Finally the longwinded saga of my SRX400 is ended. Swopped the alternator and Hey Presto! full output is achieved. Can at last wang-it along at 70mph.
SteveH I'll need to sort out with you about a repalcement for the alternator, but the coil was a straight swop and made no difference so you can have that one (HT lead is longer). I think BeeMan has now become the suppository, sorry repository, of all things SRX400, so he may be able to help out with a replacement. I could of course have the buff one re-wound, and then you know its working, but that might be expensive. Will investigate. Thanks for 'loaning' the parts as it would have been a complete pain to have bought vaious replacements not knowing which one was the duffer!!
BB