wires and coils

[Jdwags]

Pat,

do the "hourglass test" that i think Ken Talbot has in the tips page, on the wires for the pickup coils..

I thought i had carb and then coil problems, and it turned out to be the pickup coil wires... I was having that problem on Deuce last year, - it was intermittent enough that I couldn't reproduce it.. but when i got stranded on 2 cyl all the way home on a 80 mile ride at 20 mph, i found the coil wires were hourglassed so bad it was finally visible just by taking off the cover..

It might help double check a potenial problem before it bites.

[Dennyz]

I replace the wires on my stock coils. If both coils are good, it is an inexpensive project. In addition, there are colored wires available. I used yellow on my black engine.

check out:


http://www.xs11.com/tips/repair/repair24.shtml

[stpbuzz]

thanks denny

i may be trying this soon !

now that i got my 80gs in tip top shape, i need to start on my sons 80g, and get it in shape next. soon hopefully.

buzz

[Pat Kelly]

I did "the hourglass test" and found one of the wires going to the offending coil was in fact broken. I repaired it but the coil is still bad. To check it I switched the primary leads on the coils then moved the plug wires to the opposite plugs. The known good coil ran off the repaired pick-up coil (wire).
My major setback is the resistance of the (aftermarket) coils. I'm still leery about the differences. Again, Accel has .7 (not enough) ohms or 3.0 (too much) ohms. Dyna shows a 1.5 ohm (what my existing coils are spec'd) but they are 6 volt .
Anyone able to point me in the right direction? (or have a set of good coils for a 78 1100E they'd like to sell?)
Meanwhile I'm going to re-read the FAQ on this subject.


would using .7 ohm coils with 1.5 ohm resistors wired inline work? anyone?

[Bill__Woods]

Hello,
I had a set of 1.5Ohm Dyna coils and they worked fine. I sold them to someone on this list. I emailed Dyna myself about the 6volt rating. I got a very detailed explanation from them and they said it does not matter to the coil if it is 12 volt or 6 volt. I no longer have a copy of the email, if you want the long winded version of "they are ok to use on your bike" go to thier homepage and Email them. It took them like 2 weeks to get back to me, but the explanation was worth the wait.

[Pat Kelly]

My Dyna Coils arrived today. I'll be installing them and taking pictures along the way to add to the FAQ. I'll send them when I'm done Gary.

[lostgmc]

accel coils

OK I have now read all of the replys on this twice and I am not sure if I understand it correctly. I have a 78E and I have a set of accel coils (part # 140403) that came with another 78E that I bought I am trying to figure out if these are the correct ones for my bike I don't know if there were other modifcations on the bike that came with the coils I don't want to mess up the good bike by not doing something correctly so if someone could clear this up for me I would be VERY THANKFUL.

[sixtysix]

Check the primary resistance if 3ohms than OK, if .7 ohms than can't use. The fact that they were already installed on an XS would lead me to believe they were OK.

[lostgmc]

accel coils

Thank You, That is what I was thinking it was but I was not for sure. I checked them and they are the correct ohms.

[skids]

How will you ever decide between 8000 ohm plug caps and 3000 ohm plug caps, I you have to decide? ;-) I would just go with the 3 ohm coils. They are safer.

Originally posted by Pat Kelly
(snip)
My major setback is the resistance of the (aftermarket) coils. I'm still leery about the differences. Again, Accel has .7 (not enough) ohms or 3.0 (too much) ohms. Dyna shows a 1.5 ohm (what my existing coils are spec'd)

[Pat Kelly]

Well, I have installed the Dyna coils. The tech at Dyna said the coils rated at 1.5 ohm (what my 78 uses) 6 volt coils would work just fine. He was right.

I did a write-up with pictures and sent it to Gary (sixtysix) and he's going to be posting it on here.

I have to say that the bike now has a noticeable power increase, more that I thought it would. Installing the coils was actually quite easy. What took so long was taking the pictures along the way, having my daughter delete half of them, then doing the project a 2nd time to re-take the pictures. Well worth it though.

I hope to see the 'how-to' on here soon to share with the other XSives.

[sixtysix]

Pat,

That is a great tech tip, but I am having some trouble 'extracting' the photos from your document, once they are included in the document they are no longer photos that you can just click on and save, they are embedded in the code. I am sure I can do it but it will be a few days before I can figure out how, (working right now) probably will be Wednesday before I get a chance to figure it out. It may be easier (no faster) to just e-mail the photos you used, one at a time, or catch me on Yahoo messenger. Send a message even if it says I am offline, and if I am there, I will answer.

Again thanks for all the hard work.

[sixtysix]

Originally posted by skids
How will you ever decide between 8000 ohm plug caps and 3000 ohm plug caps, I you have to decide? ;-) I would just go with the 3 ohm coils. They are safer.

Are you sure they come in different ratings? I thought they were all around 5K? I was having trouble with choosing the angle and color, now I think I shall sell the XS instead to rid myself of all this quandry........... hehehe

[Bill]

NGK spark plug caps

Gary "sixtysix" Granger wrote:

Are you sure they come in different ratings? I thought they were all around 5K?

NGK plug caps are listed in the 2003 Dennis Kirk Metric Bikes catalog (page 459). They show 5k or 10k ohm caps and one non-resistor cap.

I was having trouble with choosing the angle and color, now I think I shall sell the XS instead to rid myself of all this quandry...

Will that be to make a down payment on that sexy Tuono?