Zenoah G260PUM with BZx4 Ultra Modification. Adds an approximate 10+MPH increase over the stock Zenoah G260PUM.

Includes: BZx2 mods plus: port matched intake manifold, lightened piston, increased intake volume in jug, modified flow direction, jug base machined for increased compression, zero drag seals, Walbro WT-257 big bore carb, BONZÍ "Very Cool" Water Jacket, Stainless Hardware Kit and BONZÍ carb velocity stack!

5.5HP@16,800RPM

All BONZÍ 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.