1.13
Section 1
Safety and General Information
1
Ignition
Spark Plug Type (Champion
®
or Equivalent) ............................................. RC12YC, XC12YC, or Platinum 3071
Spark Plug Gap ............................................................................................... 0.76 mm (0.030 in.)
Spark Plug Torque .......................................................................................... 24.4-29.8 N·m (18-22 ft. lb.)
Ignition Module Air Gap ............................................................................... 0.28/0.33 mm (0.011/0.013 in.)
Ignition Module Fastener Torque ................................................................. 4.0-6.2 N·m (35-55 in. lb.)
Speed Sensor Air Gap (EFI engines) ............................................................. 1.50 ± 0.25 mm (0.059 ± 0.010 in.)
Muffler
Muffler Retaining Nuts Torque .................................................................... 24.4 N·m (216 in. lb.)
Oil Filter
Oil Filter Torque .............................................................................................. 3/4 - 1 turn after gasket contact
Oil Cooler
Oil Cooler/Adapter Nipple Torque .............................................................. 27 N·m (20 ft. lb.)
Piston, Piston Rings, and Piston Pin
Piston-to-Piston Pin Running Clearance .................................................... 0.006/0.017 mm (0.0002/0.0007 in.)
Piston Pin Bore I.D.
New ........................................................................................................... 17.006/17.012 mm (0.6695/0.6698 in.)
Max. Wear Limit ...................................................................................... 17.025 mm (0.6703 in.)
Piston Pin O.D.
New ........................................................................................................... 16.995/17.000 mm (0.6691/0.6693 in.)
Max. Wear Limit ...................................................................................... 16.994 mm (0.6691 in.)
Top Compression Ring-to-Groove Side Clearance
CV17 .......................................................................................................... 0.040/0.085 mm (0.0016/0.0033 in.)
CV18,CV20,CV22 (624 cc) ...................................................................... 0.040/0.080 mm (0.0016/0.0031 in.)
CV22/23 (674 cc) ...................................................................................... 0.030/0.076 mm (0.0012/0.0030 in.)
CV25,CV26,CV730-750 .......................................................................... 0.025/0.048 mm (0.0010/0.0019 in.)
Middle Compression Ring-to-Groove Side Clearance
CV17 .......................................................................................................... 0.030/0.080 mm (0.0012/0.0031 in.)
CV18,CV20,CV22 (624 cc) ...................................................................... 0.040/0.080 mm (0.0016/0.0031 in.)
CV22/23 (674 cc) ...................................................................................... 0.030/0.076 mm (0.0012/0.0030 in.)
CV25,CV26,CV730-750 .......................................................................... 0.015/0.037 mm (0.0006/0.0015 in.)
Oil Control Ring-to-Groove Side Clearance
CV17 .......................................................................................................... 0.046/0.201 mm (0.0018/0.0079 in.)
CV18,CV20,CV22 (624 cc) ...................................................................... 0.060/0.202 mm (0.0024/0.0080 in.)
CV22/23 (674 cc) ...................................................................................... 0.046/0.196 mm (0.0018/0.0077 in.)
CV25,CV26,CV730-750 .......................................................................... 0.026/0.176 mm (0.0010/0.0070 in.)
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