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atc70 carb help

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millsi
Blaster class


Joined: 26 Jan 2008
Posts: 124

PostPosted: Sat Jan 09, 2010 9:11 am Post subject: atc70 carb help Reply with quote Back to top

hey guys, got a couple of rebuild kits (thanks heaps ric), now there appears to be more parts ion the rebuild kits than there is on the 70 carbs (78 and 82 models)?? does anyone know if these kits (keystar) are meant to cover several models of carb, or am i just not pulling the carb down enough to get to all of the parts?
also does anyone know the factory setting for the 70 carbs, needle clip, what jets, how many turns out on the idle screw etc?
cheers
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70s FTW!

1974 Atc 70 custom
1982 Atc 70 for the mrs
1985 Atc 70
 
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millsi
Blaster class


Joined: 26 Jan 2008
Posts: 124

PostPosted: Sat Jan 09, 2010 10:27 am Post subject: Reply with quote Back to top

ok turns out i wasnt paying enough attention. runs heaps better now, put the clip in the middle position. seems to die though if i give it anything over 1/4 throttle when idling.
_________________
70s FTW!

1974 Atc 70 custom
1982 Atc 70 for the mrs
1985 Atc 70
 
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HaggLE
Roostin Away


Joined: 16 Mar 2009
Posts: 511
Location: Newcastle

PostPosted: Mon Jan 11, 2010 6:28 am Post subject: Reply with quote Back to top

Have you got the standard air filter on it? Which air filter you have on it will affect the jetting.
 
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millsi
Blaster class


Joined: 26 Jan 2008
Posts: 124

PostPosted: Mon Jan 11, 2010 10:55 am Post subject: Reply with quote Back to top

yeah stocko filters, gone richer on the needle on the 78 and its running heaps better.
_________________
70s FTW!

1974 Atc 70 custom
1982 Atc 70 for the mrs
1985 Atc 70
 
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atc250r
90cc 2 stroke / 110 4 stroke


Joined: 05 Dec 2007
Posts: 94
Location: Geraldton WA

PostPosted: Mon Feb 15, 2010 10:37 pm Post subject: Reply with quote Back to top

my brother cuttin up my backyard on the 74 atc70 that he just finished restoring last year

http://www.youtube.com/user/hxr400#p/a/u/0/TP6GqFLDk90
 
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