1985 K100 RT That didn't run...does now with issues!

[Supershooter]

Laitch,

I was figuring the readings Bert showed in his repair guide were benchmarks to use, 2.6 Ohms and 12.6 Ohms respectively.

I can retest to see if I can get a better reading. I was surprised I didn't get a reading since the plugs all showed a spark when I tested them.

Supershooter

[Laitch]

I can retest to see if I can get a better reading. I was surprised I didn't get a reading since the plugs all showed a spark when I tested them.

The coils might be faulty but you'll need to be certain your probes are making good contact with the terminals. I don't think they are.

[Timbox]

Trying to reach into the wire holes is hard to do and get a good reading.  With these good temps are having get her up and running.

[Laitch]

Trying to reach into the wire holes is hard to do and get a good reading. 

I'm having trouble picturing what is hard about this. What methods have you tried?

I'd be inclined to stick a framing nail head-first down in there then touch the probe to its shaft, but I might twist up some electrical wire into a dense column that would be long enough to protrude from the opening, push it down in there then touch the probe to it. If I had an old spark plug lead, I might cut it to length, shove it in there and try it.

If you've done things like that and can't get consistent readings then it might be time to replace the coils.

[The Mighty Gryphon]

PLEASE READ THIS!

http://www.k100-forum.com/t6114-1984-85-k100-ignition-coils

Posts #1 & 2

[Laitch]

PLEASE . . .

Please

[The Mighty Gryphon]

The Godfather!

[Laitch]

The Godfather!

The Godfather and his designated healthcare provider.

[Supershooter]

I read, the link, and more than just posts 1&2.


After reading and becoming slightly confused, I've decided to order new Bosch ignition coils, plugs wires and alternator.


I'll get parts ordered and installed and let everyone know if we make progress or not. I'm keeping my fingers crossed.


As one of my coworkers says, "there isn't a problem that can't be fixed by throwing money at it" so here we go!


Supershooter

[Supershooter]

As I'm shopping for new ignition coils I've found a Bosch replacement coil on Euromotoeleterics website, but it only has 2 posts to attach wires whereas my old coils has 3 posts. Do I order them or are these incorrect?

http://www.euromotoelectrics.com/product-p/boigncoil-k513.htm

Supershooter

[johnny]

greetings...

if your moto is (k589) and is listed in their application table... i think you are good... butts at that kinda dough id call them... they are 100% pro and will know for sure...

j o

[Laitch]

but it only has 2 posts to attach wires whereas my old coils has 3 posts. Do I order them or are these incorrect?

Stay calm. There's the third—at the tip of the arrow.

[Supershooter]

Thanks, I really didn't want to fiddle around sending back incorrect parts. they'll be ordered shortly.

Supershooter

[Supershooter]

Reman Alternator and new plug wires got here earlier this week. Still waiting for ignition coils.


I’ve got the old alternator out and am work to reinstall the new one, any tricks to get it to slide in? I’m fighting to get it in, the new rubber gasket seems to be a pia to get slide onto the driver.


Supershooter

[The Mighty Gryphon]

If you are referring to the monkey nutz in the alternator here's what I do.

Mark the spots on the outside of the alternator clutch hub with a sharpie marker where the fins on the drive dog need to align to slide in between the monkey nutz.  There should be some lines molded into the hub at these points as well.  Lube the nutz and the fins on the dog liberally with vaseline.  With the sharpie marks lined up with the fins push the alternator into place. 

It helps a lot to have the starter and the battery out for this job.  The more room you have the easier it will be.

[Supershooter]

TMG,
I never imagined I'd see monkey nuts and vasaline in a post about mc repair,  :hehehe


I'll give the lubricant a try later this week as adulthood is going to start consuming my time agin.


Thanks for the ideas.


Supershooter

[Supershooter]

TMG,


Copious amounts of vasaline on monkey nuts, makes the alternator slide in like without an issue.


I removed the starter, cleaned electrical connections that had dry corrosion, slide the alternator in, slide the starter back in, it was really satisfying when everything worked like it was supposed to.


Still waiting for the ignition coils.


Supershooter

[Martin]

Smear a bit of Kopper Kote around the mating surfaces of the starter, it will save you grief in the future.  :dunno2:  A mate had to rig up a slide hammer setup to get his out, it had corroded in.
Regards Martin.

[The Mighty Gryphon]

Good to hear you are getting it back together.  Here's hoping you are out riding soon.

[Supershooter]

I removed the radiator, cleaned the fins and rinsed with water. After cleaning the radiator I bench tested the fan. Finally something worked like it was supposed to!


The new alternator, ignition coils, and plug wires are installed, I'll get everything buttoned up and try to start it again. I hope it starts...


Supershooter

[Supershooter]

I’d there anything I should be checking in here?
Supershooter

[Supershooter]

After reassembly it started, I was sure how to react. I rode it around my yard. I'll try it again later today and see what happens.,


Supershooter

[Laitch]

After reassembly it started . . .

That's just plain weird. :giggles

[stokester]

TMG,


Copious amounts of vasaline on monkey nuts, makes the scrotator slide in like without an issue.


I removed the starter, cleaned electrical connections that had dry corrosion, slide the scrotator in, slide the starter back in, it was really satisfying when everything worked like it was supposed to.


Still waiting for the ignition coils.


Supershooter

Did you clean the starter while you had it out? -> [size=78%]http://www.ibmwr.org/ktech/starter-cleaning/starter-cleaning.shtml[/size]

[Supershooter]

Gentleman,


Strokester, I wasn't aware of the need to clean the starter or would have done that while it was apart, not that it can be tore apart again, but at this point it runs seemingly well.


Laitch, my surprise comes because I'm not exactly sure what I did to fix the problem. With that being said I'm concerned I'll go out to start it next time it and won't start. Paranoided I know


On a side note, I was able to ride the ole girl to town a 100 temps to have ice cream with my wife and kids and fill the tank with fuel. Oh my that thing is hot to ride when it's hot outside WOW!


The headlight doesn't come on when the bike runs, so I'll have to get that working and the bike is leaking brake fluid somewhere around the master cylinder area.


It looks like this will be an on going project from the foreseeable future, but atleast it runs! Hooray!!!


Supershooter