A Throttle linkage springs (A) and fuel supply joint pipe (B)

Fuel and exhaust systems 4»11

B Breather joint pipe (C), sub-air

Cleaner joint pipe (D) and synchronising

Springs (E)

Accelerator cable (A), decelerator cable (B), lock nut (C) and adjuster (D)

Accelerator cable (A), decelerator

Cable (B), adjuster locknut (C) and lower

Lockouts (D)

linkage springs are arranged to ensure that they are fitted correctly on reassembly. Also note the arrangement of the sub-air cleaner, carburettor breather and fuel supply joint pipes (see illustration)

7Carefully separate the carburettors, taking care not to damage the fuel and air joints between each carburettor. Keep a careful watch on all springs as the carburettors are separated; the synchronising springs should stay with the adjusting screw, but if they don't, refit them so that they are not lost.

8 Pull out the fuel and air vent joint pipes and discard the O-rings as new ones must be used.

9 Detach the carburettor joining stud spacers. Note how the choke cable bracket is held against the left-hand carburettor body by the upper spacer.

Joining

10 Assembly is the reverse of the disassembly procedure. Fit the fuel and air vent joint pipes and the stud spacers all to one carburettor first before joining the two together. Use new O-rings on the fuel and air vent joints, and smear them with clean engine oil.

11Tighten the nuts on the carburettor joining studs to the torque settings specified at the beginning of this Chapter. Note:The upper joining nuts (nearest the engine) are 6 mm and the lower joining nuts are 5 mm thread diameter. Take great care when tightening to avoid damaging the carburettors.

12 Check the operation of both the choke and throttle linkages ensuring that both operate smoothly and return quickly under spring pressure before installing the carburettors.

13Check carburettor synchronisation (see Chapter 1).

10 Throttle cables-

removal and installation

*

Warning: Refer to the precautions given in Section 1 before proceeding.

Removal

1Remove the fuel tank (see Section 2). Whilst it is possible to detach the throttle cables with the carburettors in place, there is a limited amount of space to work in. If required, displace the carburettors to improve access (see Section 6).

2 The accelerator cable is the front cable in the twistgrip, the decelerator cable is the rear one. Slacken the locknut on the accelerator cable adjuster and thread the adjuster fully in, then tighten the locknut against it (see illustration).This resets the adjuster to the start of its range.

3 At the carburettor end, slacken the rear (accelerator) cable adjuster locknut (above the bracket) then unscrew the lower nut off the adjuster (see illustration).

4Slip the adjuster out of the bracket and detach the cable nipple from the carburettor throttle cam (see illustration).

5Now unscrew the front (decelerator) cable holder nut fully and slip the holder out of the bracket and detach the cable nipple from the throttle cam (see illustrations 10.3 and 10.4).Withdraw the cables from the bike noting the correct routing of each cable.

6 Unscrew the rear (decelerator) cable elbow nut from the throttle twistgrip, and slacken the front (accelerator) cable nut (see illustration).

7Remove the two handlebar switch screws and pull off the upper half of the switch housing then detach the cable nipples from the pulley (see illustration).

8Detach the lower half of the switch housing from the handlebar and withdraw the

Date: 2016-01-14; view: 543