Ebay offers 25.4cc Gas Top Handle Chainsaw for $104.99 (reg $166.65) with free shipping.

Product Description:
The split-type brake is easy to operate, making it easier to disassemble the guide chain and save effort.
After structural optimization, the invalid cutting size is effectively shortened, the effective cutting size is increased, and the maximum cutting diameter is increased.
Fuel mixture ratio: 25:1 or 30:1 at the first 5-6 full tanks of fuel.
After chainsaw is breaking in, I recommend 50:1. 

• Portable
• Lightweight
• Easy to Start
• Reliable And Fuel-Efficient