Fj1200 buggy, no spark.

[Fj1200buggy]

Hi, about 2 months ago i tested the buggy and my engine began to run rough and it stalled allot, the next thing it wouldn't start at all. I noticed that my middle coil wasn't sparking, I tested it by swapping the 2 coil plugs and it works.While I crank the engine the ic ignitor and the middle coil gets a bit warm. Any ideas?

[Fj1200buggy]

Ok now it has no spark 

[Fj1200buggy]

I opened the left side cover and saw that the points? were not touching the rotating thing, should it?
please help, Erik.

[fj11.5]

Hi mate, no they don't touch the timing rotor,just a small gap,  about  1mm or so, think its a set distance and not adjustable

[racerrad8]

I opened the left side cover and saw that the points?

Points...?

Not on an FJ1100/1200.

I have to ask, are you sure you have an FJ1100/1200 engine? It might be worth posting a photo of it.

Randy - RPM

[Fj1200buggy]

Well the engine looks exactly like the fj motors I googled and it did come out of a crashed fj 1200. At this stage I know so little about motorbikes I can easily make you believe its not an fj  
Thanks for the replies.

[yosemite]

 
two points after you swapped coils was it running on two or four cylinders, by the way I assume that you've had it running ok
I am unsure of a couple of things from your description if you swapped the connection plug and plug leads ok but if you swapped only the small connector  to the harness then it should not have run.  if it did then the original setup was wrong the two outside plug leads are connected to one  oil and the two inside to the other
if this the way things are then 1st check the earth connections ( grounds) if these are ok then it sounds as though it has damaged both coils, from your description of what happened I suspect that a fault somewhere has possibly fried the inner coil then  when you swapped coil  connectors the fault has fried the second coil
I may be wrong but its time to get the multi-meter out to check coil resistance+ voltage  etc
two points after you swapped coils was it running on two or four cylinders, by the way I assume that you've had it running ok

[Fj1200buggy]

Hi, it was running perfectly, on all 4 cylinders, it stalled and I couldn't get it started again. I tested the spark and only the outer coil worked, I swapped the wires of the 2 coils to test if the coil was the problem and with that setup the outer coils didnt fire but the inner did-I did not try to run it like this obviously-I tried it again after putting everything back to normal and the outer worked but not the inner, now nothing works.
Thanks for the reply, I hope everything is clearer now.

[Arnie]

If the wires you swapped were the input to the coils and not the HT spark plug leads, then what you've discovered is that either one of the wires to the coil that is not sparking is broken, or that the igniter is bad.  With the ignition ON, the R-W wires should each have a nominal 12+V on it.

Hope that helps,

Arnie

[Fj1200buggy]

Thanks, I will try tomorrow- it was the coil input wires, but why does nothing spark now?

[Fj1200buggy]

I finally got the dyna system and the thing finally runs. I am not sure if my generator is working properly, is there a way to test it and can it damage my dyna system? Also the engine doesnt want to idle, I didnt change any carb settings and when the stock system worked it idled fine....What advance/retard settings work the best?
Thanks, Erik.

[Pat Conlon]

Re: charging: with the engine stopped, check the battery resting voltage...now with the engine running at ~2k rpm check the voltage...should be 14.2-14.7 volts.
Tell us what you find...

Going by memory, there are 5 different settings (ignition advance maps) on the Dyna 2000.
Folks have used setting #3 on their FJs.

[Fj1200buggy]

Thanks, When I start it and rev it a bit with the alternator plugged in, the main fuse just blows.

[Fj1200buggy]

It also backfires, is that because I didnt set the pickup coil angles correctly or is that an advance curve setting?
Thanks for the help.

[Pat Conlon]

Could be....what setting are you on?

Fix the ground fault (or short) on the alternator first. You can damage your electronics.

As else fails, revert back to the stock TCI and see if the problem persists.