Zenoah G300PUM Marine engine with Walbro WT1048

Zenoah G300PUM Marine engine Introduced in 2012 – New Zenoah G300PUM engine – 29.5cc (36mm bore, 28mm stroke) – Available with Bonzi choice of water jacket colors  1mm stroker crankshaft Big Bore WT-1048  Zenoah EZ starter Engine Stats: Displacement: 29.5cc. Power: 3.7HP @13,000 RPM Torque: 1.23 ft-lbs (1.68 N-m) @10,000 RPM Timing:30 degrees BTDC @ 8,000 RPM Compression Ratio: 8.9:1 Fuel: 89 U.S. or 91 octane (using the R M/2 octane rating method) or higher mixed 25:1 with 2-stroke oil.