fogging a yamahaf150

[Reel Time]

 any1 done them? how ya do it?

[IrishAyes]

Not sure if it would be the same but...the owner's manual for my 4 stroke 225 says to remove spark plugs, spray fogger into cylinders for six seconds then crank engine over with shut off lanyard removed.  Only need to crank engine so the pistons go up and down a few times (only a few seconds).  Replace spark plugs.  Beginning of next season, run motor to burn off fogger then replace spark plugs.

[CapBob]

I always fogged my 225 Yami buy spraying the fogging il int the air intake until she amost stalls......coats everything

[Hotrod]

Some engines have an air valve fitting somewhere near the choke. I know mine does and i screw the fogger spray right on and do like Capt Bob does.  spray it until the engine stalls

[IrishAyes]

My 4 stroke injected doesn't have any of that. 

[TurboDan]

Some engines have an air valve fitting somewhere near the choke. I know mine does and i screw the fogger spray right on and do like Capt Bob does.  spray it until the engine stalls

That was always a feature on the OMC 2-strokes.  Mine has that.  Do some other brands offer that too, now?

[Skunked]

I do the same as Irish on my yam F225. Although at the price of plugs I have a winter set that I put in after fogging. Then put my summer set back in after first run in the spring. I get several years on my summer set and they look great.

[IrishAyes]

Good idea there Skunked.  I didn't think of doing that.  May just have to give it a try.     I put over two hundred hours on the motor this year.  So, I don't know if it would work as well as it does for you.   

[CapBob]

I'm always super careful, new plugs every spring

[mboy]

I will change plugs after I burn off the fogging oil.

New plugs are cheap ($20 for set tops), so no big deal.

[IrishAyes]

Yeah, on second thought, it is cheap insurance having new plugs at the beginning of the season.   

[TurboDan]

Plugs, to me, are pretty much the least expensive thing I have to buy for the boat, so I play it extra safe and get new ones every season after the first run to burn off all the fogging oil.  I use the boat almost daily during the summer, so the plugs are put through just about everything from the extreme heat of summer to the freezing temps of winter.  In between, it has enough "trolling speed" action in No Wake Zones to last a lifetime. 

[Skunked]

How many time do you change the plugs on your street car or truck. These four strokes are no different. When is the last time you car quit because of a spark plug failure. The only difference is burning off the fogging oil. Otherwise the fuel management system burns just like your car and I know you don't change your plugs every 200 hours on your cars. My last two GMC yukons I ran 3500 hour and 90,000 miles on the same set of plugs. The spark plug company's love you guys. In Pa I pay $10 per plug thats $60 a set, I agree not much money but why throw it away.

[mboy]

Damn, 60 per set? I can order them for $2.xx a piece online for my engine.

[Skunked]

I just checked online and found them for $7 a plug.

[mboy]

What plugs?

[Kevin]

Fogging oil.good times im in a vocational school for marine trades and we had a subsitute one day who dindt know anything, and we fogged an outboard with out the shop doors open, and ran the motor long, and it fogged the whole shop that nobody could see ANYTHING, it set off the fire alarm and the fire trucks etc came, we all got in big trouble. lol so if you fog your motor do it in a well venitilated area, not a garage!!     now yes first i run it aqnd spray the oil into the intake/carb until it stalls out.then i usually spray fogging ol into each cyclinder, crank it over with a couple of revolutions, the plugs IN the cyclinder or else it goes everywere, and your done

[Skunked]

What plugs?

LFR5A-11 (NGK)

[mboy]

$5.38

http://marineexpressusa.com/proddetail.asp?prod=41%2DLFR5A11

Reasonable shipping too.

They consistently have the best pric on most things I look for.

I have a nice order to place with them around March or so.