Ungarisch
Husqvarna
AA Class
I did an oil change this weekend on my 630 and while looking up the torque specs on the filter covers I noticed that both the service manual and the online parts microfiche for the 630 show the sprocket side filter being installed backwards as compared to how I had it and have been installing it since the bike was new.
I did a bit further digging but I did not see anyone raise this issue on the forums. I then looked up the service manual for the older 610 and that one showed it being installed the correct way, the way I had it with the oil passage channel facing inwards.
TBH, I'm not even sure if it can be installed backwards, maybe it can, and if so that can cause some serious oil passage issues.
This is how the 630 manual shows it being installed:

and this is how the 610 manual shows it being installed

I did a bit further digging but I did not see anyone raise this issue on the forums. I then looked up the service manual for the older 610 and that one showed it being installed the correct way, the way I had it with the oil passage channel facing inwards.
TBH, I'm not even sure if it can be installed backwards, maybe it can, and if so that can cause some serious oil passage issues.
This is how the 630 manual shows it being installed:

and this is how the 610 manual shows it being installed
