A simple procedure covered in the manual. 5th star will depend on its longevity. I will report back later on how that works out. There are some important limitations. Nevertheless, this saw is fun to use.
Ridgeyard 52cc Pro Features & Specs
Heavy duty forged crankshaft for maximum strength and durability
Low vibration design makes the operation comfortable and reduces noise greatly
Combined start/stop switch make the chainsaw very easy and smooth to start
The cleaning air-intake system can efficiently prevent the dust and debris entering into the engine
Ideal for tree pruning,land cleaning,firewood cutting, storm clean-up and so on
Editor's Impressions Of The Ridgeyard 52cc Pro
Tool Motor Power
Value For Money
Ridgeyard 52cc Pro Final Thoughts
"Yes, gas is better."
You can use any newer Ridgeyard 18v battery. Be sure to grease the end of the bar. I found the starting instructions superfluous. Chain is easy to put on and tighten. The first job was a trash palm tree.