1500 coils and a dyna on a 78. pressure in fuel tank?

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Don R
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1500 coils and a dyna on a 78. pressure in fuel tank?

#1

Post by Don R »

For anyone that has done the coil swap, would I be ahead to remove the windjammer first? What all besides the shelter sides and air filter box needs to come off to get access?
The coils appear new, I'll check ohms before installing and follow the dyna instructions, I assume I remove the ballast resistor and condensers?
I just bought 10' of new plug wire for my cb750 dragbike project so I'm making new copper core wires and re-using the nearly new ngk resistor caps.
Last edited by Don R on Mon Oct 02, 2017 11:17 pm, edited 1 time in total.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
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ericheath
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Re: 1500 coils and a dyna on a 78. Q?'s

#2

Post by ericheath »

You can get them in as described, it's tight but doable. I'm not sure if there is enough slack in all the connections to remove the whole shelter. Maybe someone else knows.
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Re: 1500 coils and a dyna on a 78. Q?'s

#3

Post by robin1731 »

I've changed coils just removing the air cleaner housing. Did not have to remove any of the shelter. The fairing I can't say without being there.

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Don R
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Re: 1500 coils and a dyna on a 78. Q?'s

#4

Post by Don R »

That's good news thanks.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.
Don R
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Re: 1500 coils and a dyna on a 78. Q?'s

#5

Post by Don R »

I got the dyna today, I'm planning on finding a power source other than the turn signals. That seems funky to me. I don't mind a little wiring. With 1500 coils and the dyna do I still need the ballast resistor? I seem to read it both ways.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.
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Re: 1500 coils and a dyna on a 78. Q?'s

#6

Post by ericheath »

Dyna says no ballast needed for coils with a minimum resistance of 3ohms. The 1500's I had were 3.1 ohms.
Whatever I suggest here should be given ample time for a moderator to delicately correct. I apologize in advance.
77 WING, 1200 engine with 77 heads, cams, gl1100 foot pegs, Magna V65 front end, 764A carbs, [-gone Suzuki M109 monoshock--, replaced with gl1100 shocks] gl 1200 swing arm, gl1500 final drive, wheel and rear brakes Valkyrie seat, Meanstreak tank, Sportster pipes, Power Arc ignition off crank.
77 Wing. black
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Re: 1500 coils and a dyna on a 78. Q?'s

#7

Post by robin1731 »

Why not use Dyna coils too? :-?

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Re: 1500 coils and a dyna on a 78. Q?'s

#8

Post by Don R »

robin1731 wrote:Why not use Dyna coils too? :-?

.
I guess I was brainwashed by the 750 guys, other than that no particular reason.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.
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Re: 1500 coils and a dyna on a 78. Q?'s

#9

Post by robin1731 »

I just never understood buying a new ignition then putting used coils on.

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1976 Goldwing Super Sport
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Re: 1500 coils and a dyna on a 78. Q?'s

#10

Post by calif wingnut »

1500 coils are cheap and reliable.
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Re: 1500 coils and a dyna on a 78. Q?'s

#11

Post by robin1731 »

calif wingnut wrote:1500 coils are cheap and reliable.

Your spending the money on a new ignition so cost shouldn't be a factor. A system that is made to work together seems logical. And reliability isn't much of a concern with coils. IMO

I'm done. anim-cheers1

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Re: 1500 coils and a dyna on a 78. Q?'s

#12

Post by desertrefugee »

I can't help but add, but after I thought it was sold, turns out it is not. It? I have a complete Dyna S ignition never installed still in box all the paperwork. PM me if you're interested. I can't seem to get rid of the darn thing.

I'd be happy to sell just the coils. Sorry for the sales pitch, but it fits the topic.
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Re: 1500 coils and a dyna on a 78. Q?'s

#13

Post by Track T 2411 »

desertrefugee wrote:I can't help but add, but after I thought it was sold, turns out it is not. It? I have a complete Dyna S ignition never installed still in box all the paperwork. PM me if you're interested. I can't seem to get rid of the darn thing.

I'd be happy to sell just the coils. Sorry for the sales pitch, but it fits the topic.
PM sent, if I'm not sterling on anyone's toes, lol!
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Don R
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Re: 1500 coils and a dyna on a 78. Q?'s

#14

Post by Don R »

No worries, I already got one. My dragbkie's on the lift, ARD mag on my 750 won't make a steady spark so I'll take it off the lift for now and get busy on the gl. I got my 750 diecast running, so I have plenty of runners again.
Last edited by Don R on Sat Jan 22, 2022 2:14 am, edited 1 time in total.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.
Don R
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Re: 1500 coils and a dyna on a 78. Q?'s

#15

Post by Don R »

Well I got the 1500 coils mounted, new primary and secondary wires made, I cleaned and lubed the wiring terminals while I was in there. It was much easier to remove the windjammer just to reach the left side stock coil bolts. I used the 1500 coil mounts with fabricated angle brackets. The bike started right up and ran for a few seconds, now I'll install the dyna.
78 GL 1000, 70 CB750 sandcast, 70 CB836 hot rod, 1124cc 750 dragbike resto project.
You don't need a weatherman to know which way the wind blows.
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