Polaris 650 2023 Owner's Manual page 176

MAINTENANCE
4. Verify the spark plugs are installed and torqued. Re-install the spark plug
wires.
Verify you hear an audible "click" when pushing the spark plug caps down onto
the spark plugs. This ensures the plug caps are seated properly.
5. If you placed dryer sheets inside the engine compartment, remove them.
6. Using clean and dry shop towel, wipe down the exhaust pipe , silencer, and
clutch sheaves.
7. Install the primary drive belt onto the clutches with the "Polaris" writing
readable from the outside of the snowmobile.
8. Install the back-up (secondary) drive belt into the belt holder.
9. On carbureted snowmobiles, turn the fuel shut-off valve to the ON position.
10. With the track suspended up, off the ground, follow the track tension
adjustment procedure as outlined in your owner's manual.
11. Start and run the engine. Allow the engine to run for at least 15 minutes.
Occasionally "blip" the throttle to rev the engine.
The exhaust may emit more smoke than usual as the fogging oil is burned out
12. While the engine is running, verify there are no coolant leaks (on liquid
cooled engines). After engaging the throttle a few times to spin the track,
verify the track is aligned with the slide rails.
13. Turn off the engine. If the track requires, re-align the track at this time.
14. After adjusting the track or allowing the engine to cool down. Add coolant to
reservoir bottle if required.
15. Re-start the engine and allow it to run for another 15 minutes. After 15
minutes, shutoff the engine and allow the exhaust pipe to cool.
16. Remove and discard the spark plugs. Install new spark plugs into the engine.
Obtain two more new spark plugs and install them into the spark plug holders
or storage bag.
17. Inspect the ski wear bars/carbides. Now is the time to replace the wear bars
if damage if found or carbides are worn.
18. Add Carbon Clean to the fuel tank.
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NOTICE
NOTICE
of the engine.