3-12
MAINTENANCE
HRX217HYA • HRX217HZA
14. VALVE CLEARANCE
Note
Valve clearance inspection and adjustment must be performed
with the engine cold.
CHECK
1. Disconnect the spark plug cap.
2. Remove the fan cover (
3. Remove the head cover bolts, and the head cover.
Note
The cylinder head cover is made of very thin metal and
becomes bent or damaged during removal. If the head cover is
removed, replace it with a new one to prevent oil leaks.
4. Set the engine to top dead center (TDC) of the compression
stroke (both valves fully closed). Rotate the flywheel clockwise
until the magnet inside the flywheel faces the direction of the
cylinder head. This will position the engine at TDC of either the
compression or exhaust stroke. Rotate 360 degrees if
necessary. If it is hard to rotate the flywheel, remove the spark
plug.
5. Insert a feeler gauge between the valve adjusting screw and
valve stem to measure the valve clearance.
If adjustment is necessary, proceed as follows.
ADJUSTMENT
1. Hold the valve adjusting screw using the special tool (3 mm
wrench) and loosen the valve adjusting screw lock nut.
2. Turn the adjusting screw to obtain the specified clearance.
3. Hold the valve adjusting screw and retighten the valve adjusting
screw lock nut to the specified torque.
4. Recheck the valve clearance, and if necessary, readjust the
clearance.
5. Apply Hondabond HT or equivalent to the cylinder head cover
installation surface (
Installation is in the reverse order of removal.
VALVE CLEARANCE:
IN: 0.10 ± 0.02 mm
EX: 0.10 ± 0.02 mm
TOOL:
Valve adjusting wrench, 3 mm 07908-KE90200
TORQUE:
Valve adjusting screw lock nut: 8 N•m (5.9 ft-lb)
TORQUE:
Cylinder head cover bolt: 12 N•m (9 ft-lb)
HEAD
COVER
BOLT (4)
HEAD
COVER
FLYWHEEL
To increase valve clearance, screw out.
To decrease valve clearance, screw in.
FEELER
GAUGE
VALVE
ADJUSTING
SCREW
VALVE
STEM
VALVE
STEM
LOCK NUT
VALVE
ADJUSTING
WRENCH
Содержание HRX217K6HYA
Страница 3: ...ii NOTES ...
Страница 4: ...1 1 1 SPECIFICATIONS 1 SPECIFICATIONS 1 2 3 WIRING DIAGRAM HZA TYPE 1 4 2 DIMENSIONAL DRAWINGS 1 3 ...
Страница 35: ...2 28 SERVICE INFORMATION HRX217HYA HRX217HZA NOTES ...
Страница 53: ...3 18 MAINTENANCE HRX217HYA HRX217HZA NOTES ...
Страница 54: ...4 1 4 ROTO STOP DRIVE BELT 1 ROTO STOP 4 2 2 DRIVE BELT 4 10 ...
Страница 66: ...6 1 6 MUFFLER 1 REMOVAL INSTALLATION 6 2 6 ...
Страница 75: ...7 8 RECOIL STARTER HRX217HYA HRX217HZA NOTES ...
Страница 91: ...8 16 FUEL SYSTEM HRX217HYA HRX217HZA NOTES ...
Страница 131: ...10 26 CAM PULLEY CRANKSHAFT PISTON CYLINDER HRX217HYA HRX217HZA NOTES ...
Страница 149: ...12 10 VARIABLE MOWING SYSTEM MOWER DECK WHEELS HRX217HYA HRX217HZA NOTES ...
Страница 150: ...13 1 13 TRANSMISSION 1 REMOVAL 13 2 2 INSTALLATION 13 4 ...
Страница 167: ...14 12 OPERATION HRX217HYA HRX217HZA NOTES ...
Страница 169: ...HRX217HYA HRX217HZA V Valve Clearance Adjustment 3 12 Valve Clearance Check Adjustment 3 12 Versamow System 14 1 ...