Zenoah G290RC 29cc 4-Bolt 2-Stroke RC Engine with Walbro WT-990 Carburettor 966669901

The Zenoah G290RC is the flagship engine in Zenoah's renowned RC engine range, delivering outstanding torque, durability and performance for demanding 1/5 scale RC vehicles. Featuring a completely redesigned cylinder, crankcase, crankshaft and piston, the G290RC produces up to 2.68hp while retaining the same compact external dimensions as earlier G230RC, G240RC, G260RC and G270RC engines.

A revolutionary four-bolt closed-deck cylinder design, reinforced crankcase and Walbro WT-990 performance carburettor combine to deliver exceptional throttle response, improved reliability and increased power, making the G290RC an ideal upgrade for racing and large-scale bashing.

Features

• High-performance 28.5cc (29cc class) air-cooled two-stroke petrol engine
• Produces up to 2.68hp (2.0kW)
• Latest-generation four-bolt cylinder design for improved strength and sealing
• Closed-deck transfer port cylinder with removable covers
• Redesigned crankcase, crankshaft and piston for improved durability
• Walbro WT-990 performance carburettor for responsive fuel delivery
• Additional crankshaft support bearing on the clutch side
• Maintains the same mounting dimensions as earlier Zenoah RC engines
• Suitable for racing, high-performance builds and large-scale RC vehicles
• Recoil pull-start system

Specifications

• Brand: Zenoah
• Model: G290RC
• Manufacturer Part Number: 966669901
• Engine Type: Air-cooled two-stroke petrol engine
• Vehicle Scale: 1/5
• Displacement: 28.5cc
• Nominal Class: 29cc
• Bore: 36mm
• Stroke: 28mm
• Maximum Power: 2.68hp (2.0kW)
• Cylinder Design: Four-bolt closed-deck transfer port
• Carburettor: Walbro WT-990
• Ignition System: Electronic (TCI)
• Starting System: Recoil pull starter
• Spark Plug: NGK CMR7H
• Standard Clutch Engagement: Approximately 6000 RPM
• Recommended Petrol: Premium unleaded, 95 RON or higher
• Recommended Fuel-to-Oil Ratio: 25:1 to 40:1 depending on oil manufacturer and engine application
• Dimensions: Approximately 166 × 205 × 196mm
• Weight: Approximately 2.1kg

Compatibility

• Compatible with many 1/5 scale RC vehicles designed for Zenoah-style engines
• HPI Baja 5B
• HPI Baja 5T
• HPI Baja 5SC
• Losi 5IVE-T (vehicle-specific mounting components may be required)
• Losi DBXL (vehicle-specific mounting components may be required)
• TLR 5IVE-B (appropriate clutch mount and flywheel cover required)

Includes

• 1 × Zenoah G290RC four-bolt petrol engine
• 1 × Walbro WT-990 carburettor
• 1 × Recoil starter assembly
• 1 × NGK CMR7H spark plug and cap

FAQ

What is the advantage of the new four-bolt cylinder? The redesigned four-bolt closed-deck cylinder provides improved rigidity, better sealing and increased reliability compared to earlier two-bolt engine designs.

How much more powerful is the G290RC than the G270RC? The G290RC produces up to 2.68hp compared with approximately 2.49hp from the G270RC, while also delivering noticeably stronger low-end and mid-range torque.

Does the G290RC fit where earlier Zenoah RC engines were used? Yes. The G290RC retains the same external mounting dimensions as previous Zenoah G230RC, G240RC, G260RC and G270RC engines, although some vehicles may require model-specific installation hardware.

Is the Walbro WT-990 carburettor suitable for performance applications? Yes. The WT-990 is a popular performance carburettor that provides excellent throttle response and independent high- and low-speed mixture adjustment.

Important Notes

• Use only correctly mixed two-stroke petrol fuel.
• Recommended fuel is premium unleaded petrol (95 RON or higher).
• Follow the engine break-in procedure and oil manufacturer's recommended fuel ratio.
• Some vehicle installations may require model-specific clutch mounts, flywheel covers or spacers.
• Air filter, exhaust system or clutch components may vary depending on the supplied engine package.
• Final carburettor tuning should always be completed after installation to suit fuel, exhaust, air filter and local operating conditions.