposed to. Both cylinders the same.
I'm going to look at the jetting again.
I'm going to look at the jetting again.
Outstanding HDF Member
Joined: Nov 2013
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iPhone? Youtube? Fixed in minutes. These guys will know once they see it live
Seasoned HDF Member
Joined: Aug 2007
Posts: 8,199
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From: NW AR
You didn't ask how to fix a jetting problem or a carb problem. You asked what would cause inconsistent spark. I think we answered that one. Now, for your problem, have you tried Sea Foam? I hear it works well for things like that.
Seasoned HDF Member
Joined: May 2008
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From: South Carolina
It might ping, it might kick back on start up, it might run weak.
But I would not call a misfire a symptom of incorrect timing.
But I would not call a misfire a symptom of incorrect timing.
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
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From: Haslet Texas
Having pondered on TD problem for what seems like ages (at least 2 minutes) I have come to believe his bike is drunk on too much seafoam!!!
Perhaps if he quit pouring that stuff in his bike all the time it would sober up and ride right????
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Seasoned HDF Member
Joined: Sep 2010
Posts: 10,238
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From: Indiana
You bunch losers. Bwaaaaaaaaaaaa.... When I have a moment, I'll tell you what I did that seems to have helped immensely.......... Right after I get the breather bolt I snapped off out of the hole.........
The tech support at S&S a clue..............
The tech support at S&S a clue..............
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Seasoned HDF Member
Joined: Sep 2010
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From: Indiana
So, the helpful gent at S&S told me that a pipe switch can do all kinds of weird stuff and suggested 2 things.
1. Change the intermediate jet to .028.
2. Remove the set screw ......................
Anyone know where the set screw I'm referring to is located?
The gent told me, if he was still wrenching, he'd have a drawer full of them.........
Can't wait to take a ride. I can tell you I was putting through the neighborhood at 15 mph, and I'm thinking the problem is gone.............
1. Change the intermediate jet to .028.
2. Remove the set screw ......................
Anyone know where the set screw I'm referring to is located?
The gent told me, if he was still wrenching, he'd have a drawer full of them.........
Can't wait to take a ride. I can tell you I was putting through the neighborhood at 15 mph, and I'm thinking the problem is gone.............
Road Master
Joined: Jan 2008
Posts: 1,187
Likes: 8
From: Montgomery, AL
So, the helpful gent at S&S told me that a pipe switch can do all kinds of weird stuff and suggested 2 things.
1. Change the intermediate jet to .028.
2. Remove the set screw ......................
Anyone know where the set screw I'm referring to is located?
The gent told me, if he was still wrenching, he'd have a drawer full of them.........
Can't wait to take a ride. I can tell you I was putting through the neighborhood at 15 mph, and I'm thinking the problem is gone.............
1. Change the intermediate jet to .028.
2. Remove the set screw ......................
Anyone know where the set screw I'm referring to is located?
The gent told me, if he was still wrenching, he'd have a drawer full of them.........
Can't wait to take a ride. I can tell you I was putting through the neighborhood at 15 mph, and I'm thinking the problem is gone.............