Secure the exhaust camshaft in a vise with wood blocks, then loosen the exhaust camshaft sprocket mounting bolt.

NOTE: After this procedure, remove wood chips that may be stuck to the exhaust camshaft.

Remove the exhaust camshaft sprocket.

Install the exhaust camshaft sprocket.

Apply new engine oil to the threads of the exhaust camshaft sprocket mounting bolts, then loosely install them.

Secure the exhaust camshaft in a vise with wood blocks, then tighten the exhaust camshaft sprocket mounting bolt.

NOTE: After this procedure, remove wood chips that may be stuck to the exhaust camshaft.