Ignition Coil?

[Aeschere]

Hello all,

The Tiger keeps throwing new things at me every time I would like to go for a ride...

Last week, I had some issues where the middle pipe wasn't heating up, the bike would stutter in low revs and would die when I pressed the clutch lever (and the revs dropped). This looked to be just a faulty spark plug and was quickly remedied. However, today, I was experiencing the same issue, again on the middle pipe. Thinking I might just had a bad plug, I replaced it again. The pipe heated up and off I went.

However, during the trip, I noticed that my revs kept fluctuating a bit when idling. When cruising around with 50-60 km/h, it felt as if I was on a merry-go-round. I am wearing ear-plugs when I ride but I would hear some pops coming from the exhaust and something that was vibrating more than usual.

The ride was to a motorcycle event so I talked the problem over with some people there and they almost all concluded that it might be the ignition coil (bobine) that could be the issue. Are they right? And if so, what replacement parts do you folks recommend. A few years ago it was suggested to replace them with Nology Profire coils but is this still the case? Even for people in the EU? $89 a piece, not including shipping and import is making me sad...

Thanks in advance!

[London_Phil]

I fitted over-plug coil packs (stick coils) from a 2000  TT600 on mine. Was able to use the original TT600 rubber bungs to support the stick coil and keep debris from the plug hole. Worked well, and a few people have done it. Original coils are known to fail after a while.

[Aeschere]

I saw that as well, but those are the cables that go over the spark plugs. I am currently looking at those coils that are attached to the frame as the culprit.

Can't hurt to get some new cables as well though :)

[London_Phil]

My point was the coil sticks are a better option, as you remove both the coil, a known issue, and the cables are not needed either, so if you are thinking of long term use, I see the coil sticks as an improvement.

[Aeschere]

How does that work? You connect them straight to the battery without guiding them through the ignition coil?

Is the ignition coil part of the TT600 coil cables?

Bit new to the whole electronic side of the bike and just trying to wrap my head around it. Thanks in advance!

[London_Phil]

They replace the ignition coil and cable. You try to get some with the connector still attached, then remove the old coils, and connect them to the coil wires.

This may help
https://www.triumphrat.net/threads/tt600-coils-on-tbs.505458/page-13

[Beernard]

TT600 coils on my Tiger. They also give you a bit more room to play under the tank. I agree with Phil.
All the best.

[Aeschere]

Hello,

It has been a while since I was last active or have ridden my Tiger. I still need to get around to replacing the coils. It seems that the Honda CBR600RR has the same coils, and those are cheaper, and easier to find than the Triumph 600TT coils.

However, I am confused about how to connect the stick coils. They have different connectors than the current coils and I don't have enough electrical experience to go on by intuition.
Does anyone have some pictures of how to perform such an exchange?

Thanks in advance!

[London_Phil]

Good to hear from you. Hope all is well.
I  got the connectors from an old loom,when I did mine, and spliced them to the original wiring. I think they are fairly standard connectors

[Aeschere]

Hello Phil,

Everything is alright on the personal side. Haven't ridden in ages though. The weather is getting worse, so a perfect time to see if she will ride again. Guess I will have to clean the carb bowls first, add some fuel improver, perhaps change the spark plugs to iridium ones and see how she fires up. It might be a bit hopeful but who know, perhaps the coils are still working fine. (who am I kidding?)

I am eying a Scrambler 900 or a Bonneville T120 though. But that is something for the future.

[London_Phil]

I'm also looking at an older Bonnie or a Speadmaster 865 to compliment my 800xc.
Moving near the South coast, and need a classic style bike for local trips, and the 800xc is a biy much for that. I miss my Steamer, but I do not miss carbs....

[Beernard]

Gday Aeschere,

Bummer when one pot won't light up.

Perhaps you could switch coils (tank off but not that hard). Then you will truly know that it is a coil problem. I tend, now, to try to eliminate possibilities and my own theories.

Remember, if its a bad coil, you only have to replace one. If the others are working, well, Yippee!

As an old bastard, I think that any bike with carbs needs to be started regularly. They hate sitting.

Also, I believe everything that Phil says will be really useful. Follow his advice.

Regards, Bern.