Isolate and block the line from the raw water pump and the lines to the manifolds. Drain the block and heads of water, and pressurize to 15psi. It should hold pressure forever. If you loose pressure, listen for the hissing. That is your leak
on ignition systems..... NO.
all 12 volt batteries are about 12.7 volts fully charged and 12.0 volts discharged (below 12 volts just kills them)
as others mentioned.
Never use a cranking battery for a deep cycle application and never use a deep cycle battery for a cranking application.
welcome aboard
do you have paperwork (bill of sale and signed title/registration)? if not check with your local AHJ (Authority Having Jurisdiction.)
you may not be able to register it in your location without proper paperwork
first, welcome aboard
all the motor information and the motor to gauge/controls wiring is in the engine technical service manuals
most boat companies do not document any wiring or other systems
there is no money to be made by documenting the boat that will be replaced within 10-15 years...
First, welcome aboard
second, pressure test the cooling water jacket to 15 psi. (involves blocking off the lines to the manifolds and the one from the transom shield). does the block itself hold 15 psi? yes or no
if no, listen for the hissing and find out why.
since you didnt state which...
These 2 particular boats were designed to be cheap and last about 10 years and be replaced. Yes, only 10 years. The one boat is 33, the other is 35.
You can pull tubes behind a rowboat with a 20hp or a pontoon boat or a jet ski or any other boat.
Pulling a skier will depend on which motor...
Change oil. Launch boat. Run it hard for an hour minimum.
My guess is you are putting around at slow speed in cold temps. You need to get oil temp over 210F to vaporize the condensation
