rebuilt carbs..still running poorly

  • minibikepilot
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rebuilt carbs..still running poorly

25 May 2014 12:19
#633940
OK..I have had my 1980 kz1000 shaft carbs completely gone through..cleaned, jetted, etc...

it starts up great on choke....but when the choke is off..it sputters and bogs when i try to give it gas....
I hooked up the vacuum line to the #3 carb? wanted to make sure i have it hooked up right before i start turning screws..
like i said on choke it runs great no bog or sputtering

off choke, poor idle, popping, bogs out with acceleration

any help would be greatly appreciated...

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Re: rebuilt carbs..still running poorly

25 May 2014 13:22
#633947
Are all the vacuum ports on the carb holders capped? Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: rebuilt carbs..still running poorly

25 May 2014 13:47
#633949
no

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Re: rebuilt carbs..still running poorly

25 May 2014 14:52
#633950
minibikepilot wrote: no

They should be. Cap them and see how it runs. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: rebuilt carbs..still running poorly

25 May 2014 15:24
#633953
Capped them same issue.

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Re: rebuilt carbs..still running poorly

01 Jun 2014 16:26
#634921
I have made small clockwise turns to each air screw. About an 8 th to 1/4. Still a little spitting out of 4th carb. Do I still keep turning until it sounds right?

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Re: rebuilt carbs..still running poorly

01 Jun 2014 16:59
#634924
Are you using the stock air box and air filter? Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: rebuilt carbs..still running poorly

01 Jun 2014 17:16
#634928
Jetted for 4:1 kerker. Cleaned rejetted synced. Aftermarket pods. Vacuum hose hooked up to #3 carb. Others capped off. Just popping and spitting on low idle rpms

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Re: rebuilt carbs..still running poorly

01 Jun 2014 17:27
#634933
Sounds like more jetting work required to make it run ok with pods. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: rebuilt carbs..still running poorly

01 Jun 2014 17:32
#634934
Nah. Just a few more tweaks I believe. But this has plagued me for months. Might just sell it and go for a fuel injected kawi

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Re: rebuilt carbs..still running poorly

03 Jun 2014 05:27
#635111
So I made it run a little richer and it's doing better but I'm not 100% confident yet. Seems like I had to make several clockwise adjustments but it's running better.

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