GAS IN OIL

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15 Apr 2010 21:11 #360998 by csrjoe
GAS IN OIL was created by csrjoe
HOW CAN GASOLINE GET INTO THE OIL OF THE ENGINE, I'M HAVING THE OIL CHANGED BUT STILL WOULD LIKE TO KNOW HOW.

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15 Apr 2010 21:17 - 15 Apr 2010 21:26 #361002 by Patton
Replied by Patton on topic GAS IN OIL
Usually traceable to faulty carb function which allows fuel to rise up too high inside the carb for whatever reason.

Good Fortune! :)
1973 Z1
KZ900 LTD
Last edit: 15 Apr 2010 21:26 by Patton.

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15 Apr 2010 21:19 #361004 by PLUMMEN
Replied by PLUMMEN on topic GAS IN OIL
common occurance on a 2 stroke engine,not so good on a 4 stroke though! :laugh:
Still recovering,some days are better than others.

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15 Apr 2010 21:22 #361005 by Buda
Replied by Buda on topic GAS IN OIL
Needle and seat not sealing...floats set to high? Someone will give more detail answers.
1982 KZ 1170 LTD
10.25 to 1 comp
K&N pods
GPZ cams
Vance&Hines pipe with comp baffle
dyna coils and wires
97 Valkyrie Standard

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15 Apr 2010 21:25 #361007 by timebomb33
Replied by timebomb33 on topic GAS IN OIL
flaot valves pitted or scored will do that every time
1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE

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15 Apr 2010 21:39 #361014 by Patton
Replied by Patton on topic GAS IN OIL
Or a speck of grit or crud preventing complete seal of float needle tip inside the seat orifice.

Or maybe a leaky float, or "sticking" float, or loss of float buoyancy.

And sometimes floats get installed upside down. :pinch:

Likelihood of fuel intrusion into crankcase is increased when carb overflow circuit doesn't exist or is obstructed.

Good Fortune! :)
1973 Z1
KZ900 LTD

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16 Apr 2010 04:36 - 20 Feb 2013 20:06 #361034 by H1Vindicator
Replied by H1Vindicator on topic ----
Last edit: 20 Feb 2013 20:06 by H1Vindicator.

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16 Apr 2010 06:28 #361074 by TexasKZ
Replied by TexasKZ on topic GAS IN OIL
A faulty petcock may also be adding to the problem, but not causing it.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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16 Apr 2010 06:38 #361079 by pgboyd
Replied by pgboyd on topic GAS IN OIL
On the KZ1000Ps, a leaky petcock plus float valves that don't close leads to gas in the oil. Not uncommon to need to rebuild the petcock or replace with a shutoff. As a stopgap, you may find that putting the petcock on reserve instead of main may work to stop the fuel flow when the bike is not running. If your petcock has a PRI (prime) setting, don't leave it on this or you're asking for gas in your oil.

Phil
Phil Boyd
Northern Virginia USA
1995 KZ1000P Police Bike

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16 Apr 2010 10:40 #361142 by csrjoe
Replied by csrjoe on topic GAS IN OIL
THANKS EVERYONE FOR THERE INPUT. TO ANSEWER ONE ? THOUGH, I WASNT GOING TO HAVE THE OIL CHANGED. THE PO SAID HE CHANGED THE OIL RECENTLY. BUT THE MECHNIC SAID HE SMELLED GAS IN OIL. IT COST 10 BUCKS. THE PO ALSO REPLACED THE PETCOCK, WITH NEW ONE. THE MECHNIC ALSO FLUSHED THE CARBS AND ALL 4 DID WHAT THEY WERE SUPPOSED TO DO, WHICH IS GAS CAME OUT. NOW THEY STILL MAY NEED TO BE CLEANED AND REBUILT I DONT KNOW BUT IT IS A ? I WILL ASK.

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16 Apr 2010 12:21 #361155 by JMKZHI
Replied by JMKZHI on topic GAS IN OIL
All caps is kinda hard on the eyes & implies shouting. :)

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16 Apr 2010 13:06 #361157 by csrjoe
Replied by csrjoe on topic GAS IN OIL
oops sorry, I'm not shouting, still learning how to use computer ligo

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