white gunk coming from crankcase breather tube

[Crankin04]

Originally Posted by ggg

my guess head gasket, mine has just gone, these signs are
Hard starting
Remove your plug it will be darker than normall.
Milly oil in back of airbox and later in engine oil
Remove rad cap looking into raditor the water will have bubbles
Remove header pipe you will have water in it, look into block though exhuast opening you will see white droplets.

These are all the signs of a blown head gasket it just starts with harder starting first and a darker looking plug then starts the white looking goo in the egine breather lines, thats the water condensation in the motor from the head gasket.

I don't notice any bubbles in my radiator and engine/frame oil still look fine, although it sounds like it's starting to blow since it's only getting worse with the white gunk and smoke with hard starting. Is replacing the head gasket a procedure that can be done pretty easily? Anything else I should get before replacing?

Thanks for help

Crankin04

[ggg]

Originally Posted by Crankin04

I don't notice any bubbles in my radiator and engine/frame oil still look fine, although it sounds like it's starting to blow since it's only getting worse with the white gunk and smoke with hard starting. Is replacing the head gasket a procedure that can be done pretty easily? Anything else I should get before replacing?

Thanks for help

Crankin04

I would not replaced the heat gasket until you are sure thats what it is.

its is alot easier to remove the exhuast and header pipe first, all you will need to replace is the header gasket, this takes alot less time and is also cheaper on parts. if your head is blown there will be signs of water in the exhuast outlets and your plug will look darker than normall. If there is moisture in there then its the head gasket and you have to remove the exhuast anyway.

Replacing the head gaskets is not hard you just read the manual and mark how things come out, i did mine for the first time it took about 3 hours to stripp down.

If you have no bubbles in the rads i doubt if the head gasket is blown, thats a sure sign the gasket is gone.

The other thing you can do is check is your valves its called a leak down test, you remove the exhuast header pipe and the carb/efi and pour a small amount of fuel into each of the vavle seats through the exhuast inlet and fuel inlets, make sure the valves are level so the fuel covers all around the vavles, this is a test to see if the valves are seating correctly as the fuel should not leak past the valves if it does the motor will not hold compression.
to do this you need to make sure the motors at TDC so all the valves are closed on the compression stroke.

if both of these thing are ok not sure where to go from here.

[Crankin04]

Originally Posted by ggg

I would not replaced the heat gasket until you are sure thats what it is.

its is alot easier to remove the exhuast and header pipe first, all you will need to replace is the header gasket, this takes alot less time and is also cheaper on parts. if your head is blown there will be signs of water in the exhuast outlets and your plug will look darker than normall. If there is moisture in there then its the head gasket and you have to remove the exhuast anyway.

Replacing the head gaskets is not hard you just read the manual and mark how things come out, i did mine for the first time it took about 3 hours to stripp down.

If you have no bubbles in the rads i doubt if the head gasket is blown, thats a sure sign the gasket is gone.

The other thing you can do is check is your valves its called a leak down test, you remove the exhuast header pipe and the carb/efi and pour a small amount of fuel into each of the vavle seats through the exhuast inlet and fuel inlets, make sure the valves are level so the fuel covers all around the vavles, this is a test to see if the valves are seating correctly as the fuel should not leak past the valves if it does the motor will not hold compression.
to do this you need to make sure the motors at TDC so all the valves are closed on the compression stroke.

if both of these thing are ok not sure where to go from here.

So your saying that the gasket could just be gone completely, instead of starting to blow with no bubbles in the radiator? What gets me is my oil when it's drained is totally fine, and it ONLY smokes on occasion and when I try and start cold. It looks like blue smoke sometimes too?

I mean how easily can a head gasket be blown? I've always kept lots of coolant in my radiators and made sure they weren't plugged up from anything. Plus I thought the gasser 4 strokes usually run cooler than others?

I have already gotten my valves check and adjusted from the shop earlier this year and they investigated my head and said it looked fine, but who knows how "well" they looked and what not. Especially since it started spooging out the white gunk the ride right after I got it back from them

Anyways I might take it in again to a different local shop and have them do some investigating since I don't have much time to look at it further. Any other thoughts let me know.

