16.5 Disconnect crankcase breather hose from plenum chamber stub
16.7a Disconnect throttle and choke control cables
16.7b Disengage wire clip before disconnecting throttle switch plug
16.8a Removing the throttle butterfly assembly and plenum chamber
16.8b Check intake stubs for splits or damage - renew if necessary
16.10a Never attempt to dismantle any part of butterfly assembly ...
16.10b ... and do not disturb screws linking butterflies