Ballast Resistor

[xsilerating]

Help!

I have an '80 G' and, have just replaced the stock coils with 'Accels'. My understanding is that, if there is a ballast resistor, it must be removed.

So, does the '80G' have a ballast resistor and, if so, is my information correct that it should be removed?
Also, what does it look like and approx. where would I find it on the bike?

Thanks for any help/info.


Ohhhh, I hate asking dumb questions......

[blue giant]

Ron,

The ballast resistor is on the left side of the frame under the gas tank. It is a stainless steel box about an inch square and about 3 inches long with two wires coming out of it. I believe you remove it if the resistance throught the coils is 3 ohms and you leave it connected if it's 1.5 ohms. I believe if you do remove it you connect both wires together. There is plenty of info on the site, you may have to search for Mikes XS Coils swap.

Hope this helps,
Paul

[Miti-Babe]

Originally posted by blue giant
Ron,

The ballast resistor is on the left side of the frame under the gas tank. It is a stainless steel box about an inch square and about 3 inches long with two wires coming out of it. I believe you remove it if the resistance throught the coils is 3 ohms and you leave it connected if it's 1.5 ohms. I believe if you do remove it you connect both wires together. There is plenty of info on the site, you may have to search for Mikes XS Coils swap.

Hope this helps,
Paul

Mostly correct.... The resistances are wrong way around... The ballast resistor is 1.5 Ohms and it's connected in series with the coils, which are also 1.5 Ohms (only 1 coil connected at a time) so 1.5 + 1.5 = 3 Ohms...

If your accel coils are 3 Ohms, remove the resistor and link the red/white wires (from the main harness) together. (The male/female bullet connectors make this easy). If your Accel coils are 1.5 Ohms, leave the ballast resistor in circuit...

HTH

Miti

[blue giant]

There you go Ron,

Thanks Miti!

[xsilerating]

Thanks guys;

I couldn't see anywhere that the red/white split from the main harness until it branched off to the fuse box and then to the ignitor unit.

I shall go and check again and see if I can find it ... stay tuned.

[Miti-Babe]

That there ballast resistor can be clearly seen if you get down on the LHS of the bike and peer up at the top frame rail... (almost directly above the exhaust cam...

It is held onto a 1" square metal tab on that frame rail by a single screw... The red/white wires come out of the harness in about the same place as the wires for the ignition coils...

HTH

Miti

[xsilerating]

I think I found it... just going to check the part # that's on it now to confirm.

Miti... you were helpful until you wrote "It is held onto a 1" square metal tab on that frame rail by a single screw... The red/white wires come out of the harness in about the same place as the wires for the ignition coils..."
What I'm looking at is attached to a metal clip which attaches the harness to the frame.

(D@mn, I wish it was easier to post pics on this site )

Looking from the top, there are to wires encased in braided type sheathing with one wire soldered at one end of the bracket and the other wire soldered at the opposite end. Part of the bracket is an 'L' shaped tab which is attached to a mounting strip (which holds the wire harness against the frame) with a cable tie.

[randy]

Looking from the top, there are to wires encased in braided type sheathing with one wire soldered at one end of the bracket and the other wire soldered at the opposite end. Part of the bracket is an 'L' shaped tab which is attached to a mounting strip (which holds the wire harness against the frame) with a cable tie.

You found it

[xsilerating]

YUP!

I checked the Yamaha parts listing and, the pic shown is what I suspected was the resistor.

Whew

Thanks to y'all for the help - getting me on the right track and confirming my suspicions.

[egsols]

I'm a liitle late with this, pic borrowed from one of TC's posts, silver thingy below tank mount.

[Rasputin]

Did you ever get the accels all mounted up and working correctly? I should have pm'ed you a pic of mine in case it would have helped. Maybe you can post a pic of your install and when I get the tank of mine I can do the same. Hope those instructions I sent helped some too. Later

[Rasputin]

Couple pics from my install

[xsilerating]

Got them mounted without any problem. However, in typical fashion & through a bit of misfortune, I had to go back and redo the wiring which resulted in a break of the worse kind. Fortunately, I managed to repair it and, SFSG, it's holding. (If there were no such thing as 'bad luck', I'd have no luck at all .

I have a few other things to do in that area and, barring an unpredictable seniors moment , hopefully I'll remember to take a few pics & get them posted .