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Trekker - Squab
752168
750069
REFITTING
10
64706
64710
69104
750808
Closing the crankcase halves
- Position both locating dowls in the
LH crankcase:
- Put the crankcase gasket in place
(no oil, no grease).
- Position the RH crankcase and fit it
on being careful not to damage the oil
seal where it meets the cotter key.
-Screw the extended nut 750069 onto
the end of the crankshaft.
- Position the washer 750808 (50 x 29
x 3mm).
-Position the tool 64706.
- Position the centring tool 64710.
- Turn the torque handle 69104 until
the crankcases close completely.
- Hold the crankshaft assembly steady
on the left hand side with the starter
ring gear.
- Grease the oil pump shaft and
position the shaft / seat assembly in
the crankcase.
- Make sure that the crankshaft
assembly can rotate normally and
drives the oil pump shaft correctly.
- Position the 6 fastening screws (3 =
L 45mm, 3 = L 70mm) and tighten
them to 1 m.dan.
Make sure the crankcase gasket is
level.
Lubricate the crankshaft assembly
and bearings with 2-stroke engine oil.
Refitting the engine
Assembly of the crankshaft into the
left hand crankcase:
- Fit the crankshaft into the bearing.
- Screw the ex tended nut 750069
onto the end of the crankshaft.
- Fit tool 64706 with the plate 752168
onto the extended nut and centre the
assembly onto the crankcase using 4
screws.
- Position the centring tool 64710.
- Screw the torque handie 69104 onto
the extended nut 750069 while
keeping the crankshaft assembly
steady. Continue turning the torque
handle until the crankshaft comes into
contact with the bearing.
Waming :
do not jam the conrod
cabre in the crankcase.
In order to hold the crankshaft
assembly easily, use the rotor
positioned in its right hand side
woodruff key.
Make sure the crankshaft assembly is
correctly positioned in relation to the
crankcase mouth (the middle of the
conrod must correspond with the level
of the crankcase mouth).
Refitting the piston
- Check the cylinder and piston parts
are a matched pair.
- Fit the needie bearing race into the
conrod small end after having oiled it
(2-stroke engine oil).
- Position the piston with the arrow
pointing towards the exhaust port.
-Push in the wrist pin.
-Fit the snap rings. It is essentiel that
they are new.
The opening of the snap ring will be
positioned at the top or at the bottom,
but under no
circumstances to the side.