nehmo
Scoot Member
Posts: 21
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Post by nehmo on Dec 10, 2017 11:09:06 GMT -5
We bought a Tao Tao ATM50 from Scooter Madness, and it looks fine. However, right out of the box, the new bike won't start (with gas).
It gets spark, and I can start it momentarily by spraying starter fluid. It also is getting gas at the hose going to the carburetor.
(I have a theory, but I don't want to influence the answers, so I won't say what I think.) I contacted Scooter Madness, and they send a few emails about common problems. Now, they seem to have stopped replying. Opinions, please?
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Post by benji on Dec 10, 2017 12:48:10 GMT -5
It's probably the carb. Google what carb you have and then Google how to take it apart. Probably needs to be cleaned or something may be mis-adjusted, but you won't know til you understand what your looking at in there. You may be able to find the answers on this site, lots of members have tao taos. But your gonna have to look around to find em.
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nehmo
Scoot Member
Posts: 21
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Post by nehmo on Dec 10, 2017 15:54:49 GMT -5
It's probably the carb. Google what carb you have and then Google how to take it apart. Probably needs to be cleaned or something may be mis-adjusted, but you won't know til you understand what your looking at in there. You may be able to find the answers on this site, lots of members have tao taos. But your gonna have to look around to find em. I guessed the problem is clogged jet in the carburetor (what else could it be?), but I couldn't figure out how that could have happened on a new engine. I was about to take the carburetor off, disassemble it, and clean it. But then I thought if I'm going to do that, I might as well get a better carburetor (that I've heard people talk about) or get a rebuild kit. My repair was stalled at that point. However, after starting this thread (I don't know if it's more than a correlation), Scooter Madness emailed me offering to send a new carburetor. Of course, I replied, "yes". I'm almost positive that will solve the problem, assuming the new carburetor is in working condition. So, has anybody figured out how to buy from Tao Tao directly? That is, without going through these state-side distributors?
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Post by scooterpimp on Dec 10, 2017 16:20:58 GMT -5
Float needle may be stuck closed? Getting any gas when bowl drain screw is loosend?
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Post by benji on Dec 10, 2017 16:41:25 GMT -5
I'm pretty sure in the tech section there is a thread called "new scooter pdi" and it should be very helpful to you. Before you spend money on hi-performance parts I'd learn how to get what you have running. You were rright to accept the free carb- you may need one in the future if not now, or you can sell it. Year make n model of scooter will help us help you alot.
Sorry, just saw tao tao atm50 at the top. I get used to saying that I guess.
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nehmo
Scoot Member
Posts: 21
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Post by nehmo on Dec 10, 2017 18:36:48 GMT -5
I'm pretty sure in the tech section there is a thread called "new scooter pdi" and it should be very helpful to you. Before you spend money on hi-performance parts I'd learn how to get what you have running. You were rright to accept the free carb- you may need one in the future if not now, or you can sell it. Year make n model of scooter will help us help you alot. Sorry, just saw tao tao atm50 at the top. I get used to saying that I guess. I don't know what you're sorry about. I appreciate the response. benji I didn't know the bowl had a drain screw. I'll have to see if there is one. (The scooter is not with me here.) The pic is from the web - not from my scooter.
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Post by benji on Dec 10, 2017 20:07:38 GMT -5
You should be able to take the bowl off and access both jets. Clean em out with carb cleaner n reassemble. You may have to kick the motor over quite a bit before the carb is full of fuel after you put it back together. Also, a small squirt of carb cleaner down the spark plug hole for luck won't hurt (much).
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Post by pinkscoot on Dec 11, 2017 15:56:21 GMT -5
Make sure that you clean the new one. Sometimes there are bits in new carbs that can clog jets. Have you checked the valve clearance?
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Post by greginisn on Dec 11, 2017 23:35:05 GMT -5
Try this www.eagleatvparts.com If not what you want check with advertisers on this forum or Amazon. Also, like Pink suggested, check the valve clearance. My taotao arrived with the valves too tight, altho it would start. Good luck, Greg
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nehmo
Scoot Member
Posts: 21
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Post by nehmo on Dec 14, 2017 1:01:24 GMT -5
Scooter Madness just sent me an email asking me to pick the carburetor I wanted from partskit.com , and they would order it for me. I thought Scooter Madness would do the choosing, and I thought they had an inventory on hand. But they don't, apparently. I think this one Pz119 is the correct one. Does everybody agree? The list of applicable models doesn't list the Tao Tao ATM50, but it seems to list similar Tao Taos. It doesn't quite look like the one on the scooter.
