GY6 Engine, 150cc

Out of stock
  • Complete Engine & Transmission
  • High-flow 27/24 Valves
  • 57.4mm Bore
  • 8-Pole Stator
  • $795.00
Market price: $849.00, you save $54.00
  • 6% less
  • Weight
    65 lbs
  • SKU

Arrives with Large Valves Installed

The large 27mm/24mm valves allow the engine to breathe better at high RPM, allowing for higher top speeds. This is a very noticeable improvement if your original engine came with the smaller 24/23 valves.

Also includes STAGE 1 Electrical Upgrade

This engine comes from the factory with our S1 Electrical package, which generates more electrical power for lighting and charging the battery more rapidly.


Frequently asked questions are answered here.

60 Day Parts Warranty

Please read the Warranty details in the right-side column.

No returns on engines.

Engine is shipped DRY with no oil.

Be sure to add 750ml of 10w40 to the crankcase and 120ml of 80w90 to the gearcase before starting.

What's included:

Everything under the engine's covers and plastics is included and installed, this is a complete unit. Starter, stator, and intake manifold arrive bolted to engine. CVT transmission is fully assembled and cover installed. All transmission components are assembled and cover installed. All drain bolts and internal oil screen are installed. Valve cover installed.

Sold separately:

Carburetor, exhaust, ignition components and charging parts are all sold separately.

Remember to adjust valves after break-in period.