do i have a bad coil?...

[orangem2]

hello,
i have a 1995 speed triple. i love the bike but i have one nagging problem and i seem to be at a loss.
the bike stalls every once in a while at idle...
it runs fine as long as i am giving it a little throttle.
i was stuck in traffic the last time and after a small time it seemed the idle was getting a bit erratic, then it just stalled.
i re-started the bike, revved it a few times and all seemed well. i have checked the carbs 3 times, i have changed the fuel lines and cleaned the filter. this i starting to sound a lot like the dreaded coil problem. just looking under the tank i cannot tell what coils i have but the plug wires are PVL. can anybody shed some light on this?
thanx for the help.

[Limey]

Plugs.

[bikeman]

When was the last time to checked the valve clearance? You could have one that's a tad tight and not fully closing which would be most noticable at idle. Oh yeah I agree with Limey, new plugs will never hurt.

What do you mean when you say you checked your carbs? You checked float height, carb boot cracks, sync, pilot jets?

Mike

[crashmasterd]

The coils on these early (T300) Triumphs did have a tendency to start leaking spark. There's an easy check for this: Fire up the bike in the dark and look up under the tank. Look for sparks and arcing. It will be particularly bad if the bike is at all wet. Also, listen for a sharp "snapping" sound.

This doesn't necessarily show a bad coil, but it's a place to start.

A couple of people I know with this problem have solved it by coating the coils in that rubber "Tool Handle Dip" product. It's available at most home improvement stores that carry tools. Just paint it on in three or five coats. It worked for me!

Coils for these are stupidly expensive, so it's worth it to try a few cheap fixes first. The coils are small boxes of plastic bolted to the frame, one for each cylinder.

I would change plugs as well, to rule this out. These bikes run well with a slightly hotter plug. Use NGK DPR8EA

Is it time for a valve adjust? This could cause your problem.

Also, are you sure your idle mixture is set correctly? It should be 2.5 turns out from lightly seated. If the caps are still over the screws you will need to drill and remove them. From the factory the mixture can be as far as 1 turn off!