Suzuki GSX-R 1000 Service Manual: Valve seat repair

Suzuki GSX-R 1000 Service Manual / Engine / Engine mechanical / Repair instructions / Valve seat repair

The valve seats (1) for both the intake and exhaust valves are machined to three different angles. The seat contact surface is cut at 45°.

Suzuki GSX-R. Valve seat repair

Intake valve
Exhaust valve

Suzuki GSX-R. Valve seat repair

Caution

the valve seat contact area must be inspected after each cut.
Do not use lapping compound after the final cut is made. The finished valve seat should have a velvety smooth finish but not a highly polished or shiny finish. This will provide a soft surface for the final seating of the valve which will occur during the first few seconds of engine operation.
The titanium valves are coated with an oxidized membrane treatment to resist wear but the membrane tend to removed if lapped after valve seat servicing.

Note

after servicing the valve seats, be sure to check the valve clearance after the cylinder head has been reinstalled. Refer to “valve clearance inspection and adjustment” in section 0b .

Valve guide replacement

Remove the cylinder head. Refer to “engine top side disassembly” . Remove the valves. Refer to “cylinder head disassembly and assembly” . Using the valve guide remover, drive the va ...

Engine bottom side disassembly

Note the crankcase must be separated to service the crankshaft and conrod. Remove the engine assembly from the frame. Refer to “engine assembly removal” . Remove the e ...

Other materials:

Rear brake master cylinder disassembly and assembly
Refer to “rear brake master cylinder assembly removal and installation” . Disassembly Disconnect the reservoir hose (1). Remove the lock-nut (2). Remove the brake hose connector (3) and o-ring (4). Special tool : 09900–06108 (snap ring remover (close type)) Pu ...

Crankshaft journal bearing inspection and selection
Refer to “engine bottom side disassembly” (page 1d- 49). Refer to “engine bottom side assembly” . Inspection Inspect each upper and lower crankcase bearing for any damage. Set the crankshaft onto the upper crank case. Install the plastigauge onto each crankshaft jour ...

Break-in
The first 800 km (500 miles) is the most important in the life of your motorcycle. Proper operation during this break-in period will help assure maximum life and performance from your new motorcycle. The following guidelines explain proper break-in procedures. Maximum engine speed recommen ...