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:

Drive mode selector inspection
Inspect the drive mode selector in the following procedures: set up the sds tool. (Refer to the sds operation manual for further details.) Turn the ignition switch on. Click “data monitor”. Make sure each of “driving mode selection” on the monitor is indicated ...

Schematic and routing diagram
Fuel tank drain hose and breather hose routing diagram Fuel tank water drain hose Fuel tank breather hose no. 1 Fuel tank breather hose no. 2 Fuel tank breather hose no. 3 3-Way joint Frame White marking Set the hose end to the root of tank nippl ...

Cam chain tension adjuster inspection
The cam chain tension adjuster is maintained to proper tension automatically. Remove the cam chain tension adjuster. Refer to “engine top side disassembly” . Holding the cam chain tension adjuster as shown in the figure, compress the plunger by turning the adjuster body unt ...