Remove the air cleaner assembly.
Disconnect the output shaft (countershaft) speed sensor connector, and remove the output shaft (countershaft) speed sensor (A).

Install a new O-ring (B) on the new output shaft (countershaft) speed sensor, then install the output shaft (countershaft) speed sensor.
Check the connector for rust, dirt, or oil, then connect the connector securely.
Install the air cleaner assembly.
Heater Unit - Core Replacement Part-2
Remove the drain hose (A), then remove the mounting nuts and the blower-heater
unit (B).
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Cam Chain Removal
NOTE: Keep the cam chain away from magnetic fields.
Turn the crankshaft pulley so its top dead center (TDC) mark (A) lines up
with the pointer (B).
Remove the cylinder he ...
Carbon Monoxide Hazard
Your vehicle’s exhaust contains carbon monoxide gas. Carbon monoxide should not
enter the vehicle in normal driving if you maintain your vehicle properly and follow
the information on this page. ...