Ok I rebuilt the bottom end after it shattered a bearing. Motor seems to be turning over fine. When i reinstalled motor it would not start, thought it was electrical so i replaced coils and battery Still would not start. So I took it to a hill and tried to bump start it.
The bike was very hard to push when it was in gear with clutch pulled right in and even though the motor turns over by hand it was virtualy impossible to bump.
When i did get it moving it was trying to fire, but the motor almost feels seized which has got me scratching my head again, anybody got any ideas?