16615-ZE2-810 - ​​​​​​Return Spring inside the choke body on a Honda GX390 engine for a Rayco RG13 Stumpgrinder

This spring helps control the choke on the Honda GX390 engines, 

Sometimes a new choke kit is require, which is part number 16044-ZE3-W20

It does fit most models, but if your unsure or would like us to check, please get in touch and provide the engine serial number and model number.