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Post by cagiva4ever on Dec 14, 2017 10:56:46 GMT -5
Not all 139QMB or QMA CVK's look the same. it doesnt matter. What matters is to know how they are properly Checked/Adjusted (i.e critical Float Height) and and Jetted.
there is basically about 5~10 diff Manufac, little bit diff 139QMb QMA carbs.....Codes varie. PZ19 among CVK markings is on the not-common group.
that linked carb looks correct. i have Deni's ,PD18J ,PD19J ,XY19. and very rare hybrid FlatSlide CVK's from early 2000~2003'ish made "10 139QMB scooters and some "12 QMA's.
what ever Carb you choose as a Warranty item, CHECK all of its basics when its in your hands. -diaphrams immediatelly when they still are DRY from gasoline... -float height -jetting and Needle - E-choke pinout - acceleration pump function and its Progressive lever to be in correct bended shape... etc.
Do not just Slap it on and pray for best outcome, as is, as factory finished.
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nehmo
Scoot Member
Posts: 21
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Post by nehmo on Dec 14, 2017 16:42:17 GMT -5
Not all 139QMB or QMA CVK's look the same. it doesnt matter. What matters is to know how they are properly Checked/Adjusted (i.e critical Float Height) and and Jetted. there is basically about 5~10 diff Manufac, little bit diff 139QMb QMA carbs.....Codes varie. PZ19 among CVK markings is on the not-common group. that linked carb looks correct. i have Deni's ,PD18J ,PD19J ,XY19. and very rare hybrid FlatSlide CVK's from early 2000~2003'ish made "10 139QMB scooters and some "12 QMA's. what ever Carb you choose as a Warranty item, CHECK all of its basics when its in your hands. -diaphrams immediatelly when they still are DRY from gasoline... -float height -jetting and Needle - E-choke pinout - acceleration pump function and its Progressive lever to be in correct bended shape... etc. Do not just Slap it on and pray for best outcome, as is, as factory finished. The linked Carburetor is the only automatic choke one on that site that states compatibility with Tao Tao 50s (although with somewhat different model numbers than my ATM50). It looks considerably different than the original too. Mine looks like the first pic in this thread, the one with its parts labeled. But I'm going with linked one. It probably fits. I'll take your advice regarding checking everything. I'm not sure how to adjust the Progressive lever, but I'll learn. Thanks.
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Post by cagiva4ever on Dec 14, 2017 19:16:08 GMT -5
regarding acceleration pump's lever. "its not adjustable" in purpose as a Design, but it can be Diss-formed, bend into wrong shape. on these cases Comparison photos are the Cure.
Biggest and most important difference on these 2 linked Carbs is the Float Bowl surface type. exactly the difference is on Fundimentals of the Float Height measurement basics.
all rest mechanicals are equals in Terms of Function and Construction. Yours being Taotao, FloatBowl drain system may varie in 2 diff constructions...
anyway, as you are getting warranty carb, you will still have the original, and its Still Fully fixable and modd-able, no matter if its EPA anti tamper proofed...
this is a win-win Case for you.
i have once heard in my own Country that new factory made China carb had humans loose tooth inside its floatbowl (from the owner itself). everything is possible......
-"I might as well get a better carburetor (that I've heard people talk about" this 99,9% in cases is Due people not having Skills to undo "EPA anti-tamper" obstructions from carb....or even knowing how to Shim a Needle, that doesnt have any notches due EPA.... rest is from people Who do BBK install and use then aftermarket 20mm CVK's.
so it can be Miss-leading, out of real context.......tru reasons....
regarding your factory made assemblyed Scooter, notice that very very often the Stock 139QMB/QMA OEM fuel lines dont endure ethanol content petrols. OEM fuel lines Diss-solve commonly black'ish "gunk" from their internals....Due them fuel lines being 2-skin/core versions...and made from "China rubber"....commonly Grey from outside Skin and black from inner skin.....
there are so many things that can be Mangled or wrongly adjusted at China assembly. for instance, how many people even bother to check if Fuel-ratio screw's tip isnt bend/mangled/over tightened.
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Post by crawford on Dec 15, 2017 20:32:54 GMT -5
pull off gas line a carb it not look at tank for fuel shut off or open gas cap see if flow
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nehmo
Scoot Member
Posts: 21
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Post by nehmo on Dec 18, 2017 8:02:06 GMT -5
pull off gas line a carb it not look at tank for fuel shut off or open gas cap see if flow The fuel flow to the carburetor is fine. But thanks for the suggestion. At this point, the solution is to get the replacement carburetor from Scooter Madness, inspect & install it, and then start.
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