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:

Tp sensor adjustment
Inspect the tp sensor setting position and adjust it if necessary in the following procedures: connect the special tool (mode select switch) to the dealer mode coupler. Refer to “self-diagnostic procedures” in section 1a . Special tool : 09930–82720 (mode selection switch) Warn ...

Pair system inspection
Pair hose Lift and support the fuel tank with the prop stay. Refer to “fuel tank removal and installation” in section 1g . Remove the air cleaner box. Refer to “air cleaner box removal and installation” in section 1d . Inspect the pair hoses for wear or damage. If it is worn or da ...

Pair system hose routing diagram
Pair control solenoid valve Pair reed valve White marking (hidden side) Yellow marking Blue marking Red marking Face the clamp end to the top. Make sure the clamp is not contacted to the frame or air cleaner box. 90° 45° 15° ...