Quote:
Originally Posted by Bibio
how many services has it had?
i would start with a new set of plugs m8. i very much doubt that its the coils.
if the bike has been sitting about check the connectors that are open to the elements then the ones that are not.
how fresh is the battery?
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No service since the '1000 mile' service, the George White's I bought it from went tit's up a couple of years ago and although everything has aged whilst stored in the shed, never saw the point in servicing it if it hasn't gone anywhere.
My brother is an MOT tester and the old man has been on bike since long before I was born hence having a bit of mechanical knowledge.....
Haynes says 'faulty power supply for the ignition system' as a possible cause for C25 so digging under the airbox and disconnecting/applying vasoline/reconnecting all the connectors whilst under there is on the to-do list whilst swapping the plugs and coils to see if the fault changes cylinders...
Suppose putting the 'good' iridium plug into the rear cylinder and seeing if that cures it is an easy option and would answer the possible plugs thoughts....
Battery is good, been cycling on the Optimate and never spun slow although I must admit I've noticed the headlight are almost completely out when firing it into life (sparks into life just like the first day I bought it, just now it's on one cylinder)....
Thanks Bibio!