Had a very nasty experience with the bike recently made worse because I'd caused it! Some time ago there was post about inline non return valves in the oil lines which saw the experienced guys more or less saying don't use them. Well I'd forgotten that I'd fitted one of these things and due to other household commitments ie "she who must be obeyed" I've not been using the bike much this year and finally got round to a day when I had a spare hour ,time for play!! or so I thought.
The old girls an easy starter ( bike that is , I could almost hear the keyboards being bashed in Oz ) and as usual 2nd kick she was burbling away happy days ,until i checked the oil return to the tank then PANIC , let her run for a min still nothing .I cleaned the presure release valve and reset the ball ,no change ,checked the pump everything clean and tight and turning over and after putting the cover back turned my attention to the oil lines which it turned out should have been first!!! I saw the non return valve whizzed it off and the oil line poured out the clean engine oil once tied up to stop the flow so I put the valve in the vice and couldn't move the ball stuck solid .I prised out the circlip non to gently, and removed ball and spring with some effort and got a clear run view through it and has I had misfiled (lost) the original I had to use the "ex" non return has a connector duly reconnected the line I checked the
other line for any foreign bodies( no offence intended overseas members ) and has all was well put it together and started her up again , lovely sounds as usual and the return feed was trying to get through the tank side ,result!! I've learnt a very important thing which is that that if in a discussion on this forum something is highlighted as a potential problem take note and do something about it ,don't has I did, just take it for granted that it would keep working and be okay and don't use nonreturn valves , anyway Thats why I'm reasonably happy to return last night to a small puddle of oil under the old girl, happy days best wishes BobH