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Drain boat gas tank.
Whatever the reason removing fuel from a boat fuel tank is.
When you have a 1 4 tank of old gas adding another 1 4 1 2 tank of high octane gas will go a long way in bringing the octane back up to a safe level.
There are several reasons why a boat owner might want to drain a boat s fuel tank.
Pump the primer bulb to start syphon action.
If a motor is rated for 87 octane running a higher octane can actually be harmful.
Do not siphon gas with your mouth.
You will not be able to see the gas.
So i had to siphon the gas out of my fuel ce.
Perhaps the fuel has been contaminated by water or another substance.
Higher octane gas burns slower in a low.
How to drain old gas from on board tank if you have an outboard disconnect the primer bulb from the section of hose running to the motor replace it with a 3 piece of clear plastic tubing.
Stick plastic tubing thru the drains in your splash well and use the primer bulb to start the flow.
You need a large bucket preferably a five gallon one.
In order to clean your boat fuel tank you must first siphon out the gas that is left inside.
Wednesday october 17 2018 by.
Put the end of the fuel line in the receiving vessel.
Dan armitage after trying everything from double dosing the remaining fuel with stabilizer to topping off the tank to paying to have a marina drain my boat s gas tank dry for the off season i finally decided to follow the advice of a trusted friend and veteran great lakes marina operator and handled the task myself.
Take the fitting off of the engine end of the fuel line.
Make sure you use a clear hose and not a water hose.
I was having trouble with my boat it would run until it got out onto plane then it would fall fat on its face.
Push the hose all the way into the tank below the gas level.
Place the vessel for receiving the fuel beside the boat at a lower level like on the ground.