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How to tell Mariner year

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capn_morgan

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"I've notice most brands h

"I've notice most brands have a chart to tell year by model number but I couldn't find anything for Mariner. Anyhoo, could someone tell me what year this 80hp is? A805690
Thanks!"
 
theres a merc serial guide boo

theres a merc serial guide book nla that i have could not find 80hp number starting with letter A
 
"That serial number would be f

"That serial number would be for a 1985/86 model in general, but like above I can't find a listing for an 80 horse in those model years.

Is this a 3 cylinder motor??"
 
"Force controls are usually US

"Force controls are usually US Marine if they were original. They can be adapted to work with a Merc without too much trouble.

Force motors "push" the cables to engage throttle/shift whereas Mercs "pull" the cables. This requires turning the shift cam around on the shifter itself (some disassmebly required)
but they were made to be turned around, so you wouldn't be hurting anything.

US Marine shifters also have "anchor points" to connect the cables for Merc and OMC as well.

You can maintain the original cables as well if they are in good shape, just have to change out the ends (on the motor end). A set of Merc adapter ends will run you about 15 bucks at most marine supply places..."
 
"I have a Mariner 20, #6536120

"I have a Mariner 20, #6536120 How do I find out what year it is? I would like to get a repair manual, but for what years?"
 
"Mark, there is a digit missin

"Mark, there is a digit missing in your number. It breaks down as 653-XXXXX. In any event it will equate out to a 1974-79 Yamaha built Mariner.

So you need the Mariner (not Mercury) manual (selocs) for that time period - all the models were the same so the exact year is not totally important..."
 
"The seller made a mistake wit

"The seller made a mistake with the serial number. It's actually A8056590. He said he thinks it's an '81. Is that correct? It really doesn't look that old, but I'm no outboard expert!"
 
"Thats a <u>4cyl</u> 80hp Mari

"Thats a <u>4cyl</u> 80hp Mariner. You can see it in the pics, and the description on eBay.

Serial number is a bit of an oddball, based on chart listing I have. Older than 1987... newer than 1984.

I'd say Graham is correct, as usual. 1985/6


150986.jpg
"
 
"Yup, I see that fourth plug w

"Yup, I see that fourth plug wire now. Never expected another cylinder down that low. According to NADA there is no 80hp after '83. So is this a decent motor, or would I be better off with a 3cyl OMC 70hp? I'm really sick of premix and wanted an injected motor, but I also need to look at the whole package of value/dollar."
 
"That's a great motor. Th

"That's a great motor. The 4cyl motors were generally quite reliable.

As for the oil injection, that motor uses a boat mounted Autoblend oil system, that is less than stellar in terms of reliability. It also has a boat mounted trim reservoir and pump.

If oil injection is your motivation for considering purchase, you might want to consider one of the models offered that would be a few years newer, and have the oil reservoir and pump mounted under the cowling on the engine. They also have the benefit of having integral power trim. Saves a lot of valuable space on the boat if both of those items can be integral to the motor.

Up to you... that looks to be a motor in good physical condition, cosmetically speaking.

Good luck."
 
"The motor does look decent fr

"The motor does look decent from what you can see of it. The "A" series serials first came out in 1985 (as Merc was making major changes to the motors they produced).

I can't find any listing however in either the US/Canadian/Aussie or Belgian serials for an 80 horse model for that year. Like noted above the 4 cylinders were last produced in 83 as "Mercs" and even earilier dressed as Mariners (??).

In any event, the parts will be the same as 83 and earlier models (for reference purposes).

It's entirely possible that there were a few of these sitting around the Merc factory - got 1985 serials slapped on them and sent out the door (I have dealt with quite a few 9.8 models that came that way, produced at the very end of their production run before the 9.9 was introduced with the "new" serials)."
 
Letter A puts it around '8

Letter A puts it around '85. It looks older that that. They stopped making that 4 cylinder in '83.
More like '77-'80.
 
"Bandit, I agree - that bottom

"Bandit, I agree - that bottom cowl looks 70's...

Where is the serial number from - is it off the engine? powerhead switch??? maybe?"
 
"I bought the motor shown in t

"I bought the motor shown in the pics but, I have a question about the Tilt & Trim & the remote location of the pump. I have a Bass Boat that has very limited space in the rear compartment. Is it possible to fit the newer style mount with the integrated T&T unit on without spending a lot?"
 
"Dean, short answer NO. Anytim

"Dean, short answer NO. Anytime you talk about trim/tilt, especially an entire assembly you are talking 1000 bucks to get you started, unless you want to spend time checking out recyclers."
 
Bought old Mariner 30hp. Seria

Bought old Mariner 30hp. Serial number 68931850. Any idea what year this is? I am sure it will need parts b4 too long and I will need to know this. Any help would be appreciated
 
"Walleye, your serial actually

"Walleye, your serial actually breaks in two sections as "689"-"31850x" which makes it a 1983 "A" model, Yamaha built Mariner - so it's 100% Yamaha (but built for Merc).

Most parts for this model are still available from a Merc dealer. Yamaha also may stock parts for this (depending what they used on their own production motors of the same vintage), and are usually a little cheaper than Merc...."
 
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