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Yamaha 9.9C Service Manual

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9.9C
15C
SERVICE MANUAL
LIT-18616-02-59
63V-28197-1F-11

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   Summary of Contents for Yamaha 9.9C

  • Page 1 9.9C SERVICE MANUAL LIT-18616-02-59 63V-28197-1F-11...
  • Page 2: Important Information

    NOTICE This manual has been prepared by Yamaha primarily for use by Yamaha dealers and their trained mechanics when performing maintenance procedures and repairs to Yamaha equipment. It has been written to suit the needs of persons who have a basic understanding of the mechanical and electrical concepts and procedures inherent in the work, for without such knowledge attempted repairs or service to the equipment could render it unsafe or unfit for use.
  • Page 3 Model name 9.9C USA and 9.9CMH 15CMH CANADA name Indication...
  • Page 9 Model Approved Staring model code serial No. World wide 9.9FMH 9.9CMH 682K S:1009214 15FMH 15CMH 684K S:1019178...
  • Page 17: General Specifications

    SPEC GENERAL SPECIFICATIONS GENERAL SPECIFICATIONS Model Item Unit 9.9C Dimensions Overall length mm (in) 873 (34.4) Overall width mm (in) 332 (13.1) Overall height mm (in) 1,040 (40.9) Transom height mm (in) 440 (17.3) Boat transom height mm (in) 381 (15.0)
  • Page 18 SPEC GENERAL SPECIFICATIONS Model Item Unit 9.9C Bracket unit Tilt angle Degree 8.0, 12.0, 16.0, 20.0 Tilt-up angle Degree 67.0 Steering angle Degree 45.0 + 45.0 Drive unit Gear shift positions F-N-R Gear ratio 2.08 (27/13) Reduction gear type Spiral bevel gear...
  • Page 19: Maintenance Specifications

    SPEC MAINTENANCE SPECIFICATIONS MAINTENANCE SPECIFICATIONS ENGINE Model Item Unit 9.9C Cylinder head Warpage limit mm (in) 0.10 (0.0039) Cylinder Bore size mm (in) 56.000–56.020 (2.2047-2.2055) Wear limit mm (in) 56.1 (2.21) Taper limit mm (in) 0.08 (0.0032) Out-of-round limit mm (in) 0.05 (0.0020)
  • Page 20 SPEC MAINTENANCE SPECIFICATIONS Model Item Unit 9.9C Thermostat Opening temperature °C (°F) 48.0–52.0 (118.40–125.60) Fully open temperature °C (°F) 60.0 (140.00) Valve open lower limit mm (in) 3.0 (0.12) Carburetor ID mark 63V10 Float height mm (in) 12.5–15.5 (0.49–0.61) Valve seat size mm (in) 1.2 (0.05)
  • Page 21 SPEC MAINTENANCE SPECIFICATIONS ELCTRICAL Model Item Unit 9.9C Ignition system Ignition timing (full retarded) Degree A.T.D.C. 4.0–6.0 (full advanced) Degree B.T.D.C. 29.0–31.0 Piston position (full retarded) Degree A.T.D.C. 0.1 (full advanced) Degree B.T.D.C. 4.0–4.4 (B.T.D.C. 0.16–0.18) Spark plug gap mm (in) 0.9–1.0 (0.035–0.039 )
  • Page 24: Maintenance Interval Chart

    Greasing points Greasing Gear oil Change Fuel system Inspection Fuel filter (can be Inspection / cleaning disassembled) Fuel tank (Yamaha Inspection / cleaning portable tank) Idling speed (carburetor Inspection / adjustment models) Anode(s) (external) Inspection / replacement Anode(s) (internal) Inspection / replacement...
  • Page 29 INSP CONTROL SYSTEM/LOWER UNIT...
  • Page 35 FUEL CARBURETOR REMOVAL...
  • Page 37 FUEL CARBURETOR REMOVAL...
  • Page 39 FUEL CARBURETOR...
  • Page 40 FUEL CARBURETOR REMOVAL AND INSTALLATION CHART Step Procedure/Part name Q’ty Service points CARBURETOR DISASSEMBLY Follow the left “Step for removal. Carburetor assembly Refer to the “CARBURETOR REMOVAL” section in chapter 4. Drain screw Washer Screw (with washer) 4 x 14 mm Float chamber Float chamber packing Screw...
  • Page 41 FUEL CARBURETOR SERVICE POINTS NOTE: 8 Before disassembling the carburetor, make sure to note number of times the pilot screw is turned out from the seated position to its set position. 8 Do not use steelwire for cleaning the jets as this may enlarge the jet diameters and seri- ously affect performance.
  • Page 42 FUEL CARBURETOR Carburetor assembly NOTE: Before assembling the carburetor, make sure to turn the pilot screw the same number of times, as noted before disassembly, from the seated position to its set position.
  • Page 46 POWR POWER UNIT REMOVAL...
  • Page 75 LOWR LOWER UNIT REMOVAL...
  • Page 76 LOWR LOWER UNIT REMOVAL...
  • Page 84 LOWR DRIVE SHAFT, FORWARD GEAR AND SHIFT ROD 6-10...
  • Page 100 BRKT STEERING HANDLE AND SHIFT LEVER...
  • Page 101 BRKT STEERING HANDLE AND SHIFT LEVER...
  • Page 105 BRKT UPPER CASE AND EXHAUST MANIFOLD...
  • Page 108 BRKT CRAMP BRACKET...
  • Page 109 BRKT CRAMP BRACKET 7-10...
  • Page 112 ELEC...
  • Page 113 ELEC ELECTRICAL COMPONENTS...
  • Page 114 ELEC ELECTRICAL COMPONENTS...
  • Page 117 ELEC IGNITION SYSTEM...
  • Page 122 ELEC IGNITION SYSTEM 8-10...
  • Page 124 ELEC STARTING SYSTEM 8-12...
  • Page 135 YAMAHA MOTOR CORPORATION, USA Printed in USA...

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15c

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