Product Installation Instructions for GY6 152QMI 157QMJ 200cc 63mm 2V Piston Kit

Tools Required:

1. Socket wrench set
2. Torque wrench
3. Screwdriver set (flathead and Phillips)
4. Piston ring compressor
5. Gasket scraper
   6.Clean cloths or rags
6. Oil to lubricate components
7. Engine assembly grease (optional)
8. Safety goggles
9. Work gloves

Installation Steps:

1. Preparation:

   • Ensure you have all the necessary tools mentioned above.
   • Park your ATV on a flat and stable surface.
   • Disconnect the battery to prevent any electrical shorts.

2. Remove the Existing Piston:

   • Drain the engine oil and coolant.
   • Remove the engine cover and any components obstructing access to the cylinder head.
   • Detach the cylinder head by removing the bolts with a socket wrench.
   • Gently lift off the cylinder head and set aside.
   • Use the piston ring compressor to compress the piston rings for removal.
   • Carefully remove the connecting rod bolts and remove the old piston from the cylinder.

3. Clean the Surface:

   • Scrape off the old gasket material from the cylinder and cylinder head with a gasket scraper.
   • Wipe down the surfaces with clean cloths to remove any debris and oil.

4. Install the New Piston:

   • Lubricate the piston rings with oil before installation.
   • Insert the new piston (63mm 2V) into the cylinder using the piston ring compressor.
   • Ensure the piston is oriented correctly with the arrow pointing towards the intake side.
   • Reattach the connecting rod bolts and torque them to the manufacturer's specifications.

5. Reassemble the Cylinder Head:

   • Place a new gasket on the cylinder and carefully set the cylinder head back in place.
   • Tighten the cylinder head bolts in a crisscross pattern to ensure even pressure.
   • Refer to the manufacturer’s torque specifications for proper tightening.

6. Final Checks:

   • Reinstall any components you removed to access the cylinder head.
   • Reconnect the battery and refill engine oil and coolant.
   • Start the engine and check for any leaks.

Conclusion:
Your new GY6 152QMI 157QMJ 200cc 63mm 2V Piston Kit is now installed and ready to enhance the performance of your ATV. Always consult your ATV's service manual for specific instructions related to your model.