Service Manual — page 43 of 715

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PERIODIC MAINTENANCE 2-21
Periodic Maintenance Procedures

• Back  out the same number of turns counted when first
  turned in. This is to set the screw to its original position.
                             NOTE
    ○A throttle body has different “turns out” of the bypass
     screw for each individual unit. On setting the bypass
     screw, use the “turns out” determined during disassem-
     bly.

• Repeat   the same procedure for other bypass screws.
• If the vacuums
  Repeat   the synchronization.
                  are correct, check the output voltage of the
    main throttle sensor (see Main Throttle Sensor Inspection
    in the Fuel System (DFI) chapter).
    Special Tool - Throttle Sensor Setting Adapter:     57001
                      -1538

    Main Throttle Sensor Output Voltage
     Connections to Adapter:
        Digital Meter (+) → W (sensor Y/W) lead
        Digital Meter (–) → BK (sensor G) lead

      Standard:   DC 1.03 ∼ 1.06 V at idle throttle opening

• Remove
  hoses.
         the vacuum gauge hoses and install the vacuum

○Run the vacuum hoses according to Cable, Wire, and
    Hose Routing section in the Appendix chapter.
•   For US, CA, ID and SEA-B2 models, install the rubber
    caps on the original position.
•   Install the removed parts (see appropriate chapters).
Fuel System Inspection
Fuel Hose Inspection (fuel leak, damage, installation
condition)
○If the motorcycle is not properly handled, the high pres-
 sure inside the fuel line can cause fuel to leak [A] or the
 hose to burst. Remove the fuel tank (see Fuel Tank Re-
 moval in the Fuel System (DFI) chapter) and check the
 fuel hose.
 Replace the fuel hose if any fraying, cracks [B] or bulges
 [C] are noticed.

• Check  that the fuel hose is routed according to Cable,
  Wire, and Hose Routing section in the Appendix chapter.
    Replace the hose if it has been sharply bent or kinked.
     Hose Joints [A]
     Fuel Hose [B]