Engine miss

[sirrom]

First time out for my MM1000 for a good run this morning and everything was going fine then engine died and then came back and it did it a few more times and even backfired a couple of times and then came back fine for a while afterwards. So when this started to happen I turned for home and made it back not before it cut out and restarted.
I have driven it locally just around my local neighbourhood but today was on the open road. It sort of coughed a few times and then picks up again.
Have had the plugs out and they are really clean.
One thing I was wondering about would old fuel cause this sort of problem. I did fill it up with the older fuel in there. So its got some old and new fuel in it.

The more I think about it has to be an ignition problem as if was fuel it would be a continuous problem

Anybody got any ideas?

[Trickydicky]

I think it could be ignition related. Check if the points are pitted which would suggest the condenser is faulty.
Just replace one part at a time to try and find the fault

[beero]

Open the bonnet in the dark while the engine is running and see if you can see any stray sparking around the coil, dizzy, leads or plugs.

[sirrom]

Changed the condenser this morning and took car for a run over open road and some of it up a slight incline so had load on. Seemed to behave OK but will have to do a longer run to check on it and be sure.
The condenser I removed wasn't that old or done many miles.

[oliver90owner]

Condensers don't 'wear out'. They just fail. Usually after a long period of time, but much shorter periods these days if inferior, cheap imported ones are fitted.

They are simple to test. Check resistance with a meter. Should indicate an initial short circuit resistance, rising steadily to a very high value (several megaohms). Simple observation of the spark will sort out the good from the bad. A good strong blue spark invariably means the condenser is good; a yellowish spark could mean a faulty condenser (but there may be other reasons, too).

Your fault was more than likely a loose or corroded electrical connection if ignition related, but could equally be a fuel problem as well or instead.

[Trickydicky]

The quality of the well known brand of ignition parts is questionable to say the least. I would only buy replacements from http://www.distributordoctor.com.