gas in oil...next steps?

alazlam · 11-23-2016, 07:28 PM

Hello,

I bought a '99 GZ250 last week for $1000. Everything checked out pretty good. Stopped for gas last night for the first time and it wouldn't start after. Crankcase smelt of oil so I search around here to find answers. I checked the peacock and it is functioning fine. Then I took the carbs apart and cleaned them. There were some small black flecks floating around from about .5mm to 2mm in size. Right now I have the oil/gas drained out and I'm waiting on an oil filter and fuel filter before trying to start it again. Is there anything else I should do/consider?

blaine · 11-23-2016, 09:51 PM

Quote:

Originally Posted by alazlam

Hello,

I bought a '99 GZ250 last week for $1000. Everything checked out pretty good. Stopped for gas last night for the first time and it wouldn't start after. Crankcase smelt of oil so I search around here to find answers. I checked the peacock and it is functioning fine. Then I took the carbs apart and cleaned them. There were some small black flecks floating around from about .5mm to 2mm in size. Right now I have the oil/gas drained out and I'm waiting on an oil filter and fuel filter before trying to start it again. Is there anything else I should do/consider?

Also check air filter & air box for fuel.....Some SeaFoam in fuel would be a good idea when you restart her.

alazlam · 11-24-2016, 03:51 AM

I have air filter on the way too. It was slightly damp but no standing liquid. I will look into SeaForm too. I remember seeing it at the shop nearby.

alazlam · 11-25-2016, 06:29 PM

Update time...

I got the new filters in today. Installed them both, filled her up with oil. Checked 5 times to make sure it was in the correct fill line. And it started and hummed along just fine!

For 5 minutes. Then it died again and now it refuses to start.

Ideas?

I thought originally the peacock was fine. If I unplug the fuel hose nothing drips out unless I switch it to prime where it pours out. Could it still be the problem? or part of it?

I've read some other threads now with similar issues. I guess it could be the float in the carb? I could buy the rebuild kit with the seals and float next?

blaine · 11-25-2016, 07:28 PM

Petcock seems to be working fine.....Sounds like float needle is still not seating properly.

wacio · 11-27-2016, 12:55 AM

Does it run OK on "prime". If yes its petcock membrane or vacuum hose.

alazlam · 11-27-2016, 03:44 AM

Nope. Doesnt even start on prime. I will report back on Friday or Saturday next week after I replace the float.

spldart · 11-28-2016, 10:42 PM

Fresh after dying....
Is the spark plug wet and smell of gas.
Does the plug hole smell of gas?

alazlam · 11-29-2016, 08:33 PM

Success! I received the carb rebuild kit today and replaced all the seals. She purrs just fine now.

Next issue: Starter switch doesn't work and I suspect wiring is the issue. At first it sometimes worked and then sometimes didn't work. Now it doesn't work at all. I can still start it if I bypass the solenoid though. But the solenoid is new so I'm 99% sure its not the problem. Battery is new too as the old one wouldn't hold a charge anymore. I did take the starter switch apart and clean all the contacts as well.

(should I just make a new thread?)

Water Warrior 2 · 11-30-2016, 05:22 AM

Stick to this thread so we have a running history of the bike and what you have done.

Have you checked to see if there is a clutch switch for the starter? It is a switch that operates to complete the starter circuit when the clutch is pulled in. It just may be a loose wire on the left hand clutch perch.

Also check the side stand switch and clean/lube it. It has the duties of not allowing the engine to start when in gear with the sidestand down.

11-23-2016, 07:28 PM	#1
alazlam Junior Member Join Date: Nov 2016 Posts: 13	gas in oil...next steps? Hello, I bought a '99 GZ250 last week for $1000. Everything checked out pretty good. Stopped for gas last night for the first time and it wouldn't start after. Crankcase smelt of oil so I search around here to find answers. I checked the peacock and it is functioning fine. Then I took the carbs apart and cleaned them. There were some small black flecks floating around from about .5mm to 2mm in size. Right now I have the oil/gas drained out and I'm waiting on an oil filter and fuel filter before trying to start it again. Is there anything else I should do/consider? Login or Register to Remove Ads
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11-24-2016, 03:51 AM	#3
alazlam Junior Member Join Date: Nov 2016 Posts: 13	I have air filter on the way too. It was slightly damp but no standing liquid. I will look into SeaForm too. I remember seeing it at the shop nearby. Login or Register to Remove Ads
	0

11-25-2016, 06:29 PM	#4
alazlam Junior Member Join Date: Nov 2016 Posts: 13	Update time... I got the new filters in today. Installed them both, filled her up with oil. Checked 5 times to make sure it was in the correct fill line. And it started and hummed along just fine! For 5 minutes. Then it died again and now it refuses to start. Ideas? I thought originally the peacock was fine. If I unplug the fuel hose nothing drips out unless I switch it to prime where it pours out. Could it still be the problem? or part of it? I've read some other threads now with similar issues. I guess it could be the float in the carb? I could buy the rebuild kit with the seals and float next? Last edited by alazlam; 11-25-2016 at 06:39 PM.
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11-25-2016, 07:28 PM	#5
blaine Senior Member Join Date: Feb 2010 Location: P.E.I. Canada Posts: 3,784	Petcock seems to be working fine.....Sounds like float needle is still not seating properly. __________________ If at first you do succeed, try not to look surprised. Login or Register to Remove Ads
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11-27-2016, 12:55 AM	#6
wacio Senior Member Join Date: Apr 2016 Location: Illinois Posts: 174	Does it run OK on "prime". If yes its petcock membrane or vacuum hose.
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11-27-2016, 03:44 AM	#7
alazlam Junior Member Join Date: Nov 2016 Posts: 13	Nope. Doesnt even start on prime. I will report back on Friday or Saturday next week after I replace the float.
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11-28-2016, 10:42 PM	#8
spldart Senior Member Join Date: May 2015 Location: Stafford, Texas Posts: 604	Fresh after dying.... Is the spark plug wet and smell of gas. Does the plug hole smell of gas?
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11-29-2016, 08:33 PM	#9
alazlam Junior Member Join Date: Nov 2016 Posts: 13	Success! I received the carb rebuild kit today and replaced all the seals. She purrs just fine now. Next issue: Starter switch doesn't work and I suspect wiring is the issue. At first it sometimes worked and then sometimes didn't work. Now it doesn't work at all. I can still start it if I bypass the solenoid though. But the solenoid is new so I'm 99% sure its not the problem. Battery is new too as the old one wouldn't hold a charge anymore. I did take the starter switch apart and clean all the contacts as well. (should I just make a new thread?)
	0

11-30-2016, 05:22 AM	#10
Water Warrior 2 Senior Member Join Date: Dec 2006 Location: Squamish B.C Canada Posts: 11,409	Stick to this thread so we have a running history of the bike and what you have done. Have you checked to see if there is a clutch switch for the starter? It is a switch that operates to complete the starter circuit when the clutch is pulled in. It just may be a loose wire on the left hand clutch perch. Also check the side stand switch and clean/lube it. It has the duties of not allowing the engine to start when in gear with the sidestand down.
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