Triumphrat

Chilly · 09-24-2009, 01:41 AM

Seeking wisdom and experience of the membership. While accelerating to enter freeway the bike reached 6k and then felt as if it hit a rev limiter in that there was a dramatic loss of power. Once below 6k she ran like always. I thought at the time that perhaps she was dealing with a clogged fuel line or something of that nature and continued on with my errands. Making the run home I wound her up and there it was again. 6k and loss of power, drop down to 5k and normal running. Two days later again entering the freeway I purposely kept the rpms under 6k. Once on the freeway moving around 80mph and a little over 5k (I think) indicated on the tach she completely lost power. Dead and rolling to a stop on the side of the freeway. Sat there for a few minutes thinking about who I was going to call and decided to try to restart the engine. It lit the first try but on two of the three cylinders. Below is what has been done so far to fix the problem.
New wires, plugs, coils, fuel filters and fuel lines. Still no joy. My dealer, whom I trust, can't figure out why she continues to run on two. He has a call into Triumph to help with the diagnostics though he fears, as do I, that it may be the igniter.
What is the general consensus out there? What else do you suggest we check? Are igniters really that expensive ($739 usd)? Thanks Rick

triple_ratrider · 09-24-2009, 02:15 AM

Just happened to catch that you're in Bellingham and thought I would chime in as part of the home team.

Recent similar issues with toller's Legend 900 on the forum proved to be the ignitor and it really does cost that much new. See thread here http://www.triumphrat.net/hinckley-c...aced-coil.html

My personal experience (99 TBS) with engine totally cutting out when it got to full operating temp was the crank sensor under the small right-side engine cover. Testing was pretty easy. Run the bike til it quits and check for continuity at the connector for the sensor (directly under the airbox).

However, when that little guy goes, there is no signal at all and everything drops out - all cylinders and tach. Good news for me was that Howard at Champion was able to order one for me pretty quickly and didn't charge any more than BikeBandit - less, really, since there was no shipping.

Persistent miss of the same cylinder even after replacing everything that would otherwise make spark does at least point a finger at the ignitor.

I presume that you've already tested to confirm that there is truly no spark on one cylinder and always the same one?

One other thing to try is simply un-plugging the connectors from the ignitor, check for cleanliness and re-install to make sure they are fully seated.

Then try wiggling wires while the bike is running to see if you can make the engine miss, rev, or otherwise alter behavior in a way that indicates loose wire(s).

Toller ended up buying big for the new unit and fixed his problem. You might get lucky and find that it's just a connection.

regards,

Ben