RichardS
N/A
What a faff to poke a thin pipe down the dip stick hole and use a big "sucker" to get the oil out of the sump.
It doesn't have to be complicated though.
My dipstick tube goes to the bottom of the sump (I assume all Yanmars are the same?) so I just plug my electric pump (like the Lidl one) into the cigarette socket, remove the dipstick, push the sucky pipe over the top of the dipstick pipe, put the end of the outy pipe into an old mineral water bottle and turn on the pump. 30 seconds later it's all over and the water bottle full of oil goes into the marina used oil compound.
No mess, no cleaning, no brainer!
Richard