Fuel in the air cleaner assembly

Stryker · 04-09-2012, 02:09 PM

Howdy, I just picked up a 2001 GZ250, seems to run fairly decently but there is a lot of fuel in the air cleaner assembly ans when you let off the throttle, the bike revs down and dies.

Could this be a float issue or do I need to replace the carb?

Thanks
Rich

blaine · 04-09-2012, 04:33 PM

Welcome.It sounds like a float issue.The carb is a common problem on these bikes.A good cleaning & regular use of Berrymans b-12 or SeaFoam will cure your problem.

:cool:

Stryker · 04-09-2012, 04:41 PM

Im starting to get that feelin, looking at the other thread - viewtopic.php?f=7&t=5428

I need to pull the lawn tools out and get the GZ into that back bay where it will call home soon. Looks like the carb is first on the hit list.

Is there a carb rebuild kit out there thats better than the rest?

Rich

blaine · 04-09-2012, 04:57 PM

Never had to use a kit.I just gave everything a good cleaning & used SeaFoam once a month for the 3 years I had my G.Z. It had 46000 on the clock when I sold it and ran perfectly.

:2tup:

Stryker · 04-09-2012, 05:32 PM

Ok, thanks. I would assume gaskets needed replaced, but I havent dont much with carbs before.

A buddy of mine has a '70s BMW that has foam floats and he is regularly complaining about replacing them every few years.

Water Warrior 2 · 04-09-2012, 05:47 PM

You will find a drain tube from the air box assembly that hangs down to the bottom of the frame. It has a plug in it. Remove the plug and drain whatever is there. Replace the plug as it is a sealing part for the entire air system.

Stryker · 04-09-2012, 07:25 PM

Yea, I found that after wasting a dozen paper towels and getting gas all over my hands and hoodie. Headed out to the garage now and see if it leaked more over night.

OldNTired · 04-10-2012, 12:18 AM

Quote:

Originally Posted by Stryker

Yea, I found that after wasting a dozen paper towels and getting gas all over my hands and hoodie. Headed out to the garage now and see if it leaked more over night.

Just a wild guess on my part, but do you by any chance have the fuel petcock in the PRI position? But I am confused: with all that extra fuel how does it start?

Stryker · 04-10-2012, 09:15 AM

Its starts, but runs poorly. Yes, I believe it is in the PRI position. I was JUST now reading about that and boy did I have a misundestanding of what they meant.

ON - In the 'on' position, manifold vacuum is used to open the valve (fuel will not flow with the engine off)

PRI - Pri means "PRIME". Fuel will flow whether the engine is running or not

RES - Reserve

I will move that sucker to ON as soon as I get home! I bought it with it in that position. Vacume line was unplugged from the back of it and pri was the only way they could get fuel.

The floor under the bike was dry this morning, Im betting the gas in the air cleaner happened when it was transported and the bike was moving around.

blaine · 04-10-2012, 10:08 AM

Yep.Sounds about right.

:2tup:

04-09-2012, 02:09 PM	#1
Stryker Junior Member Join Date: Apr 2012 Location: Seattle Posts: 7	Fuel in the air cleaner assembly Howdy, I just picked up a 2001 GZ250, seems to run fairly decently but there is a lot of fuel in the air cleaner assembly ans when you let off the throttle, the bike revs down and dies. Could this be a float issue or do I need to replace the carb? Thanks Rich Login or Register to Remove Ads
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04-09-2012, 04:33 PM	#2
blaine Senior Member Join Date: Feb 2010 Location: P.E.I. Canada Posts: 3,784	Re: Fuel in the air cleaner assembly Welcome.It sounds like a float issue.The carb is a common problem on these bikes.A good cleaning & regular use of Berrymans b-12 or SeaFoam will cure your problem. :cool: __________________ If at first you do succeed, try not to look surprised.
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04-09-2012, 04:41 PM	#3
Stryker Junior Member Join Date: Apr 2012 Location: Seattle Posts: 7	Re: Fuel in the air cleaner assembly Im starting to get that feelin, looking at the other thread - viewtopic.php?f=7&t=5428 I need to pull the lawn tools out and get the GZ into that back bay where it will call home soon. Looks like the carb is first on the hit list. Is there a carb rebuild kit out there thats better than the rest? Rich Login or Register to Remove Ads
	0

04-09-2012, 04:57 PM	#4
blaine Senior Member Join Date: Feb 2010 Location: P.E.I. Canada Posts: 3,784	Re: Fuel in the air cleaner assembly Never had to use a kit.I just gave everything a good cleaning & used SeaFoam once a month for the 3 years I had my G.Z. It had 46000 on the clock when I sold it and ran perfectly. :2tup: __________________ If at first you do succeed, try not to look surprised.
	0

04-09-2012, 05:32 PM	#5
Stryker Junior Member Join Date: Apr 2012 Location: Seattle Posts: 7	Re: Fuel in the air cleaner assembly Ok, thanks. I would assume gaskets needed replaced, but I havent dont much with carbs before. A buddy of mine has a '70s BMW that has foam floats and he is regularly complaining about replacing them every few years. Login or Register to Remove Ads
	0

04-09-2012, 05:47 PM	#6
Water Warrior 2 Senior Member Join Date: Dec 2006 Location: Squamish B.C Canada Posts: 11,409	Re: Fuel in the air cleaner assembly You will find a drain tube from the air box assembly that hangs down to the bottom of the frame. It has a plug in it. Remove the plug and drain whatever is there. Replace the plug as it is a sealing part for the entire air system.
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04-09-2012, 07:25 PM	#7
Stryker Junior Member Join Date: Apr 2012 Location: Seattle Posts: 7	Re: Fuel in the air cleaner assembly Yea, I found that after wasting a dozen paper towels and getting gas all over my hands and hoodie. Headed out to the garage now and see if it leaked more over night.
	0

04-10-2012, 09:15 AM	#9
Stryker Junior Member Join Date: Apr 2012 Location: Seattle Posts: 7	Re: Fuel in the air cleaner assembly Its starts, but runs poorly. Yes, I believe it is in the PRI position. I was JUST now reading about that and boy did I have a misundestanding of what they meant. ON - In the 'on' position, manifold vacuum is used to open the valve (fuel will not flow with the engine off) PRI - Pri means "PRIME". Fuel will flow whether the engine is running or not RES - Reserve I will move that sucker to ON as soon as I get home! I bought it with it in that position. Vacume line was unplugged from the back of it and pri was the only way they could get fuel. The floor under the bike was dry this morning, Im betting the gas in the air cleaner happened when it was transported and the bike was moving around.
	0

04-10-2012, 10:08 AM	#10
blaine Senior Member Join Date: Feb 2010 Location: P.E.I. Canada Posts: 3,784	Re: Fuel in the air cleaner assembly Yep.Sounds about right. :2tup: __________________ If at first you do succeed, try not to look surprised.
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