Motive Power Industry BLUR 150, Service Manual

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D.Dismantling
a.Dismantling Cylinder
1.Remove the cylinder head.
2.Remove 2 bolts, then the camshaft chain adjuster
3.Remove CAM chain guide.
4.Remove cylinder.
5.Remove the cylinder gasket, lock pin and
clean the gasket on the cylinder.
b.Dismantling piston
1.Remove the piston pin clip.
NOTICE:
2.Remove the piston pin and take off
Dot’ drop the clip into the crankcase.
the piston.
3.Check piston, piston pin, piston ring.
4.Remove the piston ring
NOTICE: NOTICE:
5.Clean the carbon in the groove of the
Don’t make piston ring worn out or damaged
piston ring.
c.
PISTON OUTER DIA MEASUREMENT:
1.Measuring location:
Perpendicular to the piston pin hole, down to
5mm(150CC) form the piston skirt.
Limit of use : change it when less than 57.4mm.( 150CC)
2.The clearance between the piston and piston pin:
3.Checking any wearing, damage inside the cylinder.
Limit of use : change it when above 0.005m.
Vertical to piston pin, and in X-Y direction to
measure cylinder bore from the upper, middle and
lower location.
Limit of use : Change it when above 57.6mm(150CC)
4.The maximum clearance between the cylinder and
piston pin.
Limit of use : Change it when above 0.1mm.
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