Service Precautions - Sym HD 125 Service Manual

Service Precautions

Always use with Sanyang genuine parts and
recommended oils. Using non-designed parts
for Sanyang motorcycle may damage the
motorcycle.
Special tools are designed for remove and
install of components without damaging the
parts being worked on. Using wrong tools may
result in parts damaged.
When servicing this motorcycle, use only metric
tools. Metric bolts, nuts, and screws are not
interchangeable with the English system, using
wrong tools and fasteners may damage this
vehicle.
Clean the outside of the parts or the cover
before removing it from the motorcycle.
Otherwise, dirt and deposit accumulated on the
part's surface may fall into the engine, chassis,
or brake system to cause a damage.
Wash and clean parts with high ignition point
solvent, and blow dry with compressed air. Pay
special attention to O-rings or oil seals because
most cleaning agents have an adverse effect on
them.
To this chapter contents
1. GENERAL INFORMATION
Never bend or twist a control cable to prevent
unsmooth control and premature worn out.
Rubber parts may become deteriorated when
old, and prone to be damaged by solvent and oil.
Check these parts before installation to make
sure that they are in good condition, replace if
necessary.
When loosening a component which has
different sized fasteners, operate with a
diagonal pattern and work from inside out.
Loosen the small fasteners first. If the bigger
ones are loosen first, small fasteners may
receive too much stress.
Store complex components such as
transmission parts in the proper assemble order
and tie them together with a wire for ease of
installation later.
Note the reassemble position of the important
components before disassembling them to
ensure they will be reassembled in correct
dimensions (depth, distance or position).
Components not to be reused should be
replaced when disassembled including gaskets
metal seal rings, O-rings, oil seals, snap rings,
and split pins.
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