Ignition Problems
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Seasoned HDF Member
Joined: Jun 2012
Posts: 6,163
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From: CT/FL
I sprayed starting fluid on the intake and nothing changed, so no leaks there... Tomorrow when it cools off I'll verify that valve adjustment hasn't gone bad. I can hear them but didn't notice if that is new or always been like that. I don't have a 5-ohm coil to use, but I did put a 2-ohm ballast resistor in line with the positive side, like on a car.
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Seasoned HDF Member
Joined: Jun 2012
Posts: 6,163
Likes: 2,574
From: CT/FL
I re-adjusted the valves - front intake and rear exhaust were tight. It seemed to help, but still not perfect. I started it on the enrichener and it ran great, but I closed that and it went back to missing. I rode around the neighborhood, and on the enrichener it ran good at low speeds, but felt flat at higher RPMs. With the enrichener off, it missed at low speeds but ran good at higher RPMs. On the enrichener the exhaust has a lot of black smoke when I crack it off idle. I looked up my jets - 31 intermediate and 72 main, which should be plenty...
Cruiser
Joined: Mar 2010
Posts: 105
Likes: 37
I agree. With that jetting, I think it would be a fat mixture. I see folks have made a manifold test block where you can put 10 psi to it,
and spray soap water on the sealing area to check for leaks.
That said, I usually do not try to chase a mixture issue until I know the ignition is as good as it can be.
and spray soap water on the sealing area to check for leaks.
That said, I usually do not try to chase a mixture issue until I know the ignition is as good as it can be.
Seasoned HDF Member
Joined: Jul 2014
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From: Cental, MI
Can't anyway... That's why I keep a Known/Tested Good Points ignition system on the shelf. ..
Seasoned HDF Member
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From: Poolville
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Seasoned HDF Member
Joined: Mar 2010
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From: Poolville
A .031 is big I would try a .0295" I went to a .028" in my E on a modified 74"er and love how crisp the throttle response is..
Last edited by 98hotrodfatboy; Sep 27, 2018 at 03:08 PM.