[Cine Emmanuel]

Please help me i have a 2009 ktm 525xc so i used to dd 20w50 castrol yesterday i added 25w60 castrol and now there is blue smoke constantly coming out of the exhaust what do you think please? and what do you suggest I do?

 

[steveo525]

How was it running? Any other issues with the motor? How many hours? There are a few different things it could be. Burning excessive oil, oil getting past rings, etc. It may just be the that new oil you put in her. I would probably start by first draining that oil out and filling it back up with the stuff you were running before or another fully synthetic 10/40 or 15/50. I wouldn’t go heavier than 20/50. Another option is a good semi synthetic diesel oil like Rotella T4 15/40. Change oil and run it and see if that fixes the smoke issue. If not, then do a compression and or a leak/down test on the motor.

If you are truly worried that your motor is damaged then do the compression and leak down test first.

Check out the link below. It may help you out also.

https://atvman.com/atv-smoke/

 

[quad97]

My first thought is that oil is probably too thick and is being sent up the crankcase breather and being sucked into the combustion chamber with the intake air.

 

[Cine Emmanuel]

How was it running? Any other issues with the motor? How many hours? There are a few different things it could be. Burning excessive oil, oil getting past rings, etc. It may just be the that new oil you put in her. I would probably start by first draining that oil out and filling it back up with the stuff you were running before or another fully synthetic 10/40 or 15/50. I wouldn’t go heavier than 20/50. Another option is a good semi synthetic diesel oil like Rotella T4 15/40. Change oil and run it and see if that fixes the smoke issue. If not, then do a compression and or a leak/down test on the motor.

If you are truly worried that your motor is damaged then do the compression and leak down test first.

Check out the link below. It may help you out also.

https://atvman.com/atv-smoke/

Hell yeahhh im change the 25w60

How was it running? Any other issues with the motor? How many hours? There are a few different things it could be. Burning excessive oil, oil getting past rings, etc. It may just be the that new oil you put in her. I would probably start by first draining that oil out and filling it back up with the stuff you were running before or another fully synthetic 10/40 or 15/50. I wouldn’t go heavier than 20/50. Another option is a good semi synthetic diesel oil like Rotella T4 15/40. Change oil and run it and see if that fixes the smoke issue. If not, then do a compression and or a leak/down test on the motor.

If you are truly worried that your motor is damaged then do the compression and leak down test first.

Check out the link below. It may help you out also.

https://atvman.com/atv-smoke/

Hell yeah imma change the oil 25w60 to 20w50 and put some oil stop leak if it smoke again what u think??

 

[Cine Emmanuel]

My first thought is that oil is probably too thick and is being sent up the crankcase breather and being sucked into the combustion chamber with the intake air.

My first thought is that oil is probably too thick and is being sent up the crankcase breather and being sucked into the combustion chamber with the intake air.

that's exactly what i'm thinking too

 

[Cine Emmanuel]

that's exactly what i'm thinking too

So whats ur suggest ??

 

[megacab48]

Hell yeahhh im change the 25w60

Hell yeah imma change the oil 25w60 to 20w50 and put some oil stop leak if it smoke again what u think??

The only time i have had it smoke was when i filled it to full. Might check that first. I use the Rottela thinking 5w-40 but not sure. I have had good luck with it and is reasonable priced. Do a search there have been conversations on what oil everyone uses. Rich

 

[Cine Emmanuel]

The only time i have had it smoke was when i filled it to full. Might check that first. I use the Rottela thinking 5w-40 but not sure. I have had good luck with it and is reasonable priced. Do a search there have been conversations on what oil everyone uses. Rich

Ayt tnkx man

 

[megacab48]

did that fix the problem?

 

[powertechn2]

I noticed if I fill over halfway in the sightglass that there's a slight lessening in power, and I will get a little smoke on my 450xc. I remember posts when I first got it stating the same.

Definitely check the level. I run 10-50 amsoil. A lot of woods running, I saw cooler temps after switching. The 10-50 also is easier cranking than the 20-50 I ran before, which was also lower temps than the 10-40 prepreviously.