Section 04 ENGINE (2-STROKE)
Subsection 04 (TOP END)
947 DI Engines
Securecirclipinpistongroovewithitsbentendin
piston notch as shown.
1
F07D0AB
1. Circlip end in piston notch
All Engines
To easily insert circlip into piston, use circlip in-
staller.
ENGINE TOOL P/N
717 and 787 RFI 529 035 562
947 DI 529 035 563
F06B01A
1
TYPICAL
1. Circlip installer
– Remove sleeve from pusher then insert circlip
into its bore.
– Reinstall sleeve onto pusher and push until cir-
clip comes in end of tool.
F00B0QA
1
TYPICAL
1. Circlip near end of tool
– Position end of tool against piston pin opening.
– Firmly hold piston against tool and tap tool with
a hammer to insert circlip into its groove.
F00B0RA
CAUTION: The hand retaining the piston
should absorb the energy to protect the con-
necting rod.
Cylinder Base Gasket
Install new base gasket.
NOTE: The general procedure is to install a new
gasket of the same thickness. However, if you
do not know the gasket thickness that was in-
stalled or if a crankshaft and/or crankcase repair
or replacement was involved, refer to the COM-
BUSTION CHAMBER VOLUME MEASUREMENT
to properly determine the required gasket thick-
ness.
Five thicknesses of cylinder base gaskets are avail-
able for a precise adjustment of the squish gap.
To identify gasket thickness, refer to the identifi-
cation holes on the gasket.
smr2004-Complete Line Up 121
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