Lifan 200cc iii fuel leak

rtmarengo59 · 05-02-2008, 07:40 PM

I just received my Lifan and put it together. I Road 23 miles and the bike stopped. Fuel is leaking from the carb, somewhere around the side where the choke is. I have not had a chance to look at it to close. I'm to damn old to see that close. Any idea" what this could be? Gas pours out.

I did has suggested, removed and cleaned the carb. It runs great. No more leaks. Thanks guy's!

frostbite · 05-02-2008, 07:52 PM

My guess would be a bad fuel line. This isn't unheard of with Chinese bikes.

AZ200cc · 05-02-2008, 07:53 PM

Chinese rubber :roll:

IronFist · 05-02-2008, 08:21 PM

Have you had a chance to look at it yet? Can you get a picture up? Might just be the drain screw on the float bowls?

katoranger · 05-02-2008, 09:44 PM

Check the fuel line.

Mine was cracked. The line is very cheap.

Allen

ddesens · 05-02-2008, 09:56 PM

What about a bad needle and seat?

theENIGMATIC · 05-02-2008, 10:48 PM

Could it be the type of gas you used.your not filling it with Jolt cola are you..... :?
I read that it can bubble up and shi7 and boil out and over.I would try different gas and see.....read the manual for correct mixture!

IronFist · 05-03-2008, 12:39 AM

Quote:

Originally Posted by theENIGMATIC

Could it be the type of gas you used.your not filling it with Jolt cola are you..... :?
I read that it can bubble up and shi7 and boil out and over.I would try different gas and see.....read the manual for correct mixture!

What ??????? :?

IronFist · 05-03-2008, 02:36 PM

http://www.chinariders.net/gallery2/...g2_itemId=8155

Here is a picture of where the leak is, it's a poor pic but it might give some of you guys enough info to make a diagnosis. Any help would help alot. Thanks. N2r.

rtmarengo59 · 05-03-2008, 03:14 PM

I looked at it again. It seems like the carb is getting way more fuel than it can handle. Not only is it flowing out in the area in the picture, its running out of the overflow tube as well.

IronFist · 05-03-2008, 05:36 PM

I think you might have a problem with your float valve. I've seen that problem. Do you know how to dismantle a carb and clean it? If you do go ahead, if not, do a search on carbs, people have already written it out step by step. When the brass float goes up and down it triggers a valve. If you clean it your problem should go away. You may have to replace it, or you may have a really faulty petcock like I did, but cleaning your carb would be the first step. Just my 2cents, I'm sure others will help out. N2r

IronFist · 05-03-2008, 06:03 PM

Also if you are getting that much fuel flow....

With clean hands,
Pull the dip stick and smell the oil, roll it in your fingers and sniff. If you smell gas, you"ll have tho dump the oil. Gas breaks down the oil, and that can overheat an engine. But that can wait till you solve the problem of too much gas getting to the floatbowls/N2r

rtmarengo59 · 05-03-2008, 08:28 PM

thanks much, I'll clean the carb and see if that resolves the issue.

ScooterOllie · 05-03-2008, 08:48 PM

A very common problem on these carbs. - cycles and scoots. Many times you don't even find a cause, like stuck float valve or speck of dirt. Just open it up, inspect, clean, blow air through and reassemble. Will probably work perfectly. Happened to me on my CFMoto 250 scoot w/Keihin carb.
ScooterOllie, Scootdawg.com moderator

05-02-2008, 07:40 PM	#1
rtmarengo59 Join Date: May 2008 Posts: 4	Lifan 200cc iii fuel leak I just received my Lifan and put it together. I Road 23 miles and the bike stopped. Fuel is leaking from the carb, somewhere around the side where the choke is. I have not had a chance to look at it to close. I'm to damn old to see that close. Any idea" what this could be? Gas pours out. I did has suggested, removed and cleaned the carb. It runs great. No more leaks. Thanks guy's!
	0

