6. CYLINDER HEAD/VALVES PEOPLE 250
Cam Chain Camshaft Gear
CAMSHAFT INSTALLATION
Turn the A.C. generator flywheel so that the
"T" mark on the flywheel aligns with the
index mark on the right crankcase cover.
Keep the round hole on the camshaft gear
facing up and align the punch marks on the
camshaft gear with the cylinder head surface
(Position the intake and exhaust cam lobes
down.) and install the cam chain over the
camshaft gear.
Punch Marks Camshaft Gear
Install the dowel pins. Cam Chain Dowel Pins
Camshaft
Cap Nuts
Install the camshaft holder, washers and nuts
on the camshaft holder.
Tighten the four cylinder head nuts and the
two bolts between the cylinder head and
cylinder.
Torque: Cylinder head cap nut: 24.5N-m
Cylinder & cylinder head bolt: 7.8
11.8N-m
· Apply engine oil to the threads of the
cylinder head cap nuts.
· Diagonally tighten the cylinder head Bolts Camshaft Holder
cap nuts in 23 times.
· First tighten the cylinder head cap nuts
and then tighten the bolts between the
cylinder and cylinder head to avoid
cracks.
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