Suzuki RA410, Manual

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5) Remove cap and using a scale (2) on gaging plastic envelope,
measure gaging plastic width (1) at the widest point (clearance).
If clearance exceeds its limit, use new standard size bearings
and remeasure clearance.
1
2
ASSEMBLY
NOTE:
Two sizes of piston are available as standard size spare part
so as to ensure proper piston-to-cylinder clearance. When
installing a standard size piston, make sure to match piston
with cylinder as follows.
a) Each piston has stamped number 1 or 2 as shown. It represents
outer diameter of piston.
b) There are paints on the cylinder block as shown. The color (red
or blue) of each paint represents cylinder bore diameter. The
first paint from crank pulley side represents inner diameter of
No.1 cylinder, the second paint of No.2 cylinder, the third paint
of No.3 cylinder and the fourth paint of No.4 cylinder.
c) Stamped number on piston and paint on cylinder block should
correspond. That is, install number 2 stamped piston to cylinder
which is identified with blue paint and a number 1 piston to cylin-
der with red paint.
Crank pulley side Flywheel side
6A4-60 ENGINE MECHANICAL
Item Standard Limit
Bearing
clearance
0.020 – 0.040 mm
(0.0008 – 0.0016 in.)
0.065 mm
(0.0026 in.)
Piston Cylinder
Number
at the top
(mark)
Outer diameter
Color
(paint)
Bore diameter
Piston-to-cylin-
der clearance
1
67.98 – 67.99 mm
(2.6764 – 2.6768
in.)
Red
68.01 – 68.02 mm
(2.6776 – 2.6780
in.)
0.02 – 0.04 mm
(0.0008 –
0.0015 in.)
2
67.97 – 67.98 mm
(2.6760 – 2.6764
in.)
Blue
68.00 – 68.01 mm
(2.6772 – 2.6776
in.)
0.02 – 0.04 mm
(0.0008 –
0.0015 in.)