05-02-2008, 07:52 PM	#2
frostbite Join Date: May 2006 Location: Fredericton, NB, Canada Posts: 1,744	My guess would be a bad fuel line. This isn't unheard of with Chinese bikes. __________________ Frostbite "The beatings will continue until moral improves"
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05-02-2008, 07:53 PM	#3
AZ200cc Join Date: Apr 2007 Location: Show Low Arizona Posts: 2,889	Chinese rubber :roll: __________________ <br />2001 Suzuki DR200SE<br />1997 Suzuki RM250 YIKES<br />1995 Yamaha Breeze 125 daughters<br />1991 Honda XR80r Restored<br />maybe a 2003 Yamaha TTR90
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05-02-2008, 08:21 PM	#4
IronFist Join Date: Apr 2007 Location: Toronto Ontario Canada Posts: 2,585	Have you had a chance to look at it yet? Can you get a picture up? Might just be the drain screw on the float bowls? __________________ IronFist ___________________________________ The "chain" of command is used for beating spammers. ___________________________________
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05-02-2008, 09:44 PM	#5
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	Check the fuel line. Mine was cracked. The line is very cheap. Allen __________________ You meet the nicest people on a Honda Clone.
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05-02-2008, 09:56 PM	#6
ddesens Join Date: Apr 2008 Posts: 8	What about a bad needle and seat?
	0

05-02-2008, 10:48 PM	#7
theENIGMATIC Join Date: Feb 2008 Posts: 392	Could it be the type of gas you used.your not filling it with Jolt cola are you..... :? I read that it can bubble up and shi7 and boil out and over.I would try different gas and see.....read the manual for correct mixture!
	0

05-03-2008, 02:36 PM	#9
IronFist Join Date: Apr 2007 Location: Toronto Ontario Canada Posts: 2,585	http://www.chinariders.net/gallery2/...g2_itemId=8155 Here is a picture of where the leak is, it's a poor pic but it might give some of you guys enough info to make a diagnosis. Any help would help alot. Thanks. N2r. __________________ IronFist ___________________________________ The "chain" of command is used for beating spammers. ___________________________________
	0

05-03-2008, 03:14 PM	#10
rtmarengo59 Join Date: May 2008 Posts: 4	I looked at it again. It seems like the carb is getting way more fuel than it can handle. Not only is it flowing out in the area in the picture, its running out of the overflow tube as well.
	0

05-03-2008, 05:36 PM	#11
IronFist Join Date: Apr 2007 Location: Toronto Ontario Canada Posts: 2,585	I think you might have a problem with your float valve. I've seen that problem. Do you know how to dismantle a carb and clean it? If you do go ahead, if not, do a search on carbs, people have already written it out step by step. When the brass float goes up and down it triggers a valve. If you clean it your problem should go away. You may have to replace it, or you may have a really faulty petcock like I did, but cleaning your carb would be the first step. Just my 2cents, I'm sure others will help out. N2r __________________ IronFist ___________________________________ The "chain" of command is used for beating spammers. ___________________________________
	0

05-03-2008, 06:03 PM	#12
IronFist Join Date: Apr 2007 Location: Toronto Ontario Canada Posts: 2,585	Also if you are getting that much fuel flow.... With clean hands, Pull the dip stick and smell the oil, roll it in your fingers and sniff. If you smell gas, you"ll have tho dump the oil. Gas breaks down the oil, and that can overheat an engine. But that can wait till you solve the problem of too much gas getting to the floatbowls/N2r
	0

05-03-2008, 08:28 PM	#13
rtmarengo59 Join Date: May 2008 Posts: 4	thanks much, I'll clean the carb and see if that resolves the issue.
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05-03-2008, 08:48 PM	#14
ScooterOllie Join Date: Apr 2008 Location: E. Panhandle of WV Posts: 6	Carb. overflow A very common problem on these carbs. - cycles and scoots. Many times you don't even find a cause, like stuck float valve or speck of dirt. Just open it up, inspect, clean, blow air through and reassemble. Will probably work perfectly. Happened to me on my CFMoto 250 scoot w/Keihin carb. ScooterOllie, Scootdawg.com moderator
	0