Polaris Ace 150 EFI Owner's Manual
![Polaris Ace 150 EFI manual cover](/images/6968cdb4803ae80ba3e44e3d/thumbs/thumb175x175.webp)
To perform an oil change on the Polaris Ace 150 EFI, first ensure the vehicle is on a level surface. Remove the oil fill cap, then place a drain pan under the engine and remove the drain plug. Allow the oil to fully drain, replace the drain plug, and fill the engine with the recommended oil type and amount.
If the engine is hard to start, check the battery connections for corrosion and ensure they are tight. Examine the spark plug for wear and replace if necessary. Verify the fuel level and quality, and ensure the choke is functioning correctly.
Start by inspecting the fuses and replacing any that are blown. Check the battery voltage and connections. Inspect wiring for any visible damage or loose connections. If issues persist, refer to the service manual or consult a professional.
The recommended tire pressure for the Polaris Ace 150 EFI is typically around 5 psi for both front and rear tires. Always check the sidewall of your tire or the owner's manual for the exact specifications.
To clean the air filter, remove the seat and access the air filter cover. Remove the filter and clean it with a mild detergent and water. Allow it to dry completely before reinstalling. Do not use compressed air, as it may damage the filter.
Regular maintenance includes checking and changing the oil, inspecting and cleaning the air filter, checking tire pressure, inspecting brakes and suspension, and ensuring all bolts and nuts are tight. Regularly inspect and lubricate moving parts.
To adjust the chain tension, first loosen the rear axle nuts. Adjust the tensioner bolts evenly on both sides until the chain has about 1/2 inch of slack. Retighten the axle nuts and ensure the rear wheel is aligned properly.
Excessive vibration may be caused by misaligned wheels, uneven tire wear, or loose bolts. Inspect the tires for wear and ensure they are properly inflated. Check all bolts and nuts for tightness and inspect the suspension components.
For winter storage, clean the ATV thoroughly, change the oil, and add a fuel stabilizer to the gas tank. Disconnect the battery and store it in a cool, dry place. Inflate the tires to the recommended pressure and cover the vehicle to protect it from dust and moisture.
The Polaris Ace 150 EFI is designed to run on unleaded gasoline with a minimum octane rating of 87. Avoid using fuel with more than 10% ethanol, as it can cause engine performance issues.