White smoke out of exhaust?

[Ytm_225dx]

Ok well I know I've had a lot of questions so far but here's another
I'm blowing white smoke out of the exhaust but it's not continuous when I'm riding but does it for a spurt goes away then it'll do it again with a lot of white smoke like I said it's on and off but does every time is this valve seats or piston rings

[tri again]

wow
I was hoping it was moisture in the exhaust.
Actually still could be.
Does it seem to be engine temperature related? or just wenver it wants?
Runs good? or does it sputter when it smokes?

I'd try the search key for 'white smoke' to get tons of posts all at once.

PLEASE let us know what you figure out.

OOps!
What machine is it?
watercooled?

[Ytm_225dx]

It's a 225 dx ytm and yes it sputters when it smokes but it does run good no knocks or major tick I don't think and the engine doesn't seem to be getting to hot and I jus did a new filter and oil change to factory specs

[muthey]

Also take a moment to go through your carb and fuel checking for water and or a lean running condition.

[DohcBikes]

+1 on possible water in the gas.

[Ytm_225dx]

No it's fresh gas when filled and tank was empty

[DohcBikes]

If you have access to a compression gauge and/or a leak down tester those results will give you some good info on how the piston/rings and valve train are performing.

[Ytm_225dx]

I might be able to get a one and what exactly do the test for each valve duration and ring compression? But also I haven't checked the carb yet will do tomorrow and go from there

[DohcBikes]

The compression test is super easy if you have a properly functioning gauge.
Shut the fuel off.
If you have a kill switch, switch the ignition off.
Take the spark plug out. Put the wire somewhere that it won't arc, in case it does happen to.
Screw in the gauge, make sure you have the correct adapter for your model, compare it to your spark plug.
Make sure the choke is OPEN or OFF.
Open the throttle all the way, hold it open during the entire test so we can get an accurate reading.
Depending on your model kick, pull, or crank the engine, until you are satisfied that the reading is not going any higher. On an e-start engine it usually takes around four+ seconds or so to get a max reading, on some kick bikes it takes a bit of kicking.

Now get out your factory service manual, you do have one right.... and compare the readings to the acceptable range and service limit for your model.

A leak down test is a bit more complicated, but will give you more info. I recommend doing some research on how to perform the test, and how to read the results to tell you what is happening. Often times your factory service manual will take you step by step through each procedure, and tell you how to interpret the results.

Keep us posted!

[tri again]

Gas water etc.
Sure doesn't take much but anyway, water usually forms a glob it the very lowest
part of the can, tank, carb etc.
If it has a carb drain, you could just try the float bowl drain screw.
HEET is cheap and supposedly binds the water with a superevaporative alcohol and allow moisture to be 'burned'.
I use it to finish off gas tanks after cleaning them.
EZ to see if you put a few drops of water in an ounce or so of gas in a glass.

I've had a few machines that sat a long time and had sopping wet muffler packing.
Rings usually smoke blue, like oil, but water in the muffler can take forever (hours and hours) to heat up and evaporate...wishful thinking.
Did you try the search key?
I might just try it 'cause I get obsessed easily.

[DohcBikes]

"White smoke" and sputtering does sound like a water issue, but lotsa people, including myself, fall into the "wishful thinking" category as well, and suddenly its hard to tell "white smoke" from "blue smoke" lol.

It never hurts to do the tests. They are cheap, easy, often overlooked for some odd reason, and will let you know more about the condition of your engine, one way or another.

I hope its water too.

[tri again]

I've had properly rebuilt engine continue to smoke...from the oil residue
in mufflers from the old engine.
Especially turbo engine with blown waste gate seals.

x2, blue smoke can look white to me.
What's it smell like?
A fresh summer breeze after a rain? or steam shower?

[kebby28]

Also, you will get good results on here if you take the extra minute on writing your post. Nobody likes to read an ongoing sentence. Use commas, and periods. Then it will make more sense. Good luck

[DohcBikes]

I've had properly rebuilt engine continue to smoke...from the oil residue
in mufflers from the old engine.

Haha this exact thing happened to me less than a month ago.... I was freakin out til I swapped exausts, thought I lost my mojo lol!

[barnett468]

if it is water and not oil it will dissipate [disappear] very quickly.

if it is oil it will linger and smoke up the neighborhood.