Sym JOYMAX 250 User Manual

7. Cylinder / Piston
7-5
Measure the outer diameter of piston pin.
Service Limit: 16.96 mm
Measure the inner diameter of connecting rod
small end.
Service Limit: 17.064 mm
Measure the inner diameter of piston pin hole.
Service Limit: 17.02 mm
Calculate clearance between piston pin and its
hole.
Service Limit: 0.02 mm
Measure piston outer diameter.
Caution
The measurement position is 10 mm distance
from piston bottom side, and 90° to piston pin.
Service limit：70.380 mm
Compare measured value with service limit to
calculate the clearance between piston and
cylinder.
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Sym JOYMAX 250 Specifications

General

Displacement	249.4 cc
Fuel System	Electronic Fuel Injection
Cooling System	Liquid cooled
Front Suspension	Telescopic fork
Front Brake	Disc
Rear Brake	Disc
Seat Height	770 mm
Dry Weight	182 kg
Width	760 mm
Height	1, 420 mm
Wheelbase	1, 550 mm
Engine Type	4-stroke, Single cylinder
Transmission	CVT
Fuel Capacity	12 L
Length	2190 mm