This service is to overhaul your 250cc fourstroke motocross engine with a Vertex rebuild kit. During the process your engine is stripped, cleaned and looked over for damage or worn parts. The price includes labour and all parts listed below. With the 4 stroke engine its hard to say what parts it will need without the engine being checked over first. If you are looking for complete peice of mind, especially if you dont know when any of the parts were last changed, select the full rebuild option. 


Basic Rebuild Option:


- Vertex Piston

- Vertex Gasket kit

- Vertex Seal kit


Full Rebuild Option:


- Vertex Piston

- Vertex Con Rod

- ProX Intake and Exhaust Valve and spring kit (Stainless steel)

- OEM or Vertex Cam Chain

- Koya Main bearings

- Vertex gaskets and seals


During full rebuild crankshaft is rebuild and trued to under 0.02mm and valve seats are machine cut.


Please keep in mind that other parts may need replaced or repaired, these could include your cylinder, clutch components, transmission bearings or gears.

250cc 4T Vertex Engine Rebuild

SKU: 11