I got the oil extractor from Northern Tools for $12 and the oil syringe off Amazon for $13. Now I don't have to lean my bike over an oil pan to change oil. The extractor works great on my Robin Sabaru EHO 35 engine. Changing oil every 50 hours just got a lot easier.
After extracting the oil I fill the engine oil chamber half way up with Sea Foam. Then with the kill switch off I pull the start cord several times. After that I let it set for about 30 minutes then extract the Sea Foam. Then I put in the engine 100 cc of Quaker State Ultimate Durability Full Synthetic 10W-30 motor oil. It's very important you put in the exact amount of oil recommend for the engine. The oil syringe makes that easy to do.
The RS 35 are known for having really long lives as long as you clean the air filter every 10 hours and change the oil every 50 hours.
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