22. Separate the crankcase halves by installing two crankcase cap screws in opposite corners leaving the heads approximately 6 mm (1/4 in.) out. Using a plastic-tipped hammer, tap on each cap screw head until the case halves separate. Remove the cap screws.
)LJ
! CAUTION '2 127 GULYH DQ\ WRRO EHWZHHQ KDOYHV WR VHSDUDWH WKH FUDQNFDVH 'DPDJH WR WKH VHDOLQJ VXUIDFHV ZLOO UHVXOW $1 '
)LJ
127( 3ODFH UXEEHU EDQGV RYHU WKH FRQQHFWLQJ URGV DQG DURXQG WKH F\OLQGHU VWXGV 7KLV ZLOO SUHYHQW WKH FRQQHFWLQJ URGV IURP GDPDJLQJ WKH FUDQNFDVH
16. On the 500 cc/600 cc, remove the intake manifolds and reed block assemblies. )LJ
$1
23. Lift the bottom half of the crankcase off the top half.
! CAUTION
$1 '
17. Remove either lower union cap screw securing the lower check valve assembly; then remove the two screws, lock washers, and washers securing the oil-injection pump to the crankcase. Remove the pump, retainer, and O-ring. 18. Remove the five screws securing the water pump cover to the crankcase and remove the cover. Account for the O-ring gasket. 19. Remove the cap screw securing the water pump impeller; then slide the impeller free of the shaft.
&DUH PXVW EH WDNHQ WR QRW DOORZ WKH FRQQHFWLQJ URGV WR GURS RQWR WKH VHDOLQJ VXUIDFH RI WKH ERWWRP FDVH KDOI
24. Lift the crankshaft free from the top half of the crankcase and slide the crankshaft oil seals off the crankshaft. Account for the C-ring. Remove the bearing dowel pins. 25. Remove the oil-injection pump/water pump driveshaft from the lower crankcase half. Account for the thrust washer on the outer end of the shaft. )LJ
20. Remove the cap screws securing the PTO-end plate to the crankcase; then remove the plate. 21. Position the crankcase, with its bottom side up, on two blocks of wood. Remove the cap screws securing the crankcase halves.
$1 '