More help needed

dyna · 04-13-2011, 10:01 PM

As mentioned in previous post,I bought 2-new taotao 250E, towed one home after 20-min. use because it died and would not restart. Acted like not getting fuel, though fuel was fine as was spark. Told to send carbs back to have jets bored so more fule would be had. Place one returned carb into atv that ran ok when bought and had no issues during my 10-test MIn ride.
Placed 2nd carb in atv I towed home and it fired right up, but when given full throttle it would not take it and just sputtered. let off throttle it ran a few seconds and then died. Tried restarting and it just turned over and acted like it wasn't getting fuel again. it sat a few seconds, started then died and same thing again, just turn over and acted like not getting fuel though I no it is along with spark.
Any idea's would be apreciated as always and thanks

mizke · 04-13-2011, 10:09 PM

seems like it could be the jetting is off.. they shouldnt have had to bore the jets..

what kind of carb do you have on them ? if its not the mikuni performance 30mm carb, you might want to think about upgrading as the jets for those are very common standard mikuni jets that are easy to replace so you can fine tune how the quads run by simply adding a larger jet untill it runs right.. there is a lot of info in the atv section on rejetting a quad, i think there is some in the sticky at the top of this page..

FastDoc · 04-13-2011, 11:04 PM

Could you have a kink in the fuel line? I've seen that be a problem.

Weldangrind · 04-13-2011, 11:10 PM

To piggyback on Doc's logic, I wonder if the petcock has a filter that might be clogged. Is there a petcock on the tank that the fuel hose connects to, or does the hose simply connect to a barb?

dyna · 04-14-2011, 07:44 AM

atv has no pet cock and there are no kinks in fuel line. Note that came back with returned carbs from the mech. said he adjusted float bowls and jetted carbs for his area (Mich. & I live in wa. state)and then mentioned how to lean or inrich carbs which ever the case may be needed for my area.
Figured if the carb I placed in the atv that ran pretty good worked fine before sending carbs off, then the carb I placed in the atv I had to tow home ,should have been also and there for there must be another issue with the atv it self as it's seem to be the main problem child.
If it's the enricher and it doesn't want to run when throttle is wide open and it just wants to bog down and pop when throttled and doe's not want to restart after dying, which do I need the carb to be "Richer or Leanerso I no which way to adjust the screw. Also can this be a CDI- issue ?
Worst case senario I can swap carbs and see what happens then but it's a pain. Thanks again for the advise.

dyna · 04-14-2011, 07:47 AM

for got to mention brand of carbs are unknown to me though the sellsman did say they were japanese and good carb's.

katoranger · 04-14-2011, 08:37 AM

Doc, sounds like he is requesting a house call.

FastDoc · 04-14-2011, 11:57 AM

Quote:

Originally Posted by katoranger

Doc, sounds like he is requesting a house call.

What's his insurance? 8)

dyna · 04-14-2011, 10:08 PM

Ok guys, here's new info for some possible solutions.
atv starts up fine but don't want to take full throttle untill some feathering of the throttle is done and eventualy proper throttle response is gained. After shutting down, I have found my sprak disapears at plug until it sits awhile and then the cycle is repeated with throttle responce worked thru ,atv ran and then loss of spark at plug till it sits awhile again and on and on.
What do I have going on here ? a bad coil or CDI, Both ? as fuel issue or carb issue doe's not seem to be the issue
Thanks for any solutions people may have.

Weldangrind · 04-14-2011, 10:16 PM

Have you changed the plug? If not, pop a new NGK in there.

dyna · 04-15-2011, 07:40 AM

new nkg plug installed so this isn't issue. Has to be some thing electrical is my guess since I'll have spark one moment and none the next. Also because of my throttle issue, would think that it is connected to it also. Have read that a coil,cdi,stator, can all be possible culprits. any way to elemenate each, one at a time with out purchasing one of each ?
or any more idea's what can be causing this I haven't checked or read about yet ? thanks

TeamCheap · 04-15-2011, 07:56 AM

I got to ask......why two threads on the same thing ???

Weldangrind · 04-15-2011, 01:06 PM

Agreed. Please post your question in one relevant thread, and people will find it.

