Valve Seat
WARNING: This page is about a different car, the 2003 Suzuki Grand Vitara and 2002 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
Inspect valve seats for damage, pitting or incorrect seat contact width. If valve seat rework is necessary, use seat cutters to obtain required seat angles. On exhaust valves, first cut should be 15 degrees. Second cut should be 45 degrees. On intake valves, first cut should be 15 degrees. Second cut should be 60 degrees. Third cut should be 45 degrees. After cutting valve seats to correct angles, lap valve seat.