Thanks Guys...
You are right about the crunchy bits in the tranny, when I did the first change there was and assortment of bits and pieces in the oil. I have changed the trans oil twice since (total milage covered so far is 2000 miles/3200klm) and it has been clean.
What have done resently is to add some molybond (Molybdenum Disulphide) to both the engine and trans oils and what a difference that made to the running of the bike...
Before adding the moly I spoke with a long time friend of mine who was a marine engineer in the Royal Australian Navy and later worked on heavy transport and farm machines what his thoughts were about Moly as an oil additive. He said that seeing the enfield has a bush rather then a roller bearing big-end it should be fine however do not use too much as it has been know to cause roller bearing to skid rather then roll.
I used the following dosages: 30ml Engine, 15 ml transmission. The engine spins up beautifuuly and the trans changes really well.
DO NOT USE IT IN THE PRIMARY DRIVE!!!
Roger