"Hi Folks,
I am completely
"Hi Folks,
I am completely new to the marine scene and I recently purchased a 73 Johnson 25 horse, model# 25R73A as to catch fish where I live in northern Wisconsin. The motor always takes about 6-8 pulls at the start of the day and one pull all day thereafter. That is okay with me and is not a big deal. I changed the spark plugs and the lower unit oil. The lower unit oil was about 20% or so milky color mixed in with grayish black. The motor shifts fine, but I realize that a seal must need to be replaced. I will get to my question(s).
1. On the lower unit oil, I do not have the money to bring it to have it fixed, so I was thinking of just replacing the oil every month or so, always keeping fresh in there. What do you guys think?
2. From what I have heard, most people running these old Johnsons run 36 or 40:1 instead of the 50:1 as to not scorch a cylinder. Sounds like solid advice to me, but what is the consensus here. I realize that I will have to replace plugs more often, but the NGK B8S only costs 2.19 a piece, so no big deal there.
3. The motor sometimes will stall when you idle down right before shifting in gear. Not a big deal as I usually leave it in forward all the time anyway.
Sorry for the long post! Thanks in advance for the help!
Jon"
I am completely
"Hi Folks,
I am completely new to the marine scene and I recently purchased a 73 Johnson 25 horse, model# 25R73A as to catch fish where I live in northern Wisconsin. The motor always takes about 6-8 pulls at the start of the day and one pull all day thereafter. That is okay with me and is not a big deal. I changed the spark plugs and the lower unit oil. The lower unit oil was about 20% or so milky color mixed in with grayish black. The motor shifts fine, but I realize that a seal must need to be replaced. I will get to my question(s).
1. On the lower unit oil, I do not have the money to bring it to have it fixed, so I was thinking of just replacing the oil every month or so, always keeping fresh in there. What do you guys think?
2. From what I have heard, most people running these old Johnsons run 36 or 40:1 instead of the 50:1 as to not scorch a cylinder. Sounds like solid advice to me, but what is the consensus here. I realize that I will have to replace plugs more often, but the NGK B8S only costs 2.19 a piece, so no big deal there.
3. The motor sometimes will stall when you idle down right before shifting in gear. Not a big deal as I usually leave it in forward all the time anyway.
Sorry for the long post! Thanks in advance for the help!
Jon"