Dazon Raider Extreme 1100D Service Manual download pdf (Page 16)

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

3.1 Cylinder

3.1.1 Cylinder Removal

The removal can be done on the vehicle body.

a) Remove the cylinder head;

b) Remove the cylinder;

c) Remove the cylinder gasket and bolts;

d) Clean the cylinder gasket.

3.1.2 Cylinder Inner Wall Wear Inspection

Use a bore diameter dial gauge to measure the degree of wear.

The measuring point is divided into three sectional planes in the axial

direction: upper, middle, lower. Measure every plane each time on the

mutually perpendicular directions (X, Y).

The least measured dimension is the cylinder bore, the data measured at

the most upper position is the largest diameter, and the data measured at

the lower position is the smallest diameter. At the same cross section,

measure the difference of diameter between the two points mutually

perpendicular, which is the circularity of the cylinder.

In the situation without a dial gauge, a feeler gauge can be used to make the relativity measurement.

Put a new piston into the cylinder, and use the feeler gauge to measure the gap between the piston

skirt and the cylinder wall, and then figure out the abrasion loss of the cylinder.

If the circularity of the cylinder exceeds the limit, a cylinder-reboring machine should be used to

re-bore the cylinder, and to enlarge its diameter by 0.50mm or 1.00mm, then fit the piston and

piston ring whose sizes are also enlarged.

 Don’t damage the bond area of the cylinder.

 Don’t drop sundries like the cylinder gasket material into the crankcase.

 In order to make the measuring point perpendicular with the bore axis of the cylinder,

and to ensure the precision of the measurement, the bar of the gauge can be slightly

swung in the direction of the gauge bar, and take the smallest reading number as the

result.

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Dazon Raider Extreme 1100D Service Manual Page 16