Zenoah G260PUM engine with a BZ1 Mild Modification. Adds an approximate 5MPH increase over the stock Zenoah G260PUM.
Advanced exhaust timing, flow port exhaust, flow port intake, piston clearance mod & 2 oil groves cut into piston.
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: