Xj1100 tci

[latexeses]

I have a friend in SOCAL who was in a "Motorcycle dismantlers yard" yesterday and a friend of his came in begging for a TCI for an XJ1100. He said it had a "dead" pin.

Do they have the same problem of loose solder joints as the XS's?

If it is something more, can they be rebuilt? If so by who?

That is all I know about the problem at this time but wanted to find out if this guy can at least hope....

Thanks,

Rodger

[3Phase]

Rodger, which pin is 'dead'? They can get the same problems as the 2H7 TCIs.

Randy might be able to fix it but I understand there's no easy way to rebuild one if it's not something simple like a bad solder joint or a switching transistor.


Regards,

Scott

[mxmikie]

is it a 2h7 ???? i think i have at least 10 of those

[oldnortonrider]

TCI for XJ starts with '10M'....., 81 models start with '4RO'...., other years'~~'2H7', ......I think....................

[TopCatGr58]

Hey Latex,

As has been stated by 3Phase, the XJ's TCI is SPECIAL, has both the cent. and vac. adv. curves built/programmed into the chips. Randy doesn't have the info or the equip to program the eproms. He can fix/repair the 2H7 series, but the 4RO which has the Cent. adv. programmed but still uses a vacuum adv. mechanism ,as well as the XJ are not fixable when the eprom or such are fried.

FYI, you can use a 4RO TCI on an XJ. It won't have quite the same smooth response during cruising, but will have the same power. I can't remember right off hand who it was that used one this way, but didn't have any problems and the fuel economy wasn't much different than with the XJ TCI.

T.C.

[latexeses]

I asked and through the chain of comms it sounds like, and pardon the description, The lower left No.1 pin. I think he said one set of coils are dead.
I have let it be known that it could be a coil problem. He seemed sure it was that particular pin that was the problem.

Sorry for the lack of clarity but I have yet to talk directly to the owner of the bike.
Thanks for the information. Hope the pin location,such as it is, means something to those who know.

Rodger

[3Phase]

Hope the pin location,such as it is, means something to those who know.

It's okay, Rodger, I think I know which pin it is but test the primary and secondary ignition circuits before messing with the TCI.

Looking at the large connector: the two left-hand pins on the XS 2H7 TCI are the Orange and Gray wires from the coils -- Gray on the top left, Orange on the bottom left. I don't know what color the XJ coils wires are.

IF the primary and secondary ignition circuits are good then the TCI is bad or the pin/solder broke loose inside.

I don't actually have a (eBay listing) XJ100 10M-82305-10-00 TCI to play with but the TCIs are mostly pin-compatible and will work -- for certain values of 'work' -- with one another. As T.C. says, the XJ has advance curves programmed into it so none of the other TCIs will work correctly.

If you're up for a quick test after checking the ignition circuit again for shorts and other faults you could try putting a known-good XS 2H7 TCI on there just to see if the XJ will fire up and run. Don't forget to test the coils and ignition wires before the TCI.

Again: Test the primary and secondary ignition circuit before messing with the TCI.

Regards,

Scott (Did I mention that you should test the primary and secondary ignition circuits before messing with the TCI?)

[latexeses]

Thanks Scott,

I can check all that stuff out bout for one problem. The bike and I are separated by about 450 miles.

I think this kid has some skills so I will pass all of this information to him and find out if he has any way to test the circuits.

I will have The 4RO in my hands in a day or so.but will just check for broken solder. If there is, and it is fixable, it will be and I will send along the checklist on the ignition circuts and the coils.

My gut tells me this guy is dealing with a coil problem but he seems to be sure it is the cdi box.

[3Phase]

Thanks Scott,

I can check all that stuff out bout for one problem. The bike and I are separated by about 450 miles.

Long distance: Reach out and break something!

I think this kid has some skills so I will pass all of this information to him and find out if he has any way to test the circuits.

I will have The 4RO in my hands in a day or so.but will just check for broken solder. If there is, and it is fixable, it will be and I will send along the checklist on the ignition circuts and the coils.

I'm lost here. He's sending you a TCI and it's a 4RO? The XJ should have a 10M.

My gut tells me this guy is dealing with a coil problem but he seems to be sure it is the cdi box.

Swap the primary and plug wires from the 1&4 and the 2&3 coils. The junction should be under the tank. If the previously 'bad' coil fires and the 'good' coil is dead then it's probably the TCI. If his hair stands up and waves he's on the right track but tell him to let go the plug wires!


Phone call time!


Regards,

Scott

[latexeses]

Scott,
My bad! He is sending the 10M. Just got done reading all of the posts and the comparisons between the two. Sorry.

"Swap the primary and plug wires from the 1&4 and the 2&3 coils. The junction should be under the tank. If the previously 'bad' coil fires and the 'good' coil is dead then it's probably the TCI."

That is the plan. That is what I told them to do. I need to get the follow-up from down south....