Polaris R09VA17AA, Service Manual

Page: 86 / 187

3.42
ENGINE
Camshaft Installation - Timing Method 2
Reference Illustration Page 3.43
Stator housing is installed . NOTE: Use this method only when the stator is installed and cam shaft 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.
Secure and maintain tension so that the chain does not fall off the
crankshaft sprocket.
3. Apply engine assembly lubricant to the camshaft main journals and cam lobes. Lubricate automatic compression release
mechanism with clean engine oil.
4. Orientate the camshaft for installation 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. Torque fasteners to specification.
8. After tensioner installation, rotate engine at least two revolutions and re-check marks/timing.
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