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Coil relay mod question

Started by fjman, February 19, 2016, 07:28:05 PM

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Pat Conlon

Quote from: FJ_Hooligan on March 01, 2019, 11:44:11 AM
As I remember it, the early models with TCI ignition used 2 ohm coils ('84 to '87) and later model with the CDI use 4 ohm coils.

Someone please check me on that.


Backwards amigo
Dyna green 3 ohm on TCI ('84-87) and early DCI ('89-90)
Dyna grey 2.2 ohm on '91-95 DCI
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

FJ_Hooligan

Well, I had a 50/50 chance.  :-)

My confusion is due to running a set of the Grey coils with a Dyna ignition on my '85

(next time I give advice, just do the opposite :-)
DavidR.

Pat Conlon

No worries David, got your back... :greeting:

For years I (mistakenly) thought all FJ's were 3 ohm, but a couple of years ago I learned that 4th gen '91-95's used oem 2 ohm coils.  I've always thought to use the Dyna gray 2.2 coils only with the Dyna ignition, but it turns out you can also use the Dyna gray's with the oem 91-95 ignition.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Sparky84

Quote from: Pat Conlon on March 01, 2019, 02:39:12 PM
Quote from: FJ_Hooligan on March 01, 2019, 11:44:11 AM
As I remember it, the early models with TCI ignition used 2 ohm coils ('84 to '87) and later model with the CDI use 4 ohm coils.

Someone please check me on that.


Backwards amigo
Dyna green 3 ohm on TCI ('84-87) and early DCI ('89-90)
Dyna grey 2.2 ohm on '91-95 DCI

What determines the correct coils to use, is it the type ignition system?

Did the DCI change between 90 and 91?

I've still got standard TCI but also have Hyperpak module for FJ1100 as spare.
So if I change to 4 ohm will they still work on the Hyperpak
1984 FJ1100
1979 Kawasaki Z1300
1972 Honda CB750/4 K2

Pat Conlon

Yes, the 4 ohm will work your FJ and also work with the New Zealand HyperPac.

I used the HyperPac for a couple of years on my '84 but you lose the side stand switch with it, so I went back to oem. I always use the side stand switch to turn off my bike....that way, when the engine is off... I KNOW I've extended the side stand before I dismount....just don't ask why I do it this way.....

I've just got to figure out a way not to leave my ignition key on.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Sparky84

Quote from: Pat Conlon on March 01, 2019, 08:18:54 PM
Yes, the 4 ohm will work your FJ and also work with the New Zealand HyperPac.

I used the HyperPac for a couple of years on my '84 but you lose the side stand switch with it, so I went back to oem. I always use the side stand switch to turn off my bike....that way, when the engine is off... I KNOW I've extended the side stand before I dismount....just don't ask why I do it this way.....

I've just got to figure out a way not to leave my ignition key on.
Thanks but I have to remember now anyway  :yes:

Do the 4 ohm work better than standard?
1984 FJ1100
1979 Kawasaki Z1300
1972 Honda CB750/4 K2

Pat Conlon

Don't know, what 4 ohm coils?

There is nothing wrong with the stock FJ coils. They work great, especially with a better power supply.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3