Petrol-Contaminated oil - Yamaha FZ6 Forums - FZ6 Motorcycle Forum
 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 02-26-2010, 01:17 PM Thread Starter
 
Join Date: Feb 2010
Posts: 2
Question Petrol-Contaminated oil

Hi
Just bought a fz 600, Its had been standing 18 mths and i have done all the Necessary things to get it running and then come to change the oil but its contaminated with petrol, what could cause this ?. I have done compression test and all seems fine, the plugs are burning golden brown.

Please help- I'm baffled.

Docka
Docka600 is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 02-27-2010, 09:18 PM
Junior Member
 
Hillbilly's Avatar
 
Join Date: Feb 2010
Location: Toronto Canada
Posts: 6
A couple of questions,
Is there a lot of petrol?
How much petrol was in the tank?
It is possible that with it sitting that long, a small amount of petrol would leak though the carbs into the cylinder and leak passed the piston rings.
If it's not too much petrol, more smell than you can see, I wouldn't worry about it.
Change the oil, but keep an eye on the level, or smell.
Hope this is what your asking and this helps.
BTW, I hope you are useing fresh petrol in the tank...

ACCIDENT FREE SINCE '73
Hillbilly is offline  
post #3 of 4 (permalink) Old 02-28-2010, 10:58 AM Thread Starter
 
Join Date: Feb 2010
Posts: 2
Red face Oil Contamination

Hi Hillbilly
There was quiet alot of petrol in the oil, But i did assume the same thing that you did. Reason being that there was no petrol in the tank when i got the bike and do beleive that because it was left standing outside, it could have been posible that the tank became pressurised on a summers day and forced petrol through the carbs directly into the cylinders.
I did Drain the carbs and add fresh fuel with lead replacement additive. But for the time being have only added cheap oil, untill i am certain the problem has been sorted. I have run the the bike a few times and all seems good, but do need to sort the front suspension it is to bouncy.
Do you have any idea's on what the compression read should be for the cylinders.

Thanks again---Docka600


Quote:
Originally Posted by Hillbilly View Post
A couple of questions,
Is there a lot of petrol?
How much petrol was in the tank?
It is possible that with it sitting that long, a small amount of petrol would leak though the carbs into the cylinder and leak passed the piston rings.
If it's not too much petrol, more smell than you can see, I wouldn't worry about it.
Change the oil, but keep an eye on the level, or smell.
Hope this is what your asking and this helps.
BTW, I hope you are useing fresh petrol in the tank...
Docka600 is offline  
 
post #4 of 4 (permalink) Old 03-01-2010, 10:42 PM
Junior Member
 
Hillbilly's Avatar
 
Join Date: Feb 2010
Location: Toronto Canada
Posts: 6
Sorry, I've just bought the bike so my knowledge for specs are '0'.
I'm still waiting for delivery.

ACCIDENT FREE SINCE '73
Hillbilly is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Yamaha FZ6 Forums - FZ6 Motorcycle Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome