4-26 - POWERHEAD 90-826148R2 MARCH 1997
IMPORTANT: Snap ring groove faces up towards
flywheel.
5. Attach main bearing races with holes towards
lower gear end of crankshaft. Secure each main
bearing race with retaining ring. Lubricate top
mainbearingwith2-cycleengine oilandinstallto
crankshaft as shown.
52888
a
b
c
a - Main Bearing Race
b - Retaining Ring (Groove Faces Flywheel)
c - Top Main Bearing (One Piece)
6. Positioncylinderblockandpistonrodsasshown.
Insert locating pins (a).
52885
Lower End Flywheel End
7. Place crankshaft into cylinder block; align and
seat top and center main bearings so that locat-
ing pins on block align with holes ineach bearing
race.
52887
Installing Rods to Crankshaft
1. Oil rod and bearing cage with 2-cycle oil.
2. Pull rod into place and install bearing cages as
shown.
52893
a
a - Bearing Cage
NOTE:Cleanrodbolt/rodcapboltholesofoilandde-
bris before reassembly.
IMPORTANT: The rod cap and rod must be
aligned and held together when threading oiled
bolt.Check thatmatingsurfacesaretighttogeth-
er after bolt enters threads in piston rod.
3. Place rod cap over bearing cages. While holding
cap to rod, insert slightly oiled bolts and lightly
tighten while observing cap to rod alignment.
52892
a
a - Rod Cap
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