The Zenoah G230RC engine is a 22.5cc (32mm bore, 28mm stroke) performance machine. The engine features a stronger intake manifold for better thermal isolation, a red silicone spark plug cap, new blue gaskets, wider intake and exhaust ports, a lighter 32mm piston and thinner ring for reduced reciprocating mass, and improved transfer port matching between cases and cylinder.
 
This engine offers serious performance. It features a 4 transfer port 32mm cylinder, Walbro WT-603 carburetor (15.88mm bore, 12.7mm venturi, independent high and low jets) in your choice of linkage configuration, lighter flywheel, re-designed "hemi"-style combustion chamber, and full-circle crankshaft.
 
Includes 54mm inner clutch assembly preinstalled plus installation instructions.