Remove the fuel tank (page 5-50).
Remove the front and rear ignition coils (page 17-5).
Remove the bolts and PAIR check reed valve cover.
Remove the PAIR check reed valve.
Installation is in the reverse order of removal.
Check the reed valve for damage or fatigue.
Replace if necessary.
Replace the reed valve if the seat rubber is cracked, deteriorated or damaged, or if there is clearance between the reed and seat.