Need help with my xj1100 please!!!

[mustang347gt]

Well to start with.My bike was running fine.Someone replaced the alt thing at one time and had the wires taped the shorted.First my tach quit working and all my led lights stayed on and still ran.It would not charge.Now after I got it home and got the wires correctly fixed with heat shrinks and all.I lost spark to one of my coils i found it to be bad and replaced the one.I also replace the voltage reg.I also believe my cdi box was bad I just ordered a used one that finally came in and now I no spark to either coil.With my old cdi box I had spark to one coil.Now I have none.Could the CDI box be bad?How can I check I really need help.Please email me directly at mustang347gt@hotmail.com I need this thing going summer is leaving fast.Could the pick up coils went bad too how do I check them?

[TopCatGr58]

Hey Mustang,

Sorry to hear about your XJ being down. Many folks here are willing to try to help you with troubleshooting tips. However, this is a public forum, and we all learn from the public discussion about your bike's problems. Also, being able to post and read previous suggestions, as well as t-shooting processes you've done will help narrow things down, but they can't be seen or reviewed in emails!

SO.....we will be posting to this thread with tips and ideas of what could be wrong, but we won't be sending any emails....aside from this one.

Hope you'll come back to the FORUM for your answers?
T.C.

cc: to email.

[TopCatGr58]

TCI diagnostics.

Mustang,

This Thread will take you to the LINKs section, TCI repairs, Randy one of our electrical GURUs created a web page with some great TCI diagnostic techniques.

BTW, our ignition boxes are TCI's, Transistor Controlled Ignitions, not Capacitance Discharge Ignitions. But, yes, you could have gotten a bad used TCI?

The XJ has a much more complicated TCI with modules to control the centrifugal and vacuum advance curves. The Pickup coils on the crank and their wires don't rotate, so they are "LESS" likely to go bad, but they can still go bad! Randy's page explains how to eliminate the PU coils vs. the TCI.
Good Luck!
T.C.

[trbig]

I never had a problem with spark, but when my stator was bad on my XJ recently, I had all my gauges EXCEPT the tach, like you described.
You might also go to this thread where Geezer explains how to check things and the readings you should get. This is for the XJ.
LINK
I had no idea, but there is a correct way (And unfortunately, I found out the wrong way) to correctly install the rotor. I was merely puting it on the shaft and torquing the bolt. I had assumed I bent my rotor taking it off because it would rub and kill my stators (Yes that's plural!)
Good luck.

Tod

[turbopete]

Re: the alternator - on my XJ the resin had hardened and broken up causing the rotor windings to move about and break the copper winding wires where they are solderd to the posts. After 3 repair attempts I took the whole assembly off and fitted an XS generator. Problem solved.

Re: the TCI - I had just this problem, and I tried the solder fix including fitting new transistors. Unfortunately I didn't realise that I could damage the TCI by using a mains-powered soldering iron (240V over here in the UK) and I must have ruined it because it went from having spark on two to no spark at all, even after fitting the new transistors. If you're going to do a soldering job on it be sure to use a 12v regulated iron.
I ended up selling my bike as a non-runner, not being able to replace the TCI. I was never so sorry to see a bike go, would have paid very good money to replace that unit.