• Carefully turn the adjusting screw of the left throt- tle valve and reduce play until the reading of the Synchro tester changes. • Turn the adjusting screw very slightly in the op- posite direction until the reading returns to its original value. • Tighten the locknut to secure. L Note: Make sure that the reading does not change when you tighten the locknut. Adjust throttle cable play at throttle valve so that no play is perceptible, but the throttle valve reliably contacts the stop screw (no strain on cable). S000100 • Turn the adjusting screws to adjust the play of the cables for the left and right throttle valves. • Adjust the right throttle valve in the same way. L Note:
Zero play can cause the throttle valves to rattle. Play of throttle cable: .... approx. 2 mm (0.0787 in) • Connect hose of BMW Synchro to vacuum Note: Make sure that both throttle valves are closed. • Use the adjusting screws (arrow) to adjust play of the throttle cables. e Attention: Do not tamper with the sealed stop screws of the throttle valves, as otherwise the idle-speed volume flow will have to be reset by the manufacturer. Play of throttle cable: .....................................approx. 0.5 mm (0.0197 in) • Push the rubber cap into position over the ad- justing screw. 00.56 adapter and connect cables to BMW MoDiTeC. • Start the engine. e Attention:
Do not allow the engine to idle for longer than is nec- essary, because the trim panels near the exhaust could be damaged. • Adjust idle speed by turning the air bypass screws while checking that the carburettors are balanced. Idle speed: ........................................ 1,100 ±50 rpm R22000320 R22000320