Over the past 14 years at the beginning of every season I will take out the plugs on my 2stroke motors and spray WD40 generously in each cylinder. I was doing this because I thought it would cut down on friction since I figured there wouldn’t be any oil present after being set-up for a few months. After the motors sit for a few hours I would have a puddle of ‘soot’ underneath the motor. A few days later when I would crank the motor, it would smoke real bad for a few seconds and then clear up. My question is has what I have been doing over the years been having the same effects as ‘decarbing’?
Bring plenty of Beer and ice.
My guess would be that it is not decarbing the motor very much at all. In anycase, you would be better off using a fogging oil as opposed to the wd-40, and regurlay decarbing the motor.
To decarb, i generally get a 2.5 gallon gas can, use 1 gallon of fresh gas and mix with one can of seafoam. I then disconnect the fuel line from the boat and put it in the small gas can and let the boat run for 10 minutes or so. shut it off and let it set for 30-60 minutes. then go run the boat. Of course with carb motors you can just use powertune or someother decarb spray and spay into the carbs while running and then into the cylinders after. I generally change my plugs after a decarb. hope this helps
is wd-40 something u want to be spraying on internal engine parts?
hightide 1602sc
90hp merc
alumnicraft 14’
25hp merc
i wouldn’t do it. That is what fogging oil is made for
I forgot to mention. 14 years of heavy use and never been in the shop. Guess I should have taken them to the shop and made sure I wasn’t doing any damage.
Bring plenty of Beer and ice.
you havent been doing any damage
I’m now at www.teamcharlestonmarine.com
Thanks for the info. Jeffro and Chris.
Bring plenty of Beer and ice.