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:

Emission control warranty
Suzuki motor corporation warrants to the ultimate purchaser and each subsequent purchaser that this vehicle is designed, built, and equipped so as to conform at the time of sale with all U.S. Emission standards applicable at the time of manufacture, and that it is free from defects in materi ...

Stp sensor adjustment
Adjust the stp sensor in the following procedures: remove the air cleaner box cover. Refer to “air cleaner element removal and installation” in section 1d . Disconnect the stva lead wire coupler (1). Insert the needle pointed probes to the stp sensor coupler (between y/w a ...

Gearshift lever height inspection and adjustment
Inspect and adjust the gearshift lever height in the following procedures: inspect the gearshift lever height “a” between the lever top and footrest. Adjust the gearshift lever height if necessary. Gearshift lever height “a” standard: 65 – 75 mm (2.6 – 3.0 In) Loosen the l ...