had a look at the electrics when i got home this pm,,kill switch is ok as is the starter/ignition switch and i seem to have feeds where i need them from ignition and fusebox..what i did find was corrosion to the terminals on the ic ignitor and when cleaned there was a clicking/buzzing from the fusebox..the engine now turns over but wont start,(buzzing continues when cranking)battery is starting to go flat so will need to recharge before trying again,fuel supply ok and new plugs/air filter,think there is still an electrical problem somewhere(was running fine last week!!)further diagnosis required..btw,weather conditions didnt seem to be relevant..thanks..