The Homelite 25, 30, and the little Zenoahs are all the same
http://www.macspro.com/headers_side.asp
<table cellspacing="1" cellpadding="3" border="1"> <tbody> <tr align="center"> <td align="left" valign="top">
Zenoah G-20,G-23,G-26
Homelite 25</td> <td valign="top">4150</td> <td valign="top">4151</td> <td valign="top">4152</td> </tr> </tbody></table>