Oil pressure relief valve removal/installation
Split the crankcase (see Crankcase splitting in the Crankshaft/Transmission chapter).
Remove the relief valve [A] from the right crankcase.
![](https://motoinstruction.ru/img/kawasaki/13/119059.jpg)
Apply a non-permanent locking agent to the threads of the relief valve, and tighten it.
- Torque - Oil Pressure Relief Valve: 15 N·m (1.5 kgf·m, 11 ft·lb)
Oil pressure relief valve inspection
Check to see if the steel ball [A] inside the valve slides smoothly when pushing it in with a wooden or other soft rod, and see if it comes back to its seat by valve spring pressure [B].
![](https://motoinstruction.ru/img/kawasaki/13/119060.jpg)
Note. Inspect the valve in its assembled state. Disassembly and assembly may change the valve performance.
★ If any rough spots are found during above inspection, wash the valve clean with a high-flash point solvent and blow out any foreign particles that may be in the valve with compressed air.
Warning! Clean the parts in a well-ventilated area, and take care that there are no sparks or flame anywhere near the working area. Because of the danger of highly flammable liquids, do not use gasoline or low-flash point solvents.
★ If cleaning does not solve the problem, replace the relief valve as an assembly. The relief valve is precision made with no allowance for replacement of individual parts.