The Zenoah G300PUM is the brand new, 2 Cycle Piston Valve Gas Marine Engine and features an all-new cylinder design with 4 x transfer ports for improved torque & high-RPM performance. Includes a 1mm stroker crank, Big Bore WT-1048 carburetor and Zenoah EZ Starter (reduces recoil torque).
- Includes Bonzi Very Cool water jacket, Billet Velocity Stack, Zero Drag seals, WT257/1027 carb, stainless steel hardware and upgraded NGK CMR7H spark plug.
The BZx4 Ultra Engine Modification includes the Zenoah G300PUM. Adds an approximate 10-15+MPH increase over the stock Zenoah Proven performance and reliability.
– actual performance based on your boat, prop, pipe, weight, etc.
Includes: BONZI BZX4 RACE ENGINE: raised exhaust timing and enlarged exhaust port, port matched intake manifold, machined lightened and top relieved piston, two oil grooves for lubrication at high RPM, increased intake volume in jug, modified flow direction, jug base machined for increased compression, zero drag seals, Walbro WT-257/1027 big bore carb, BONZI “Very Cool” Water Jacket, Stainless Hardware Kit and BONZI carb velocity stack and NGK CMR7H spark plug!
6.0HP@16,800RPM
Contact us with any questions.
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