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YS 120 possible issues

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YS 120 possible issues

Old 04-18-2024, 10:42 AM
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colerc
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Default YS 120 possible issues

Hello all engine dudes. I have received a YS 120 four stroke and I may have run problems. I cleaned up this engine and found it to have great compression. I took off all the plastic parts and cooked in antifreeze. Cleaned up very nice. However when I took off the fuel regulator and set aside. I noticed the diagram to be deformed and not flat. Will this cause tuning issues?
Old 04-20-2024, 11:30 PM
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tih
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Originally Posted by colerc
However when I took off the fuel regulator and set aside. I noticed the diagram to be deformed and not flat. Will this cause tuning issues?
Probably not, but do put it on the list of spares to buy. A typical overhaul includes bearings, piston ring, and regulator diaphragm.
Old 04-21-2024, 10:04 AM
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Big Alice
 
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Just a FYI. You're in the for sale section.

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