• Comes with Upgraded Transmission for Better Power Transfer to the Wheels:

This is not a stock scooter engine.  It comes with the 1500 PRM Spring and 12 gram rollers, performance variator and high stall clutch.  You will not find this engine anywhere else.

We can customize this engine any way that you desire.  Call us and let us know what you want.  

We can even convert your new 150cc engine into a 175 or 184cc racing engine:

MORE CC MEANS MORE POWER

Read our article on how displacement relates to more power.
How big bore kits & strokers work

We can also convert this 150cc engine into a 175cc or 184cc racing engine for your vehicle. To see more on converting this new engine to a 175cc or 184cc racing engine please see:

175CC racing engine

184cc racing engine

TAKE A LOOK AT THIS COMPARISON

Stock GY6 Hill Climb

BDX 184cc GY6 Hill Climb

** THIS IS THE LONG CASE SCOOTER ENGINE **

Be sure to read our article on how displacement affects your power.

^{Large Valves for Higher Top-End Power}

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.

^{8-pole charging upgrade}

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.

IMPORTANT NOTES

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.