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6 Engine Removal,Inspection & Installation
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Valve Spring
Valve Spring keeps valve and valve seat tight.
Weakened spring results in reduced engine power
output and chattering noise from valve mechanism.
Measure the spring free length.
Spring free length out of range: ¡úReplace
Measure the force to compress the spring to the
specified length.
Valve spring tension out of range: Replace
Service Limit: (IN/EX)
182N-210N/31.5mm
Tool: Spring Scale.
Measure valve spring incline.
Spring incline out of range: Replace
Valve Spring Incline Limit: 2.5o/1.7mm
Assembly of Cylinder Head
Service Limit: 38.8mm
Tool: Vernier Caliper.
Install each valve spring seat;
Apply moly oil to valve stem seal and fit into
position.
Material: Moly oil
Note: Do not reuse the valve stem seal.
Insert the valves, with stems coated with moly oil
allaround.
Note: When inserting the valve, be careful not to
damage the lip of the stem seal.
Summary of Contents for CF500-5
Page 1: ...WWW CFMOTO COM CF500 5 SERVICE CF500 5A MANUAL...
Page 2: ...All rights reserved Zhejiang CFMOTO Power Co Ltd April 2009 WWW CFMOTO COM...
Page 24: ...1 20 CFMOTO...
Page 25: ...1 21 1 Maintenance Information 1 1 1 1 1...
Page 26: ...1 22 CFMOTO...
Page 47: ...2 19 2 Vehicle Body and Muffler 2 2 2 2 2 Visible Parts...
Page 80: ...4 7 4 Cooling and Lubrication system 4 4 4 4 4 Cooling System Chart...
Page 92: ...4 19 4 Cooling and Lubrication system 4 4 4 4 4...
Page 97: ...5 4 CFMOTO Removal Bolt 4 units of Engine...
Page 129: ...6 29 6 Engine Removal Inspection Installation 6 6 6 6 6 Primary and Secondary Sheave...
Page 222: ...11 Battery Charging System 11 11 11 11 11 11 9 Layout of Electric parts...
Page 230: ...12 8 CFMOTO Starting Motor...
Page 233: ...12 Ignition System 1 2 1 2 1 2 1 2 1 2 12 11 Ignition System Diagram...
Page 247: ...14 2 CFMOTO...
Page 248: ...14 Troubleshooting 14 14 14 14 14 14 3...
Page 249: ...14 4 CFMOTO...