Fit the arm, washer and spring onto

The bolt, locating the spring end in the

Cutout in the arm (arrowed), and install the

Assembly

A Check the spring ends are

Correctly positioned and the washer is on

The shaft

B Gearchange mechanism correctly installed

2«38 Engine, clutch and transmission

Unscrew the bolts (arrowed) and remove the plate

components can also remain in situ unless the selector drum and forks are being removed.

Separation

1 To access the pistons (L, N and R models only), connecting rods, crankshaft, bearings. transmission shafts and the selector drum and forks, the crankcase must be split into two parts.

2 To enable the crankcases to be separated,
the engine must be removed from the frame
(see Section 5). Before the crankcases can be
separated the following components must be
removed:

a) Valve cover (Section 8) (see Note 2}.

b) Camshafts (Section 9) (see Note 2).

c) Cylinder head (Section 10) (see Note 2).

d) Camshaft drive gear assembly (Section

13) (see Note 2).

e) Cylinder block (J and К models) (Section

14) (see Note 2).

f) Starter clutch (Section 15).

g) Clutch (Section 16).

h) Water pump (Chapter 3).

i) Gearchange mechanism external

components (Section 20) (see Note 2). j) Oil sump (Section 18). k) Oil pump (Section 19). I) Alternator rotor (Chapter 9).

3 Unscrew the two bolts securing the input
shaft bearing retainer plate to the right-hand
side of the crankcase and remove the plate
(see illustration),

4 Unscrew the six (J and К models) or seven (L, N and R models) 6 mm upper crankcase bolts, noting their different lengths (see illustrations). Unscrew the bolts evenly, a little at a time and in a reverse of the numerical tightening sequence until they are finger-tight, then remove them. Note: As each bolt is removed, store it in its relative position in a cardboard template of the crankcase halves. This will ensure all bolts are installed in their correct locations on reassembly. Also note the washers fitted with certain bolts, whose location should be identified by a triangle cast into the crankcase.

5 Turn the engine upside down.

6 Unscrew the single 8 mm bolt from the rear left-hand corner of the crankcase (the bolt will actually be on your right as you are looking down on the underside of the engine) (see illustration 21.4a or b).

7 Unscrew the thirteen 6 mm lower crankcase bolts evenly, a little at a time and in a reverse of the numerical tightening sequence, until they are finger-tight, then

Дата добавления: 2015-10-29