Merc Blackmax

[Mattb73]

Hey y’all new to the forum, buying my first boat this weekend. It’s not much but it floats and will be something for me to learn on. It’s a ‘88 Skeeter Starfire with a 89’ 175 Blackmax that needs some work. I was wondering if anyone can point me in the right direction for some literature on the motor as I am having some trouble finding much info (probably because it’s 33yrs old). After I figure out the low compression issue in cylinder #5, I plan to rip out the oil injection. Just wondering if I can pick someone’s brain for the do’s and don’ts on this motor to keep it running until I can get something newer. I’m a gear head and I love to rip into things, for all I know this thing may have a hole in the block and it’s a paperweight.

Thanks in advance, stay safe and have fun.

[acesover]

It will help you to receive faster, and more accurate responses if you will post your questions in the appropriate forum:

Mercury Motors (this forum)
TWO STROKE models (Less than 135 hp).

Mercury - 2.0/ 2.4/ 2.5 Liter High Performance
For discussions related to 2.0/ 2.4/ 2.5L Two Stroke motors (Carb, EFI, Optimax or Racing).

Mercury - 3 Liter & 3 Liter High Performance
For discussions related to 3L Two Stroke motors (XS, ProXS Optimax, EFI, or Racing)

Mercury - 4 Stroke / Verado
For discussions related to ALL Mercury 4 Stroke Engines.

For fastest/most-accurate assistance, please choose the correct forum.

Thanks!

[EuropeanAM]

Welcome to BBC!

Moving your post over to the 2.0/2.4/2.5L forum.

I would suggest providing the engine serial number, and then obtaining an OEM Mercury Service Manual as the two most important steps.