Zenaoah G260PUM with BZx2 Race Modification. Adds an approximate 8-10MPH increase over the stock Zenoah G260PUM engine.
Advanced exhaust timing, flow port exhaust, advanced intake timing, flow port intake, piston clearance mod, 2 oil groves cut into piston, port matched case & jug.
All BONZI' modified engines are custom-built and therefore will take up to one (1) week from time of order to time of shipment. Contact us with any questions.
Add "Very Cool" Water Jacket:
Add BONZI' Break-In Oil:
Aluminum Velocity Stack:
Drill & Tap for Water Pump:
Upgrade to WT-257 Carb:
Upgrade to WT-813A Carb: