Mariner 90 hp issues

maximmm

Recruit
Joined
Nov 20, 2007
Messages
2
Hi all
I'm buying a 2nd hand boat tomorrow that has an (Australian) Mariner 90 hp on the back. Well I'm a little worried about the motor and wanted some advice please?
First off, the engine seems to run rather roughly (ok then appears to cough then ok and so on). When I pulled the spark plugs, they were covered in black particles and oil that were easily wiped off if that means anything.

Second, the engine tilts just fine but the actual tilt cylinder appears to be very oily? If I tilt the motor up and push hard on the leg, the tilt doesn't budge so I think the pressure's ok.

Third, the motor looks pretty new but on the head there's 1987 printed - the motor's an oil-injected 2 stroke that looks brand new so could the motor be this old??
Cheers for any help you can offer.
Maximmm
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: Mariner 90 hp issues

Is it a 3 cyl engine, we really could use a serial number can tell much from the desciption
 

maximmm

Recruit
Joined
Nov 20, 2007
Messages
2
Re: Mariner 90 hp issues

Sorry, yes it's a 3 cylinder one. Not sure of serial no as boat now in getting brakes fitted.
Will ask again when I've more info.
 
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