Thankyou for the info & links gentlemen.
Engine appears to be '79 390 CR according to prefix .
Frame yet to be determined
A yamaha man workin on a Husky
.....must be lust
....I got a hankering for a twin shock Euro Wayne , so might be a Husky ??
Sold the XR 500 so some space in the shed now
Busy with mates' Husky repair for now , but still on the lookout for something to replace the XR.