The battle continues - 15 years down and will she live again? - Ignitor issues?

[007jag]

Hello,

Wow what a ride trying to get to ride.
The quick back story:
My 85 GS700es stopped running 15 years back - many family issues left her neglected. But over the last few months I've been trying to bring her back to life. To date have replaced all the normal parts - ie: Battery, chain, brake pads, new petcock and the tank finally got back from the radiator shop and is now clean of MAJOR rust. Tore down all calipers, cleaned and replaced piston seal & dust boots, Repaired stripped oil cover bolt, put new oil in. Replaced bad fork seals and upgraded to progressive suspension for springs. Lots & lots of cleaning and still have some body work & paint to finish.

And many members here have helped and supplied some needed parts.
Well last night we pulled the valve cover to set valve clearance and found all right at .004 - right on per the manual - Yahoo!

She had gone through 2 R/R and when she died, she would start - run for a very short time and them blow the main fuse. At the time I suspected the R/R. But per the forum recommendations I tried testing the stator. Honestly I was confused and the results did not seem to make sense. So suspecting the R/R I purchased an Electrex replacement and installed that last night too.

Then the moment of truth, we tried to fire her up --- But no spark.
So started going through the tests and coils appear good - as do the ignition pick ups and have voltage at the ignitor. But the jumper test (per the manual) showed no spark at #1 or #2 plug.
So it appears the ignitor has gone bad? - part # 32900 - 31310 which was superceded by 32900 - 49420

I've been running some searches on the subject and reading all morning.
It looked like at one time a member (Saddlewarmer) was attempting to repair some models of the ignitor. Apearently he is no longer on the board and I think another member has some similar information. I can't recall now who that is ( the post's are starting to blur)

If anyone is aware of a repair service please let me know??

On another track, it appears the ignitor used on my bike is interchangeable with some other GS models the 83 GS1100 & GS 850 with different "G_" designations.

Following that road I've contacted one member with a gs 1100 who has replied his part # is 32900 - 45411.

Does anyone know if this part will work??
Additionally some of the replies I've read indicate that the "advance curves" may be different 1100 to 750/700.
I have no training or experience with these issues - would someone know what effect this may have?

Finally if anyone has a direct replacement they could part with - please contact me, my email is jag007@clear.net

Thanks again,
Jack

[ramrod400]

This is a little off topic,But friend has ingnitor issuse and was wondering if dyno ingnition and coils do away with ingnitor or eliminate the need for ingnitor

[Tarbash 27]

I have one off an 83 GS750E, the numbers on it are

32900-49420

Bike ran great before I parted it out.

PM me if you need it.

[mike_of_bbg]

Yes, the Dyna S system does indeed replace the ignitor as well as the signal generator. You can use it with stock coils in most cases, though you didn't specify which bike your friend has - but if it's already EI then they should work. Bear in mind that the Dyna S is designed for bikes with mechanical ignition advance. The later GSes have the advance curve built into the ignitor, and the Dyna S doesn't emulate that. If the bike doesn't have mechanical advance, you'll need to either retrofit one (search the forums, this has been done) or go Dyna 2000 for more $$$.

This is a little off topic,But friend has ingnitor issuse and was wondering if dyno ingnition and coils do away with ingnitor or eliminate the need for ingnitor

[LeeGS550E]

I believe your manual should have a test for the ignitor as well as the coils. Gives you the proper resistance readings accross the different pins in the ignitor plug. I ran through that with my 550 when it's ignitor went bad. I've got the factory manual on my computer at home - I'll try to look tonight.

[blowerbike]

dyna does not offer a dyna S for the 83-86 GS550-GS700-GS750.
the 550 takes a box all by itself.
the 700-750 boxes will interchange.
the 1150 box will work also(less advance curve).
the above mentioned ign. boxes in the original post will not fit/work on a 83-86 700-750.
i have never seen a bad crank trigger on these models unless it was involved in an accident(these are just magnets).

[LeeGS550E]

dyna does not offer a dyna S for the 83-86 GS550-GS700-GS750.
the 550 takes a box all by itself.
the 700-750 boxes will interchange.
the 1150 box will work also(less advance curve).
the above mentioned ign. boxes in the original post will not fit/work on a 83-86 700-750.
i have never seen a bad crank trigger on these models unless it was involved in an accident(these are just magnets).

Yes, the 550 is its own little PITA. I'm hoping he can completely diagnose that the box is bad before he replaces it just to see if that fixes the problem.

[V84ME]

Hyperpak

I had a similar issue years ago. There was, and may still be an igniter from New Zealand called Hyperpak. I purchased mine from Ebay, and it brought my GS1150 back to life.

[chef1366]

I'd jump on MR. Tarbash's deal. If indeed that is the problem.

[LeeGS550E]

I finally remembered to find the manual on my home computer. I'll PM you and try to get an email address where I can send the file. The factory manual has the test procedures to use an Ohm meter to check the signal generator and ignitor.

[007jag]

Lee,
Replied to your PM.
Thanks much,
Jack