Check the temp sensor in the manifold. See what reading you are getting when it cuts out.
It could be a dodgy earth, that the fan uses, causing the engine to stall, but thats a long shot.
The crank sensor could also be failing. Do you get a spark when cranking?
Cheers
SPD[/quote
i dont have multimeter so i cant do this.
butt their is a good spark when cranking the engine .
cheers
daz
OK, check the routeing of your breather pipe.
Cheers
SPD