RE: -Official Traxxas JATO Thread-  
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RE: ... - 3/28/2008 3:22:28 AM   
motorhead91


 

Posts: 741
Joined: 2/15/2007
From: covington, OH, USA
Status: offline 		make sure you prime it,

what percentage are you running?

what plug are you running?

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       Post #: 2701

RE: ... - 3/28/2008 3:27:06 AM   
autoart4you


 

Posts: 141
Joined: 1/26/2008
From: Cookeville, TN, USA
Status: offline 		yes, i do prime it good i have clear full tube so i can see when it's primed and i run 20% the plug i don't know i just got it and the guy said he just put a new plug in so i haven't took it out yet

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If you can''t race it or take it to bed,
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       Post #: 2702

RE: ... - 3/28/2008 3:36:20 AM   
motorhead91


 

Posts: 741
Joined: 2/15/2007
From: covington, OH, USA
Status: offline 		take it out and see what it looks like, and if anything is written on the side...( i.e. : os 8, mc-9, etc..)

it will be easier to start if you run a hot plug...

it sounds like you could be running to cold of a plug, or bad fuel

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       Post #: 2703

RE: ... - 3/28/2008 3:47:50 AM   
autoart4you


 

Posts: 141
Joined: 1/26/2008
From: Cookeville, TN, USA
Status: offline 		ok, i just pulled the plug and i don't see anything written on it? dose that mean it's a cheep plug? it dose look like the coil is not in a perfect spring shape and the coil is sticking out some? do you think this may be my problem? and what plug should i get? and thanks for your help motorhead91 i'v been trying all week to tune the problem away with no luck

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If you can''t race it or take it to bed,
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       Post #: 2704

RE: ... - 3/28/2008 6:40:26 AM   
TIG-1


 

Posts: 13
Joined: 2/23/2008
From: Oakland, CA, USA
Status: offline 		Hiya,


I just got a new jato & today, i went out to the parking lot to fire it up. It started right up & all but it wouldn't move,,,LOL. Almost like the brakes were locked or something. I gave it a couple small throttle jabs but ,alas,no go so i just shut it down. It rolls fine if i push it along, just won't go with motor power. Can anyone help me out on this?

TIA.

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       Post #: 2705

RE: ... - 3/28/2008 8:30:16 AM   
autoart4you


 

Posts: 141
Joined: 1/26/2008
From: Cookeville, TN, USA
Status: offline 		i'd say it's the clutch

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If you can''t race it or take it to bed,
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       Post #: 2706

RE: ... - 3/28/2008 7:07:23 PM   
Nick2618



Posts: 3642
Joined: 3/15/2007
From: Sarasota, FL, USA
Status: offline
quote:

ORIGINAL: autoart4you

ONE MORE PLEA FOR HELP I have a stock jato 3.3 that will start right up on the 1st try but, when it gets warmed up and cuts off "cuz. it flipped upside-down, ran out of gas or i cut it off" then it won't start back up?(well just takes forever 2 start) i think i have a good tune? it will pull the wheels up at almost any speed and when it's warmed up it runs at 260F., and has some smoke. it has been about 60F. where i live. i'm new to rc so any help will be greatly appreciated if you need more info on my set up? just ask THANKS!


HOw old is the engine? THat is signs of a warn out engine. When it heats up the piston and sleeve are expanding and you are losing comprasion. I would say go back to factory settings and try to retune to see if that helps.

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       Post #: 2707

RE: ... - 3/28/2008 7:13:08 PM   
autoart4you


 

Posts: 141
Joined: 1/26/2008
From: Cookeville, TN, USA
Status: offline 		i got it used so i don't know how old it is. i have went back to the factory settings with no improvement. what all should i get to rebuild it? and thanks 4 the help!!

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If you can''t race it or take it to bed,
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       Post #: 2708

RE: ... - 3/28/2008 7:53:26 PM   
Nick2618



Posts: 3642
Joined: 3/15/2007
From: Sarasota, FL, USA
Status: offline 		There is a few things you can do. I would say take apart the engine and if everything in there looks good and its not all rusted you can do this

http://cgi.ebay.com/Resizing-futaba-ko-airtronics-mugen-ofna-kyosho-losi_W0QQitemZ180227441076QQihZ008QQcategoryZ19167QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

You send them your piston and sleeve and they resize it. The engine will run like new again but will require break in. That is the cheapest method.

Or you could go on ebay and buy a new TRX 3.3 or get a OS .18 or the new .21 one engine.


I forgot to mention this eariler but if a engine shuts off once it heats up it could be vapour lock. Which is caused the the carb getting so hot it burns the fuel up before it reaches the engine. TO fix that you just go back to factory and retune. I see you already went back to factory and your problem did not change. So this is for anyone eles who might ahve a similar problem.

< Message edited by nick2618 -- 3/28/2008 7:55:08 PM >

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RE: ... - 3/28/2008 9:33:06 PM   
Oliver_Klozov


 

Posts: 628
Joined: 1/22/2007
From: Hamiltonontario, CANADA
Status: offline 		thx alot nick thats a good piece of advice..

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My cars include MT2 .18SS, RC10GT and a Jato with an OS .18 TZ ebmodded

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       Post #: 2710

RE: ... - 3/28/2008 9:36:55 PM   
Oliver_Klozov


 

Posts: 628
Joined: 1/22/2007
From: Hamiltonontario, CANADA
Status: offline 		you should try richening it if it smokes tonnes and works chances are the motor is done and you need to get it rebuilt or buy a new one.. richer on the top end if you can get it to idle. i had an old cvr like that you should see the video. heres the link

http://www.rcuvideos.com/item/K68T6V6BY164YBXB




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My cars include MT2 .18SS, RC10GT and a Jato with an OS .18 TZ ebmodded

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RE: ... - 3/28/2008 9:39:18 PM   
Oliver_Klozov


 

Posts: 628
Joined: 1/22/2007
From: Hamiltonontario, CANADA
Status: offline 		sorry but i read your post again and do the wheels spin is the remote setup correct to open the carb and release the brakes. did you get a manual with it? if not go to www.traxxas.com and download the manual from the support section usually located at the top right hand side of the screen.

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My cars include MT2 .18SS, RC10GT and a Jato with an OS .18 TZ ebmodded

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       Post #: 2712

RE: ... - 3/29/2008 2:41:09 AM   
stinkypinky



Posts: 298
Joined: 3/25/2007
From: harrisburg, PA, USA
Status: offline 		reverse your throttle servo? check tranny for over tightened screws? loss of compression? clutch shoes on backwards? clutch shoes on backwards? clutch shoes on backwards?

< Message edited by stinkypinky -- 3/29/2008 2:44:07 AM >

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RE: ... - 3/29/2008 3:36:02 AM   
scottywilkes



Posts: 2794
Joined: 10/21/2005
From: launceston, AUSTRALIA
Status: offline 		the clutch shoes will still enguage if there no backwards, with leading edge, aka backwards, they bite harder wen they enguage

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