Thanks guys,

Crankin04

[noobi]

Just throwing it out there, but some smoking could be engine oil getting past the rings, if they were worn out, then some oil would get past when they were cold, and as it heated up, they would expand and no more oil could get past. But I dont think that explains the hard starting.

[ggg]

Originally Posted by Crankin04

So your saying that the gasket could just be gone completely, instead of starting to blow with no bubbles in the radiator?No No What gets me is my oil when it's drained is totally fine, and it ONLY smokes on occasion and when I try and start cold. It looks like blue smoke sometimes too?

I mean how easily can a head gasket be blown? easliy enough my 2008 was replaced under warranty and 2 year later it gone again, i run coolant doesnt everyone?I've always kept lots of coolant in my radiators and made sure they weren't plugged up from anything. Plus I thought the gasser 4 strokes usually run cooler than others? whoever told you that is full of shit
I have already gotten my valves check and adjusted from the shop earlier this year and they investigated my head and said it looked fine, but who knows how "well" they looked and what not. Especially since it started spooging out the white gunk the ride right after I got it back from them

Anyways I might take it in again to a different local shop and have them do some investigating since I don't have much time to look at it further. Any other thoughts let me know.

Thanks guys,

Crankin04

IF there is NO bubbles in the rads the Head gasket is mostly likely ok , as soon as the gasket starts to leak, you will see bubbles in the rads.

You got your valves Checked, what did you get checked?? did they do a leakdown test?? if they did not remove the exhuast and carb/efi they did not do a leak down test. if your valves leak gases past them it Will Be Hard To Start.


Blue smoke is a sign of a warn out motor same as a car, could be piston/rings etc.

[Crankin04]

Originally Posted by ggg

IF there is NO bubbles in the rads the Head gasket is mostly likely ok , as soon as the gasket starts to leak, you will see bubbles in the rads.

You got your valves Checked, what did you get checked?? did they do a leakdown test?? if they did not remove the exhuast and carb/efi they did not do a leak down test. if your valves leak gases past them it Will Be Hard To Start.


Blue smoke is a sign of a warn out motor same as a car, could be piston/rings etc.

I don't know if they did a leakdown test or not. They said they just adjusted the valves that looked really tight. Inspected my head as well.

The blue/white smoke (whatever it is, can't tell the color exactly) that comes out doesn't always happen. Usually only does if I have been cracking the throttle open while using the e-start to try and get it started when cold. Sometimes it starts easy and I don't have to do any of that and no smoke at all.

The one thing that IS always consistent is white spooge out my breather tube. Sometimes it's in small amounts after a ride, and sometimes larger amounts. I put about 1800ml like the manual says after I drain my oil. I usually make sure to get out all the oil too before re-pouring new oil.

Should I do less like maybe 1600ml? Is some getting by some how? I don't notice any loss of power or bogging, and bike idles real good...

[ggg]

Originally Posted by Crankin04

I don't know if they did a leakdown test or not. They said they just adjusted the valves that looked really tight. Inspected my head as well. Well ask them if they did and you will know...

The blue/white smoke (whatever it is, can't tell the color exactly) that comes out doesn't always happen. Usually only does if I have been cracking the throttle open while using the e-start to try and get it started when cold. You should take it to someone how knows about bike, becuase it is obvous you dont, if the bike wont start and its turning over the smoke or whatever is unburnt fuel, that what happens when your bike doenst start... Sometimes it starts easy and I don't have to do any of that and no smoke at all.

The one thing that IS always consistent is white spooge out my breather tube. Ive alraedy told you want to look for Sometimes it's in small amounts after a ride, and sometimes larger amounts. I put about 1800ml like the manual says after I drain my oil. I usually make sure to get out all the oil too before re-pouring new oil.

Should I do less like maybe 1600ml? yeh i guess you are, how can putting in less oil stop the white goo, does putting in less stop the moisture thats mixing with the oil to turn it white?? no it doesnt, if you over fill the bike it would be black oil coming out the breather tube..Is some getting by some how? I don't notice any loss of power or bogging, and bike idles real good...

ggg
fsr450

[Crankin04]

Originally Posted by ggg

ggg
fsr450

By the way your replying to my post about my questions, you sound a bit condescending, and actually to be honest with you, kind of a DOUCHE BAG.

Thanks for all your help, I guess...

Crankin04