Oil leak from filter cover
Changed oil (Motul 5100 semi-synth) on my TT600R today and mounted a KN oil filter.
O-ring on the oil filter cover was intact so I reused it. Went on a 30 min drive and when I got back i noticed that oil is seeping from the bottom of the oil filter cover, maybe the bottom screw hole.
The leak is VERY VERY minor, its not like its dripping or making a mess.
The thing is, that its only leaking when the engine/oil is hot. Nothing is visible when parked (even for hours - maybe because of the angle of the bike on side stand?) or starting up. I went for another 20 min ride and for the first 15 mins, I couldn't see any oil. It seems that it only seeps when the oil hits around 80+ degrees.
Don't know if it matters, but I used Yamalube (changed at dealer) and an OEM Yamaha filter before that.
Any ideas of the cause?
EDIT:
What I meant was that I have heard about some bikes starting "sweating" oil when changed to a different kind of brand most notably full-synth. If its "just" the o-ring I can't understand why its only when the bike is hot.
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