On the very top of the engine... and not easy to get to must pull off side cover to access also use tools that came in kit with bike they are the correct length to get at it
its inside the exhaust
0.070
BKR6E plug with 0.035 gap.
Sportsman 400 4x4 94-97 .028 NGKBR8ES
For a 2005 Polaris Sportsman 500 6x6, the recommended spark plug is the NGK BR9ES. This spark plug is designed to provide optimal performance and reliability for your ATV. Always ensure the spark plug gap is set correctly according to the manufacturer's specifications before installation.
To remove the spark plug on a Polaris Sportsman 400, first ensure the engine is cool and the ignition is off. Locate the spark plug, which is typically found on the side of the engine, and disconnect the spark plug wire. Use a spark plug socket and ratchet to unscrew the spark plug by turning it counterclockwise. Once removed, inspect or replace as needed, and then reassemble by reversing the steps.
To replace the spark plug on a 2004 Polaris Sportsman 700, first, ensure the engine is cool and disconnect the spark plug wire. Use a socket wrench to remove the old spark plug by turning it counterclockwise. Before installing the new spark plug, check the gap and adjust if necessary. Finally, insert the new spark plug, tighten it securely, and reconnect the spark plug wire.
To change a spark plug you need to take off the seat and the side panel on the right side. After you do this the spark plug will be in front of the carb and on top of the engine block.
On top of the cylinder head directly under the fuel tank.
Just changed a plug this AM. Remove the right side panel. On top of the cylinder (top of engine) there is an orange or red rubber plug. Spark Plug is under this waterproof plug. Need a 5/8" spark plug socket and about a 3 inch extention to remove plug. Kind of a pain to get to. Tight area to work in. Good Luck!
Take the seat off , then the right side cover . The spark plug will be behind the ground cable on top of the motor . Should be a special spark plug tool in your tool kit .
the spark plug is located directly under the gas tank, If you pull off the left side pannel you wlll be able to see the wire.