My guess is the CDI.

dyna · 06-19-2011, 02:42 PM

Both my atv 250-E tao's rear brakes drag causing slow down and my calipers to get overly hot.
Any suggestions that will end this delima. Thanks

04-13-2011, 10:01 PM	#1
dyna Join Date: Apr 2011 Posts: 28	More help needed As mentioned in previous post,I bought 2-new taotao 250E, towed one home after 20-min. use because it died and would not restart. Acted like not getting fuel, though fuel was fine as was spark. Told to send carbs back to have jets bored so more fule would be had. Place one returned carb into atv that ran ok when bought and had no issues during my 10-test MIn ride. Placed 2nd carb in atv I towed home and it fired right up, but when given full throttle it would not take it and just sputtered. let off throttle it ran a few seconds and then died. Tried restarting and it just turned over and acted like it wasn't getting fuel again. it sat a few seconds, started then died and same thing again, just turn over and acted like not getting fuel though I no it is along with spark. Any idea's would be apreciated as always and thanks
	0

04-13-2011, 10:09 PM	#2
mizke Join Date: Aug 2010 Location: austin, tx Posts: 1,452	seems like it could be the jetting is off.. they shouldnt have had to bore the jets.. what kind of carb do you have on them ? if its not the mikuni performance 30mm carb, you might want to think about upgrading as the jets for those are very common standard mikuni jets that are easy to replace so you can fine tune how the quads run by simply adding a larger jet untill it runs right.. there is a lot of info in the atv section on rejetting a quad, i think there is some in the sticky at the top of this page.. __________________ 200cc beast replica,carsoli cdi,performance coil,fmf powercore 2,uni air filter,hour/tach meter,jetted mikuni carb,msr bars,moose racing grips,yz250f clutch perch,D.I.D chain
	0

04-13-2011, 11:04 PM	#3
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	Could you have a kink in the fuel line? I've seen that be a problem. __________________ Happy to serve.
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04-13-2011, 11:10 PM	#4
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	To piggyback on Doc's logic, I wonder if the petcock has a filter that might be clogged. Is there a petcock on the tank that the fuel hose connects to, or does the hose simply connect to a barb? __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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04-14-2011, 08:37 AM	#7
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	Doc, sounds like he is requesting a house call. __________________ You meet the nicest people on a Honda Clone.
	0

04-14-2011, 07:44 AM	#5
dyna Join Date: Apr 2011 Posts: 28	atv has no pet cock and there are no kinks in fuel line. Note that came back with returned carbs from the mech. said he adjusted float bowls and jetted carbs for his area (Mich. & I live in wa. state)and then mentioned how to lean or inrich carbs which ever the case may be needed for my area. Figured if the carb I placed in the atv that ran pretty good worked fine before sending carbs off, then the carb I placed in the atv I had to tow home ,should have been also and there for there must be another issue with the atv it self as it's seem to be the main problem child. If it's the enricher and it doesn't want to run when throttle is wide open and it just wants to bog down and pop when throttled and doe's not want to restart after dying, which do I need the carb to be "Richer or Leanerso I no which way to adjust the screw. Also can this be a CDI- issue ? Worst case senario I can swap carbs and see what happens then but it's a pain. Thanks again for the advise.
	0

04-14-2011, 07:47 AM	#6
dyna Join Date: Apr 2011 Posts: 28	for got to mention brand of carbs are unknown to me though the sellsman did say they were japanese and good carb's.
	0

04-14-2011, 10:08 PM	#9
dyna Join Date: Apr 2011 Posts: 28	Ok guys, here's new info for some possible solutions. atv starts up fine but don't want to take full throttle untill some feathering of the throttle is done and eventualy proper throttle response is gained. After shutting down, I have found my sprak disapears at plug until it sits awhile and then the cycle is repeated with throttle responce worked thru ,atv ran and then loss of spark at plug till it sits awhile again and on and on. What do I have going on here ? a bad coil or CDI, Both ? as fuel issue or carb issue doe's not seem to be the issue Thanks for any solutions people may have.
	0

04-14-2011, 10:16 PM	#10
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Have you changed the plug? If not, pop a new NGK in there. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

04-15-2011, 07:40 AM	#11
dyna Join Date: Apr 2011 Posts: 28	new nkg plug installed so this isn't issue. Has to be some thing electrical is my guess since I'll have spark one moment and none the next. Also because of my throttle issue, would think that it is connected to it also. Have read that a coil,cdi,stator, can all be possible culprits. any way to elemenate each, one at a time with out purchasing one of each ? or any more idea's what can be causing this I haven't checked or read about yet ? thanks
	0

04-15-2011, 07:56 AM	#12
TeamCheap Join Date: Jun 2006 Location: directly under the earths sun............NOW Posts: 2,302	I got to ask......why two threads on the same thing ???
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04-15-2011, 01:06 PM	#13
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Agreed. Please post your question in one relevant thread, and people will find it. My guess is the CDI. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

06-19-2011, 02:42 PM	#14
dyna Join Date: Apr 2011 Posts: 28	rear brakes Both my atv 250-E tao's rear brakes drag causing slow down and my calipers to get overly hot. Any suggestions that will end this delima. Thanks
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