Unless, of course, you're working on a Yamaha RD or DT or TZ where the Yamaha service manual (that got copied to Haynes manual) clearly shows the two lip main seal, mounted bass ackwardThere is only one failsafe rule that always works for seals - follow the service manual.
If you don’t have one, the next best option is to reference the old seal by photographing as you remove it.
You got me there! Ouch.Unless, of course, you're working on a Yamaha RD or DT or TZ where the Yamaha service manual (that got copied to Haynes manual) clearly shows the two lip main seal, mounted bass ackward
As always a definitive answer. Thanks.Writing faces OUT
Except when they were installed backwards from the Aprilia factory...There is only one failsafe rule that always works for seals - follow the service manual.
If you don’t have one, the next best option is to reference the old seal by photographing as you remove it.