Table of Contents
Where is the temperature sensor on a Polaris Sportsman?
Replacement water temp sensor for most 500 EFI Polaris Sportsman’s. This sensor is located on the left side of the engine on the head.
Why is my Polaris running hot?
A clogged or dirty radiator or radiator screen is likely the number one cause of overheating ATVs. The radiator fins may also get clogged with dirt, creating an insulating layer between the hot metal and the cool air.
Does a Polaris Sportsman have a thermostat?
This unit drops in just like stock and actually keeps your engine running cooler as it opens approximately 10 degrees sooner than the stock thermostat. Replaces Polaris part number 3084940 for all Sportsman 500’s.
How hot should a Polaris 450 run?
With a temp gauge this is about 150 degrees. Without a temp gauge, the engine or radiator should be hot enough that you don’t want to touch it for more than a few seconds.
What kind of coolant does a Polaris Sportsman use?
The Polaris branded coolant is supposed to be a 60/40 mixture, and that ratio is recommended. But in the service manual it also states that the 50/50 mix is acceptable. The premix has distilled water that is better for the cooling system.
How do I stop my ATV from overheating?
Tips for Keeping Your ATV Cool in Hot Weather
- Make Sure You Have Enough Coolant in The Radiator. The cooling system is often overlooked in an ATV.
- Inspect Your Radiator Frequently for Damage.
- Air-Cooled Idling.
- Install a High-Pressure Radiator Cap.
- Digital Radiator Fan.
- Recovery Tank.
- After Market Water Pump and Impeller.
How do you bleed ATV coolant?
Drain your coolant and then fill with one quart white vinegar and one quart of distilled water. Bleed the air out with the lower bleed screw and then start the engine and bleed using the top screw. Let the engine get warm and shut it off and cool some.
Do four wheelers have thermostats?
The vehicle’s thermostat controls the flow of coolant to the engine. If you get too much flow, your ATV may not warm up properly.
What temp should Polaris general run?
It is normal for Polaris vehicles to run up to 204-208 degrees and then the fan cools it back down usually in the mid 180’s. Tthe fan will run a lot in warm weather at low speeds or high speeds.