cuts out ?
 

hi all, was out riding and on a long straight lane, going along nicely then she suddenly cut out for a split second then fired back up..i think its the third time that its done this over a few months..any ideas ?

Hey!

Only thing I can think of right now is fuel supply problem.

When you are "going along nicely on a long straight lane" some crap in your gas tank / petcock / filter / carb settles down and clogs something.

Maybe I'll think of something else, but... If it would be electric problem, engine would die and not fire up again, I think. The same with mechanical problems. Or it would repeat more often than you have said...

So I think first of all you should check out your fuel supply system.

Cheers and good luck! Keep us posted.
Tadas.

thanks ...i,ll try and sort it in the next few days...punchy
:freezing:

Does it "just" cut out, or do you loose all electronics aswell (lights and so on)

Mine did the last thing from....time to time, a new ignition switch took care of it.

First of all, what bike are we talking about?

I've had the same thing as Jens describes, and it was a faulty ign switch for me as well. If it's just the engine that cuts out, I'd be looking at the supply of sparks. In my experience, quick cutting out and in again is usually electrical. Fuel supply problems usually start with a misfire or a feeling that the engine 'isn't right' and go from there downwards. If it just cuts quickly and then carries on, I would suspect the spark. Plug cap and HT lead, coil and then ECU, in that order, if it's a modern bike. Points, plug cap/HT lead, coil if older.

If everything cuts out, not just the engine, then you should be looking for a bad connection in the main wiring loom, starting with the battery connections, through the ign switch and so on.

[Edit:] Also, engine cold or hot? Fuel tank full or nearly empty? Just filled it up? Wet or dry weather? How long has the engine been running before the problem happens? Is there any kind of pattern?