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ENGINE

4-86

CAMSHAFT INSTALLATION – TIMING

METHOD 1

Refer to page 48

Stator housing is removed: NOTE: Use this method only

when the stator is removed and camshaft drive

sprocket is in view.

1. Rotate the crankshaft until the keyway on the crankshaft is

pointed ’UP” (keyway facing upward).

2. Align the cam chain onto the teeth of the crankshaft

sprocket. Use a wire to pull the chain up through the cylinder

and cylinder head and to hold it in place. Secure the chain.

3. Apply grease, or engine assembly lubricant to the camshaft

main journals and cam lobes. Lubricate

automatic compression

release mechanism with clean engine oil.

4. Orientate the camshaft with the lobes facing downward.

5. Disconnect the wire securing the cam chain and loop the

cam chain over the sprocket while

verifying the cam is inserted

with the alignment marks parallel to the gasket surface.

6. Check all cam-timing marks to verify proper cam timing,

and install the rocker arm assembly.

Torque the cylinder stud nuts to specification.

NOTE: Do not rotate engine until tensioner and

rocker assembly is installed.

7. Install the tensioner and rocker assembly.

8. After tensioner installation, rotate engine at least two

revolutions and re-check marks/timing.

CAMSHAFT INSATALLATION – TIMING

METHOD 2

Refer to page 49

Stator housing is installed: NOTE: Use this method only when

the stator is installed and camshaft drive sprocket is in view.

1. Rotate the crankshaft until the single (TDC)

timing mark

(Top Dead Center) on the flywheel is

view in the center of the

timing inspection window.

Be sure to use the single TDC mark when

installing the cam.

Do not use any advance marks (if evident).

2. Align the cam chain onto the teeth of the cam

chain drive

sprocket. Use a wire to pull the chain

up through the cylinder

and cylinder head and to hold it in place. Secure the chain.

3. Apply grease, or molybdenum disulfide grease to the

camshaft main journals and cam lobes. Lubricate automatic

compression release mechanism with clean engine oil.