Generic Trigger X 50ccm User Manual

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Item Standard value
Allowable
limit
Bore diameter 40.27-40.28 40.3
Bent 0.05
Cylindricity 0.05
Air
cylinder
Roundness 0.05
Top ring 0.015-0.05 0.09
clearance between the piston
ring and piston ring groove
Second
ring
0.015-0.05 0.09
Top ring 0.1-0.25 0.5
Interface clearance
Second
ring
0.1-0.25 0.5
Outer diameter of piston 40.22-40.23 40.2
Clearance of piston and air cylinder 0.04-0.06 0.1
Piston and
piston
ring
Bore diameter of piston pin hole 12.002-12.008 12.04
Outer diameter of piston pin 11.994-12 11.96
Clearance of piston pin hole and piston pin 0.002-0.014 0.08
Bore diameter of connecting rod small end 14.995-15.006 15.06
11.2 Fault diagnosis
·If bad startup or unsmooth low speed occurs，inspect whether white fume is ejected out of the crankcase
breather. If the crankcase vent hole does have white fume ejected, the piston ring must be worn out, burnt out
or the piston must be broken.
Low compression pressure ite fume in vent pipe
·The piston ring is worn out，burnt out or broken. ·The piston ring is worn out or damaged.
·The air cylinder piston is worn out or damaged. ·The air cylinder piston is worn out or damaged.
Compression pressure too high Piston noises
·The piston combustion chamber has carbon deposit. ·The air cylinder piston and piston ring is worn out.
·The piston pin hole and piston pin are worn out.
11.3 Disassembly of air cylinder
Disassemble the cylinder body.
Disassemble the gasket and scrape clean the adhesive
gasket at the cylinder junction.
Inspect the wear and tear of the cylinder inner wall.
Severe wear and replace it.
gasket
cylinder

Generic Trigger X 50ccm Specifications

General

Brand	Generic
Model	Trigger X 50ccm
Category	Motorcycle
Language	English