Zenoah: G290RC 3.5 HP Engine (4-Bolt Topend)

The Zenoah G290RC Engine is available with your choice of factory R/C carb linkage, or Goped Carb Linkage (includes additional bracket, swivel, and spring for connection to throttle cable). The engine is available with our without a 54mm clutch.

This engine is the most popular selling engine at DDM. With a displacement of 28.5cc (36mm bore 28mm stroke) it is the most powerful engine Zenoah makes in the smaller crankcase size. This engine is the most popular choice among Go-Ped riders because it is a direct fit to many popular models including the Sport, X-Ped, Bigfoot, Super Go-Quad30 GSR Cruisers and GSR Sports. It can be used in place of the factory G23LH and GPL290 engines and the performance increase will be immediately noticeable. Legendary reliability and ease of use are what you get with Zenoah engines.

For use in RC models this is a popular choice among 1/5 RC models from HPI, Losi and FG. This will also fit most other 1/5 models including Redcat, Maverick, KingMotors/Rovan, Duratrax and others.

This engine is the evolution of the RC style engines first introduced with the G230RC. This engine features a four bolt cylinder. This means that the cylinder attaches to the crankcase with four bolts instead of the older two-bolt style. This increases the durability of the cylinder and reduces head gasket failures. Four transfer ports manage air/fuel through the engine. The fueling is managed through the Walbro WT-990 carb - this is Walbro's best carburetor available. With high and low speed needles that can be adjusted you will be able to dial in perfect performance. With the higher output of this engine it also has three crankshaft bearings, with a sealed outer bearing supporting a full-circle high performance crankshaft.

For those wishing to increase the output of their G290RC engine DDM offers a variety of upgraded/modified components from ESP (EarthSurfer Performance) that can gain more RPM and horsepower.

See "Details" tab for more information about installation to your specific application

Cylinder displacement 28.5 cm³
Cylinder bore: 36 mm
Cylinder stroke: 28 mm
Compression Ratio: 8.9:1
Fuel: 91 octane (using the R+M/2 octane rating method) or higher mixed 25:1 with 2-stroke oil
Start system Recoil starter
Spark plug: NGK CMR7H
Carburetor: WT-990

Dimensions
Weight 2.1 kg
Product size length 16.6 cm
Product size width 20.5 cm
Product size height 19.6 cm