Service manual

Raider-Classic 150 (Oil-cooled&Internal Gearbox): Service Manual (single/ double-seat) EEC Version;3.0 Feb..2005
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b) After applying oil on the valve stem, mount it into the valve guide.
c) Mount the inner and outer valve springs;
Mount the valve lock with a spring compressor.
d) Tap the valve gently two or three times with a rubber hammer to make the valve and valve lock
match well.
3.8 Valve Guide
Carbon accumulation of the valve guide will make the valve move rough, causing the valve not to
open or close properly.
Valve guide abrasion is one of the reasons that cause the exhaust pipe fuming white smoke.
3.8.1 Clean of Carbon Accumulation
a) Remove the valve and valve springs.
b) Clean the carbon accumulation with a valve guide reamer.
3.8.2 Measurement of Inner Diameter
a) Calculate the clearance between the valve stem and valve
guide.(The inner diameter of the guide subtracts the outer
diameter of the valve stem).
Valve Inlet Valve Exhaust Valve
Service Limit 0.08mm 0.10mm
Service limit 5.03 mm
 When mounting, the twisting direction of the inner and outer springs must be
o
pp
osite
,
and can’t be the same.
 Don’t damage the valve.
 Turn right when using the reamer, and do not push in o
r
out directly with the reamer.
 When the abrasion of the valve guide exceeds the use limit, it should be replaced;
after re
p
lacin
g
a new valve
g
uide
,
the valve retainer must be ad
j
usted.