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 pedal removal and installation
Removal Remove the master cylinder assembly. Refer to “rear brake master cylinder assembly removal and installation” . Disconnect the rear brake light switch lead wire coupler. Refer to “rear brake light switch inspection” . Remove the rear brake pedal as shown in the rear ...

Carrying a passenger
Before you invite someone to be a passenger on your motorcycle, you need to be thoroughly familiar with motorcycle operation. Adjust tire pressures and suspension according to the tire pressure and loading section and the suspension section of this manual. The passenger should always hold ...

Front brake master cylinder parts inspection
Refer to “front brake master cylinder / brake lever disassembly and assembly” . Master cylinder Inspect the master cylinder bore for any scratches or other damage Piston / rubber parts Inspect the piston surface for any scratches or other damage. Inspect the primary cup, secondary cup ...