Kawasaki WORKHORSE 250 (2003) [86/322] Cylinder head warp

4-22 ENGINE TOP END

Cylinder Head

Cylinder Head Cleaning

•

Remove the cylinder head (see Cylinder Head Removal).

•

Remove the valves (see Valve Removal).

•

Wash the head with a high-flash point solvent.

•

Scrape the carbon out of the combustion chamber and

exhaust port with a suitable tool.

•

Install the valves (see Valve Installation).

Cylinder Head Warp

•

Clean the cylinder head (see Cylinder Head Cleaning).

•

Lay a straightedge across the lower surface of the cylinder

head at the positions shown.

•

Use a thickness gauge [A] to measure the space between

the straightedge [B] and the head.

Cylinder Head Warp

Service Limit: 0.05 mm (0.002 in.)

If the cylinder head is warped more than the service limit,

replace it.

If the cylinder head is warped less than the service limit,

repair the head by rubbing the lower surface on emery

paper secured to a surface plate (first No. 200, then No.

400).