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:

General description
Engine coolant description Caution use a high quality ethylene glycol base anti-freeze, mixed with distilled water. Do not mix an alcohol base anti-freeze and different brands of anti-freeze. Do not put in more than 60% anti-freeze or less than 50%. (Refer ...

DTC “c12” (p0335): ckp sensor circuit malfunction.
Detected condition and possible cause Detected condition Possible cause The signal does not reach ecm for 3 sec. Or more, after receiving the starter signal. Metal particles or foreign material being stuck on the ckp sensor and rotor tip. Ckp ...

Rear brake master cylinder parts inspection
Refer to “rear brake master cylinder 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 and dust boot ...