Installation Instructions for 39mm 50cc Cylinder Kit for 50CC 4-Stroke Scooters and Mopeds

Package Contents:

• 39mm Cylinder Kit
• Cylinder Head
  -Piston and Rings
• Gaskets
• Necessary Bolts and Hardware

Tools Required:

1. Socket set (including metric sizes)
2. Torque wrench
3. Screwdrivers (flathead and Phillips)
4. Piston ring compressor (if applicable)
5. Allen wrench set
6. Torque specifications sheet (if available)
7. Clean rags or shop towels
8. Oil for lubrication (motor oil or assembly lube)
9. Safety goggles
10. Optional: a small container for keeping small parts organized

Installation Steps:

1. Preparation:

   • Ensure the scooter or moped is on a stable surface with adequate space to work.
   • Disconnect the battery and remove any body panels that obstruct access to the engine.

2. Remove the Existing Cylinder:

   • Drain any fluids (oil/coolant if applicable) to avoid spills.
   • Detach the exhaust pipe and any components blocking access to the cylinder.
   • Unbolt and carefully remove the old cylinder and head.

3. Clean the Engine Block:

   • Use clean rags to wipe down the engine block where the new cylinder will be installed. Ensure all old gaskets are removed, and the surface is clean.

4. Install the New Gaskets:

   • Place the new gaskets onto the engine block and cylinder head, ensuring proper alignment.

5. Assemble the New Cylinder Kit:

   • If using a piston ring compressor, slide the piston into the cylinder and compress the rings.
   • Insert the piston into the new cylinder, carefully guiding it into place.

6. Install the Cylinder Head:

   • Position the cylinder head onto the new cylinder assembly, aligning it with the gaskets.
   • Secure the cylinder head bolts by hand initially, then use a torque wrench to tighten them to the recommended specifications.

7. Reconnect Components:

   • Reattach the exhaust pipe and any other components that were removed.
   • Check that all bolts and connections are tight.

8. Final Checks:

   • Reinstall any body panels and reconnect the battery.
   • Fill the engine with the appropriate oil and any other fluids needed.

9. Test Run:

   • Start the scooter or moped to ensure the installation was successful.
   • Allow the engine to warm up and check for any leaks or unusual sounds.

Safety Note:
Always wear safety goggles while working on the engine and follow all safety precautions outlined in your vehicle’s service manual.

Enjoy your enhanced riding experience with your new 39mm 50cc Cylinder Kit!