Quote:

There seems to be a larger number of CDI failure with the 270s according to my very scientific seat of the pants guess. I am wondering if more heat is generated in a different configuration.



Yep, you really have to search to find a 360° that's blown. That's what makes the Scram a perfect control element, their ignitors are located under the seat over the rear fender keeping them away from the high voltage output of the coils and the heat of the engine. Sigh, I guess we'll never know.

Here's what I do know. My ignitor failed. I was changing a rear tire and when I started the bike up after sitting for a few days it only ran on the right cylinder. After a day of shade tree diagnostics I ordered a replacement ignitor from Pinwall Cycles wrecking yard. Voila, instant fix. Too bad I reset the sensor gap while I was waiting on UPS; bad repair procedure not to track one element at a time.

Then, just to insure the ignitor was blown and it wasn't the sensor gap (there's a service bulletin on that) I put the old one back in and the bike fired right up, no problems. Now I didn't know which repair was the cure. Somewhat distrustful of instant miracle cures I put the Pinwall salvage unit back in and kept the original as a back-up.

Fast forward a few thousand miles: Triumph Twin Power is remapping ignitors. Gleefully I send my "spare" unit overseas for remapping and ask the tech to check the original maps for corruption of the data (because that's what I'm thinking happened from a high voltage spike). I get the unit back, remapped and the tech writes that the original data was fine.

In goes the hot-rod unit...and...wait for it...no fire on the left side. So it's not the map data, most likely a mechanical failure and that just has to be heat or high voltage damage to the output section.

Now I just wonder if a Pro-Com can be remapped to fire a 270° bike?
I'd sure feel a lot more confident about longer trips with a spare.

A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)