Coilpack on single spark?

[Deleted account 210214001]

Good morning, all! (actually, it's early afternoon for most of you)

I was reading GS7A's thread about his coilpacks. I don't want to hijack his thread, so I'll ask my hopefully simple question here: Are the symptoms for a poor coilpack the same for a single spark machine as they are for a twin spark? I'm asking mostly out of curiosity, but also with a bit of specific interest; I've had a few instances on my machine ('01 1150GS) where, under easy to moderate acceleration, I'll get a single small "lurch" that feels like a solid miss in one of the cylinders. It literally feels like the motor shuts off for a split second and come right back like nothing happenned.

The problem hasn't been a bother and I haven't had any other poor-running; fuel economy is just fine, acceleration is smooth, running temps are fine, no discernible fluid consumptions (other than fuel, of course), just a bit of a feeling of slightly reduced power, but not sure if that's just my arse-dynomometer being a bit off.

Bohdan

 

[mpriestley]

don't think the single spark machines have coilpacks/stick coils .....

 

[cookie]

don't think the single spark machines have coilpacks/stick coils .....

you think right. they have a more traditional coil/HT lead arrangement.

 

[Colban]

What you may have is a duff plug,maybe HT lead or a problem with the Hall sensors.Could be a few things.
Any more clues?.Happened after rainstorm,just after filling up etc.I'd change plugs first-easiest job.

 

[Deleted account 210214001]

Thanks, all. The "miss" only happened three or four times, infrequently enough that I never drew any common conditions from it. Last time I checked the plugs -- about 2500 miles ago and *after* the "miss" incidents -- they looked fine. One had a gap on the larger end of the range, but still well below replacement.

I'll just keep tabs on it if it happens again. No need for any of those worry beads they're selling over on ADVrider!

 

[Colban]

ll just keep tabs on it if it happens again. No need for any of those worry beads they're selling over on ADVrider!

"Worry beads"....Ideal gift for a 1200 owner.

 

[ianboydsnr]

Good morning, all! (actually, it's early afternoon for most of you)

I was reading GS7A's thread about his coilpacks. I don't want to hijack his thread, so I'll ask my hopefully simple question here: Are the symptoms for a poor coilpack the same for a single spark machine as they are for a twin spark? I'm asking mostly out of curiosity, but also with a bit of specific interest; I've had a few instances on my machine ('01 1150GS) where, under easy to moderate acceleration, I'll get a single small "lurch" that feels like a solid miss in one of the cylinders. It literally feels like the motor shuts off for a split second and come right back like nothing happenned.

The problem hasn't been a bother and I haven't had any other poor-running; fuel economy is just fine, acceleration is smooth, running temps are fine, no discernible fluid consumptions (other than fuel, of course), just a bit of a feeling of slightly reduced power, but not sure if that's just my arse-dynomometer being a bit off.

Bohdan

That actually sounds like a worn gearbox selector, it is just like the engine shutting off for a split second, its bad news as I know you have done lots of engine work, so hopefully I am wrong