andy188
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| posted on 11/9/14 at 07:31 PM |
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zx9b carbs
hi all,
have fitted zx9b carbs to sons 2.1 pinto, running fast road cam, have changed jets to 1,5 as a starter point, idle screws out 2,5 turns, carb 1
running dry, carb 2 wet, 3 wet wet no 4 wet wet wet, popping back through exhaust and no 4 carb, have read about blocking air correction jet, whitch
one is this, any ideas on how to fix before getting it to a rolling road for final setup.
Thanks
Andy
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maccmike
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| posted on 11/9/14 at 07:44 PM |
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set the floats
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davidimurray
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| posted on 11/9/14 at 08:09 PM |
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Have you balanced them, if not your symptons sound like they need balancing.
Gallery 1 http://www.facebook.com/media/set/?set=a.116893465324.130778.601005324
Gallery 2 http://www.facebook.com/media/set/?set=a.245243755324.181913.601005324&l=a9831a9319
Gallery 3 http://www.facebook.com/media/set/?set=a.440671625324.232627.601005324&l=3f0d42c523
Gallery 4 http://www.facebook.com/media/set/?set=a.490098255324.297598.601005324&l=efb083b7df
Gallery 5 http://www.facebook.com/media/set/?set=a.10150244028550325.366987.601005324&l=583fd5cd3a
Gallery 6 http://www.facebook.com/media/set/?set=a.10150550640070325.430417.601005324&type=3&l=fe779b358c
Duratec Engine Swap https://www.facebook.com/media/set/?set=a.10152527759580325.1073741828.601005324&type=1&l=40aae5e72f " target="_blank"> https://www.facebook.com/media/set/?set=a.10152527759580325.1073741828.601005324&type=1&l=40aae5e72f
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jacko
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| posted on 11/9/14 at 08:10 PM |
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balance the carbs and 1.5 is a bit small for a 2.1 pinto mine was/ is 1.7 zx9r / e carbs
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austin man
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| posted on 11/9/14 at 09:40 PM |
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mine are 1.7 on a 1,8 Zetec
Life is like a bowl of fruit, funny how all the weird looking ones are left alone
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19sac65
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| posted on 12/9/14 at 03:23 AM |
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Mine are 1.8 on a zetec
I would have thought it would run though,just not rev cleanly
If theres no fuel getting in i would make sure the carbs are clean,remove the jets and float valves and soak them
Is there fuel in the float chambers ?
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davidimurray
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| posted on 12/9/14 at 05:49 AM |
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Don't worry about the main jet yet.
Idle and pilot circuit controls roughly 0 to 20% throttle
Needle controls 20 to 75% throttle
Main jet controls 75 to full throttle
Gallery 1 http://www.facebook.com/media/set/?set=a.116893465324.130778.601005324
Gallery 2 http://www.facebook.com/media/set/?set=a.245243755324.181913.601005324&l=a9831a9319
Gallery 3 http://www.facebook.com/media/set/?set=a.440671625324.232627.601005324&l=3f0d42c523
Gallery 4 http://www.facebook.com/media/set/?set=a.490098255324.297598.601005324&l=efb083b7df
Gallery 5 http://www.facebook.com/media/set/?set=a.10150244028550325.366987.601005324&l=583fd5cd3a
Gallery 6 http://www.facebook.com/media/set/?set=a.10150550640070325.430417.601005324&type=3&l=fe779b358c
Duratec Engine Swap https://www.facebook.com/media/set/?set=a.10152527759580325.1073741828.601005324&type=1&l=40aae5e72f " target="_blank"> https://www.facebook.com/media/set/?set=a.10152527759580325.1073741828.601005324&type=1&l=40aae5e72f
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mcerd1
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| posted on 12/9/14 at 08:19 AM |
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as above float heights and balance are the first things to check
but we might as well ask what fuel pump your using too ?
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andy188
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| posted on 12/9/14 at 05:26 PM |
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thanks 4 advise all, will check float height, we are using bike fuel pump, will buy a balancer as there are 3 kits in the family which will be running
bike carbs, need to get a single intake one as pinto zx9 have been respaced, any recommendations?.
how can we confirm what model carbs we have?, have googled but not sure, these have no tps on them.
Thanks
Andy
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19sac65
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| posted on 12/9/14 at 05:30 PM |
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You can find out if theres fuel in the bowl by undoing the drain screw in the bottom of the bowls
Without vac points on the manifold use a carb synchroniser for webers/ dellortos
On ebay for about £35
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