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Author Topic: Burning oil like no other  (Read 2082 times)

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Offline newmanhax

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Burning oil like no other
« on: October 22, 2010, 01:18:28 PM »
Hey guys,

            It's me again. So i've recently fitted some 4 into 1's no baffles podded not rejetted yet carbs #90 stock jets, understanding that without the air box it is difficult to acquire the right fuel to air mixture. BUT i start up the bike and it runs alright for about 20 seconds then white oil smoke starts to fly out of there, a good deal of it too, and doesn't stop. Im guessing oil rings? head gasket? valve stems? anyone have some experience with this scenario?

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Offline scunny

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Re: Burning oil like no other
« Reply #1 on: October 22, 2010, 01:33:39 PM »
are you sure it's oil smoke, which is a grey to blue colour, could be condensation when the motor warms up. how long since the motor ran ?
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Offline Duke McDukiedook

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Re: Burning oil like no other
« Reply #2 on: October 22, 2010, 01:38:41 PM »
oil smoke = blue.
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Offline newmanhax

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Re: Burning oil like no other
« Reply #3 on: October 22, 2010, 01:48:51 PM »
Quote from: scunny on October 22, 2010, 01:33:39 PM
are you sure it's oil smoke, which is a grey to blue colour, could be condensation when the motor warms up. how long since the motor ran ?

I cant really tell.
the pipes are old and rusty though.
the smokes looks more like white smoke than anything but still is killing me to sit there and watch so much of it come out of the exhaust haha. maybe some crap into there needs to burn off?
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Offline wookie

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Re: Burning oil like no other
« Reply #4 on: October 22, 2010, 03:47:18 PM »
Unfortunately i had something similar.  I had smoke coming out the pipe and it only got worse.  Took off the pipe at the head and witnessed oil spewing from #2 exhaust.  Head gasket.

All good now tho.
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Offline BobbyR

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Re: Burning oil like no other
« Reply #5 on: October 22, 2010, 04:19:14 PM »
Oil smoke will linger. Condensation will dissipate very quickly.
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Offline newmanhax

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Re: Burning oil like no other
« Reply #6 on: October 26, 2010, 12:55:17 PM »
Quote from: cbcafe on October 22, 2010, 03:47:18 PM
Unfortunately i had something similar.  I had smoke coming out the pipe and it only got worse.  Took off the pipe at the head and witnessed oil spewing from #2 exhaust.  Head gasket.

All good now tho.

ahh yeah that sucks man, i was suspecting the gasket possibility. It's almost time to store this sucker and work on her. gotta love winter in New England.
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Offline Duanob

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Re: Burning oil like no other
« Reply #7 on: October 27, 2010, 11:24:34 AM »
Sure it's not just a worn out valve guide seal? They are rubber and after 30+ years it seems like a logical first place to look. I'm in the same boat as far as smoke but my compression is good and it doesn't miss or sputter. Smokes the worst at start up and idling and goes away while running at RPMs. So I'm assuming my HG is good, rubber seals are bad.
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Offline newmanhax

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Re: Burning oil like no other
« Reply #8 on: October 28, 2010, 12:27:27 AM »
Quote from: Duanob on October 27, 2010, 11:24:34 AM
Sure it's not just a worn out valve guide seal? They are rubber and after 30+ years it seems like a logical first place to look. I'm in the same boat as far as smoke but my compression is good and it doesn't miss or sputter. Smokes the worst at start up and idling and goes away while running at RPMs. So I'm assuming my HG is good, rubber seals are bad.

Good call man im gonna check'm this week, thanks a bunch!
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bollingball

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Re: Burning oil like no other
« Reply #9 on: October 28, 2010, 07:56:54 AM »
You said it does not stop. How long did you let it run?
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Offline newmanhax

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Re: Burning oil like no other
« Reply #10 on: November 04, 2010, 03:15:27 PM »
Quote from: bollingball on October 28, 2010, 07:56:54 AM
You said it does not stop. How long did you let it run?

it'll run for about 2 minutes then start to smoke out my drive way hahah
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