Walbro WT-1107 high-performance carburetor. 

This is the stock carburetor used for the G320RC engine, and will also work on other Zenoah/CY engine applications.

Carburetor specs: Walbro WT-1107. 15.88mm bore, 13.5mm venturi, independent tunable high and low speed jets.

Note: This is a butterfly style carburetor with choke, but the carb does not include the plastic choke lever. That item is sold separately, see item av48x ( plastic choke lever) in the "related items" at the bottom of this page.

Zenoah part# 585727601