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2 Stroke Race Kart Engine Rebuild Services

Go Kart Racing
Complete Rebuild 2 Stroke

Complete Engine Rebuild

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Includes

  • Full disassembly of the engine

  • Thorough cleaning of all parts

  • Inspection of all components to ensure compliance with manufacturer specifications

  • Replacement of all gaskets, O-rings, copper/aluminum washers, and oil seals

  • Replacement of all necessary springs, screws, woodruff keys, lock washers, dowel pins, and circlips

  • Replacing the Crankshaft Main Bearings

  • Crankshaft Rebuild ( Pin, Bearing & Thrust Washers)

  • Cylinder Honing to next size*

  • Setting of squish gap and ring end gap

  • Setting of static ignition timing

  • Rebuild Carburetor

  • Replace reed petals

  • Full engine reassembly using manufacturer torque specifications

  • Leak-down test prior to shipment to ensure functionality

Labor

  • TAG - Complete Rebuild starts at $600

  • Shifter - Complete Rebuild starts at $900

  • Blueprints & Race Prep starts at $450

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* Honing on our Sunnen Honing Machine With Dedicated 2 Stroke Mandrels and Stones

Top End 2 Stroke

Top End Rebuild

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Includes

  • Disassembly of Top End

  • Inspection of the entire Top End Assembly

  • Cylinder Honing to the next size*

  • Set of Ring End Gap

  • Set Squish Gap

  • Assembly of Top End

  • Checking the Ignition Timing (static)

  • Carburetor Service

  • Starter Assembly Service

  • Clutch Service

  • Inspection of Reed-Valve Assembly (if necessery)

  • Cleaning of Exhaust Power Valve (if necessery)

​​Labor

  • Top End Rebuild starts at $350

  • Blueprints & Race Prep starts at $300

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Please note that we do not perform partial rebuilds (e.g., top-end only) on motors that we did not originally build. Our policy requires that any used motor not previously built by Motomonk undergo a full rebuild.

This approach ensures that we have a complete understanding of the engine’s condition and history, allowing us to establish a reliable baseline for future maintenance. 

* Honing on our Sunnen Honing Machine With Dedicated 2 Stroke Mandrels and Stones

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