Kawasaki STX-15F Periodic Maintenance Procedures Engine Top End, Air Suction Valve Inspection

PERIODIC MAINTENANCE 2-15

Periodic Maintenance Procedures

Engine Top End

Air Suction Valve Inspection

•Removeter). the air suction valve (see Engine Top End chap-

•Visually inspect the reeds [A] for cracks, folds, warps, heat damage, or other damage.

If there is any doubt as to the condition of the reed, replace the air suction valve as an assembly.

•Check the reed contact areas [B] of the valve holder for grooves, scratches, any signs of separation from the holder, or heat damage.

If there is any doubt as to the condition of the reed contact areas, replace the air suction valve as an assembly.

If any carbon or other foreign particles have accumulated between the reed and the reed contact area, wash the valve assembly with a high-flash point solvent.

CAUTION

Do not scrape off the deposits with a scraper as this could damage the rubber, requiring replacement of the suction valve assembly.

Valve Clearance Inspection

NOTE

○Valve clearance must be checked and adjusted when the engine is cold (at room temperature).

•Remove:

Seat (see Hull/Engine Hood chapter)

Cylinder Head Cover (see Engine Top End chapter)

•Position the crankshaft at #1, #4 piston TDC as follows.

○Using the shaft wrench [A], turn the crankshaft counter- clockwise [B] and set the crankshaft at #1, 4 piston TDC.

Special Tool - Shaft Wrench: 57001-1551

○The timing marks [A] must be aligned with the cylinder head upper surface [B] as shown.