Throttle Opener

Ensure transmission is in Neutral or Park. Set parking brake. Turn ignition on for 5 seconds, and then start engine. Run engine at 2000 RPM for 5 minutes to warm it to operating temperature. Return engine to idle speed. Turn all accessories off. Disconnect and plug vacuum hose from throttle opener on throttle body.
Engine speed should increase to 2150-2250 RPM when vacuum hose is removed from throttle opener. If engine speed is not within specification, adjust by turning throttle opener adjusting screw. See Fig 1 . Reconnect vacuum hose when adjustment is within specification. See THROTTLE OPENER SPECIFICATIONS table.

THROTTLE OPENER SPECIFICATIONS

Application

⁽¹⁾ RPM

Samurai

2150-2250

⁽¹⁾	Idle speed specification is with transaxle or transmission in Neutral or Park and vacuum hose disconnected and plugged at throttle opener.

Fig 1: Adjusting Throttle Opener

Courtesy of SUZUKI OF AMERICA CORP.