Servicing my YM 1600

   / Servicing my YM 1600 #1  

Spectre07

New member
Joined
Sep 27, 2025
Messages
1
Tractor
YM 1600
New to working on tractor. What is the purpose of two oil fill ports on the valve cover and a third on the assesory cover on my YM 1600? I figured they must use this valve cover for other applications so I change the oil today using the fill port on the assessory cover, then cleaned the tractor. When I started it, I found an oil leak from my valve cover gasket, and it was definitely not fresh oil. Is it just a couple ounces of old oil that didn't drain out of the valve cover, or is there another oil reservoir I need to attend to?
 
   / Servicing my YM 1600 #2  
New to working on tractor. What is the purpose of two oil fill ports on the valve cover and a third on the assesory cover on my YM 1600? I figured they must use this valve cover for other applications so I change the oil today using the fill port on the assessory cover, then cleaned the tractor. When I started it, I found an oil leak from my valve cover gasket, and it was definitely not fresh oil. Is it just a couple ounces of old oil that didn't drain out of the valve cover, or is there another oil reservoir I need to attend to?
Please re-post you question in the pre-Y2K (year 2000) Yanmar tractor section found here,
 

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