CRF300 SSS STAGE 3.25 BIG BORE KIT 325CC DEVELOPED FOR AUSTRALIAN FUELS ⛽️

CRF300 SSS STAGE 3.25 BIG BORE KIT 325CC DEVELOPED FOR AUSTRALIAN FUELS ⛽️SSS Stage 3. 25 325cc Big Bore Kit (CRF300 Performance Upgrade) DESIGNED FOR AUSTRALIAN FUEL QUALITY. Take your CRF300 to the next level with the SSS Stage 3. 25 325cc Big Bore Kit. Includes resleeved cylinder, 81mm piston, ECU reflash, Velocity intake stack, twin snorkel, and airbox vent. Available in 32HP or 34HP with adjustable camshafts. In stock now ready for delivery. Kit Contents 1 81mm Piston Kit (piston, rings, pin & clips) 1 SSS Velocity

SSS Stage 3.25 – 325cc Big Bore Kit (CRF300 Performance Upgrade) 

DESIGNED FOR AUSTRALIAN FUEL QUALITY. 

Take your CRF300 to the next level with the SSS Stage 3.25 325cc Big Bore Kit. Includes resleeved cylinder, 81mm piston, ECU reflash, Velocity intake stack, twin snorkel, and airbox vent. Available in 32HP or 34HP with adjustable camshafts. In stock now – ready for delivery.

Kit Contents

1 × 81mm Piston Kit (piston, rings, pin & clips)

1 × SSS Velocity Intake Stack

1 × Second Intake Snorkel

1 × Twin Air Airbox Vent (lid)

1 × SSS ECU Reflash – Stage 3.25 Mapping

1 × SSS Resleeved Big Bore Cylinder

1 × Top-End Gasket Kit

Availability

In Stock – Ready for Delivery

Orders via website only

No phone sales

Power Options

32HP Version: Big bore cylinder, ECU mapping, Velocity intake stack, 2nd snorkel, airbox vent

34HP Version: Adjustable camshafts, big bore cylinder, ECU mapping, Velocity intake stack, 2nd snorkel, airbox vent

Camshaft link below 

https://sssmotorcycles.com/collections/crf300-performance-parts/products/sss-stage-3-5-camshaft-set

Exchange / Core Options

Core Deposit Option: Receive kit immediately, send back original cylinder & ECU for deposit refund

No Core Deposit Option: Send your cylinder & ECU for machining and ECU flash

Buy New: New cylinder & ECU available without exchange

📦 Shipping/Return Address:

SSS Motorcycles

1/22 Macintosh Street

Tamworth NSW 2340

Australia

Installation & Safety Guidelines

Lubrication During Assembly:

Use WD-40 or a very light machine oil for piston installation this is very important to obtain piston ring sealing. Low tension oil control rings. 

Do not use synthetic or high-viscosity oils – may cause temporary oil consumption during run in or assembly. After 1000km no problem. 

Pre-Start Procedure:

Leave spark plug out after assembly

Turn engine over with starter motor in 10-second intervals

Repeat multiple times while monitoring starter motor temperature

Disassembly & Torque:

Follow Honda Genuine Workshop Manual for all disassembly, assembly, and torque specifications

Incorrect torque may cause engine damage or reduced reliability

Professional Installation Required:

Kit intended for licensed, experienced motorcycle mechanics only

SSS Motorcycles accepts no liability for damage caused by improper installation, lubrication, or mechanical inexperience or damage from poor fuel quality or over heating. 

6 months warranty available if installation is preformed by SSS MOTORCYCLES. 

Australian Consumer Law Notice:

Statutory rights under ACL are retained

Liability limited to repair or replacement of the product only. No labour costs. 

 Please note if engine light is on after installation please cycle key 3 times. Check out our YouTube channel for video. Crf300 engine light. 

Warranty Policy

https://cdn.shopify.com/s/files/1/0595/8628/1562/files/SSS_Motorcycles_Warranty_Policy_FINAL.pdf?v=1762165796