This should help
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjv4d7i3c7yAhUbRjABHUhJD-gQFnoECCQQAQ&url=http%3A%2F%2Fengine-manual.com%2Fen%2Findex.php%3Fcontroller%3Dattachment%26id_attachment%3D135&usg=AOvVaw389rInABUISq7vvrp3hv66
I found it by searching volvo...
Thinking the motor might need a valve job with your compression numbers. A new motor would be 150 so with seeing 180 the gauge is probably off. If we reset the 180 to 150 which puts the 150 at 120. In any case there lowest should be no more then 10% from the highest
Before pulling heads it...
Fuel pressure is good but fuel line is dry when motor is shut off when warm. The antisiphon valve is working and fuel is not draining back.
If the above statement is true, then its either the pump or the rubber fuel line is collapsing inside
This is the area with all the controls
https://www.mercruiserparts.com/remote-controls-and-components-1986-th
and this looks like it
https://www.mercruiserparts.com/bam/subassembly/32078/1989/50
HP is High Performance such as X, XR and XZ drives
Your good the regular Merc, VP, OMC bearing will work
Might even find some new old stock (NOS) greaseable bearings (I stll have 2 NOS on the shelf
No
Your mixing 2 cycle and 4 cycle
Need a bit more clarification to make sure what your doing. Reason is because if the boat is a 2016 then the control and wiring will match and should already have a kill switch. Your asking so my guess (using my pea brain) is we are not working on the same...
All of the bearigs are the same for VP, OMC, Indmar, Merc (MR, pre, gen 1 , gen 2, bravo), and only difference is if you have a HP transom assembly.
What is your serial number?
To kill a 2 stroke motor the Magneto is grounded
To kill a 4 stroke motor 12V is removed from the coil
2 stroke
Note the M terminals goes to the Magneto. One of the M's connects to ground. When key is turn OFF it grounds the connection. Same thing happens when the kill switch is pulled
4...
WD40 everything, hope it will displace anything which might cause an issue later. It displaces water and left behind it helps insulate
Just my opinion, others usually differ
A Nooooooooo
Is it a carb (2BBl 4BBL), EFI (TBI, MPI)?
Is it in a truck, a car or a boat?
Does it have points or electronic ignition?
Does it have cable throttle or digital control?
Is this a new to you motor, or new problem?
Again we have NO dang idea what the HE double hocky sticks your...
Don't know first hand, but list its only 4000 lbs dry, so should do ok. Kind of light, my 23ft Rinker is 4300 and I have a single 300hp 7.4
A carry on AC is air cooled and most fit in thru the deck hatch
