1986 75hp Mariner 4 cylinder

robert.massengale · #1 August 1st, 2006, 02:05 PM

I would like to establish a discussion group about the 75 hp mariner 4 cylinder. If anyone has this same motor and would like to get into a discussion on an ongoing basis please let me know your email. robert.massengale@gmail.com

Thanksd

mikael.block · #2 August 11th, 2006, 08:31 AM

hi robert

I have a marina 1984 75hp..

I think it is great to help and share knowlegde...

I'm in.

Mikael

dinikin · #3 August 5th, 2007, 02:05 AM

What's the diffirence with Merc.

great_lakes_dan · #4 May 30th, 2008, 03:58 PM

Quote:

Originally Posted by robert.massengale

I would like to establish a discussion group about the 75 hp mariner 4 cylinder. If anyone has this same motor and would like to get into a discussion on an ongoing basis please let me know your email. robert.massengale@gmail.com

Thanksd

HI
I have a 75 Hp Mariner. 4 cylinder 2 stroker. 86ish. I just put out a Thread on it. with Spark but not firing on Cylinder 2.
my Email address is
dsolovy@comcast.net

Thanks
Dan~ MIchigan

coyedsel · #5 May 30th, 2008, 08:30 PM

86, 75HP Mariner. No spark to 1&2 cyl. Have not determined cause. Just started working on problem

melhxi · #6 June 30th, 2009, 11:38 PM

I just purchased a used boat with a 1986 Mariner 4cyl 2stroke. I changed the impeller and all went well until I tried to get the lower unit back in. It stops solid with about a 1" gap between the machined surfaces of the upper and lower units. I've tried every trick to ensure things are aligned but I can't budge the LU closer than the 1" gap. Any one solve a similar problem?

al9981 · #7 July 6th, 2009, 05:29 PM

I have a 86ish 75hp Mariner 4 cy as well. It had been seatting for 7 years and it fired right up. I had to change the impeller on it and that s it.
melhxi:You may have to wiggle the prop to get the spline on the drive shaft to engage.good luck

rcmickey · #8 July 9th, 2009, 05:48 PM

Yo! I have a 91 Mariner 100HP. I understand they are pretty closely related. I'm in the process of installing a new impeller and kit. I just got it with a PrinceCraft I bought.

Jim Lockwood · #9 August 18th, 2009, 05:49 PM

Hello All,

I have a 1986 Mariner 75Hp and have just encountered a problem recently; the mortor has always ran great and then one day I went to start it and it took the choke to get it started (after it was warm already) and high throttle to keep it running. It will not idle and when I go to put it into gear real fast it dies. Any thoughts? It does not smoke but very little which is not the norm. It has a oil injection poly bottle in the battery compartment but I think it's mixing ok. I was told to cut that thing loose and mix directly into the fuel tank. can you confirm this?

Thanks,

Jim