Dazon Raider Extreme 1100D Service Manual download pdf (Page 28)

Raider-Classic 150 (Oil-cooled&Internal Gearbox): Service Manual (single/ double-seat) EEC Version;3.0 Feb..2005

 The operational principle of the tensioner is as shown in the picture.

 As for the adjustment of the cam chain tensioner, turning clockwise is tightening, and turning

anticlockwise is loosening.

3.7 Valve and Valve Spring

3.7.1 Removal

a) Remove the cylinder head.

b) Remove the valve cotter with the valve compressor,;

Remove in turn the upper spring race, valve spring, lower spring

race, and valve stem oil seal.

c) Remove the valve from the other side.

3.7.2 Inspection

a) Inspect if the valve is bent or burned.

b) Inspect if the action is smooth between the valve and the valve

guide.

c) Measure the outer diameter of the valve stem.

Service limit 4.9 mm

d) Measure the free length of the inner and outer valve spring.

Valve Inlet Valve Exhaust Valve

Inner Spring 31.2mm 31.2mm

Outer Spring 34.1 Mm 34.1 Mm

3.7.3 Installation

a) Mount the spring retainer and valve guide oil seal.

 The removed parts should be placed properly in order. It's

better to place the intake valve parts and exhaust valve parts

separately.

 It is recommended to replace the valve guide oil seal with a new one.

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Dazon Raider Extreme 1100D Service Manual Page 28