just got bike back from a shop that fitted fat boy bars onto my fat bob coz was a bit of ginning around ,new clutch cable wireing and brakeline extended ,so I said 2 fella don't fill up resivoir with brake fluid and don't tighten screws right down on cap yep no all about it ok jus had 2 mention as last fella did and even locktited cap on makein sure cap don't come off,like you know Harleys nuts an bolts all come loose he thinks ,so hope this is not repeat im thinkin 2 myself .go pick up bike yep bars on brake line extended to lever leave bottom lines on man that does hydraulic lines comes removes line then they braze on fitting then u can bolt line 2 this without replacein all lines clutch cable done all electrics work so goes home.looking at master cylinder cap rubber seal looks buckled ,ive gone fuk it check how tite screws are way overtightened so loosen them then I thought may as well check fluid level ,so off with cap fuk me ya couldn't fit anymore fluid in so got big syringe an cup an sucked out till wat ive had fluid level at before replaced cap screws in till firm then maybe 1/2 turn more maybe less I look at rubber seal an see if changein shape bulgeing out if so to far but anyway im no mechanic but have learnt how 2 stop weeping and brakes still working fine ,actually seem better since ive extracked excess fluid don't depress lever in without cap on though if your being curious an wondering is there enough fluid in master cylinder if you ever do this ,may cause fluid 2 squirt straight up into air an go all over the place ,maybe even air bubble wen piston sucks bak can get into line this ive discovered over yrs of fukin with brakes ,so hence again ive paid persons to do job and got 70% rite in task they musta thought fukhead wats he on about wen I mentioned brake problems with dynas resivoir leaking o well it pays 2 check ya bike an know some of the quirkiness of it ,I was gunna go bak an tell im but wats da use just go strate over there heads and didn't put clutch cable were it should go ,I mean every thing worked just not write and could ave been done better and I paid good money for this ah well not the end of the world is it