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Suzuki GSF650 - Service Manual

Suzuki GSF650
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GSF650/A/S/SA
GSX650F
Printed in Japan
K7 K8
K7
·
K8
99500-36172-01E
GSF650/A/S/SA
GSX650F

Table of Contents

Questions and Answers

  • R
    Raymond MorrisAug 5, 2025
    What to do if my Suzuki GSF650 is difficult to start?
    • B
      bennettjulieAug 5, 2025
      If your Suzuki Motorcycle is difficult to start, begin by performing a visual inspection. Specifically, check the engine oil level and look for any signs of leakage. Next, inspect the engine coolant level and check for coolant leakage. After that, check the fuel level and look for any fuel leakage. Also, make sure to check the air cleaner element for clogging. You should also check the battery condition, throttle cable play, vacuum hoses for looseness, bends, or disconnections, and look for any broken fuses. Furthermore, check the FI light and other warning lights, speedometer operation, exhaust gas leakage and noise, each coupler disconnection, and clogged radiator fins.
  • T
    Thomas BarnettAug 20, 2025
    Why does my Suzuki GSF650 battery run down quickly?
    • D
      Daniel WilsonAug 20, 2025
      If your Suzuki Motorcycle's battery runs down quickly, it could be due to several reasons. Excessive electricity usage from accessories might be the cause, so try removing them. Alternatively, current leakage could be the issue, potentially stemming from a short circuit in the wire harness, loose or disconnected wires, or a faulty battery. Issues with the charging voltage, such as a faulty battery or abnormal driving conditions, can also lead to this problem. Other potential causes include a faulty stator coil, disconnected lead wires, faulty slip ring(s) and/or brush(-es), a faulty rectifier and/or IC regulator, a short circuit in the wire harness, or poor contact of couplers.

Suzuki GSF650 Specifications

General IconGeneral
Displacement656 cc
Bore x Stroke65.5 mm x 48.7 mm
Compression Ratio11.5:1
Fuel SystemFuel injection
IgnitionElectronic ignition (transistorized)
StarterElectric
Transmission6-speed, constant mesh
Final DriveChain
Front SuspensionTelescopic, coil spring, oil damped
Rear SuspensionLink type, coil spring, oil damped
Front Tire120/70ZR17M/C (58W), tubeless
Rear Tire160/60ZR17M/C (69W), tubeless
Overall Length2, 130 mm
Rear BrakesDisc brake
Fuel Tank Capacity19.0 L
Wheelbase1, 470 mm
Seat Height790 mm
Ground Clearance135 mm
Engine Type4-stroke, liquid-cooled, DOHC, 4-cylinder

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