Syncing Carbs

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13 May 2013 10:01 #587142 by Brian.Wolf
Syncing Carbs was created by Brian.Wolf
I have a 1981 kz 750 BUT i have kz1000 carbs on it. Im not sure what year or model but i know one of the adjustment screws are on top of the carb on motor side and the top of the carb is more a a circle shape than the long and narrow one. Im just wanting to know how to sync them. Help me please. im so confused

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13 May 2013 10:32 #587144 by KZQ
Replied by KZQ on topic Syncing Carbs
Hi Brian,

Welcome to KZR.

I'm pretty sure that you're describing constant velocity carbs "...the top of the carb is more a a circle shape than the long and narrow one..." Pics would help. How do you know you have kz1000 carbs? Do you know the year?

Bill
www.KZ1300.com
Riders:
1968 BSA 441 Shooting Star, 1970 BSA 650 Lightning, 1974 W3, 1976 KZ900, 1979 KZ750 Twin, 1979 KZ750 Twin Trike, 1981 KZ1300, 1982 KZ1100 Spectre, 2000 Valkyrie, 2009 Yamaha Roadliner S. 1983 GL 1100
Projects:
1985 ZN1300

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13 May 2013 12:04 #587154 by baldy110
Replied by baldy110 on topic Syncing Carbs
What you have should be the Mikuni BS34 CV carbs. To synch them you need special equipment. It is really not that hard once you have the correct equipment. What makes you think they need to be synched?

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13 May 2013 12:36 #587163 by Brian.Wolf
Replied by Brian.Wolf on topic Syncing Carbs
The bike runs just not just not very well and bogs down when given throttle. 2 of the spark plugs keep fouling out and two seem fine. After about 30 seconds of running the #2 and #3 exaust isnt hot like the other ones. i can touch them but the other ones are really hot. I cleaned the carbs twice but i still cant get the thing to run right. I can post pictures later today if you think you can help . Thanks

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13 May 2013 13:38 #587180 by Brian.Wolf
Replied by Brian.Wolf on topic Syncing Carbs
what the bike does is it will start but idle really high at first then come down to a really low idle and run really rough i think only on 2 cyclendres and as soon as i give it any gas at all it dies. whats the problems ?

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13 May 2013 13:52 #587183 by baldy110
Replied by baldy110 on topic Syncing Carbs
Has the bike ever ran good with these carbs, if so when did they start doing this?

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13 May 2013 14:38 #587188 by Brian.Wolf
Replied by Brian.Wolf on topic Syncing Carbs
yes they did but then they sat awhile and i swtiched motors.

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13 May 2013 15:34 #587199 by Patton
Replied by Patton on topic Syncing Carbs
What's spark quality on #2/3 plugs?

Good Fortune! :)
1973 Z1
KZ900 LTD

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13 May 2013 16:27 #587206 by bluezbike
Replied by bluezbike on topic Syncing Carbs
When you switched motors were they the same size/type (ie. both 750's) and did you check valve clearances especially on the 2 + 3 cylinders on the current motor?
79 KZ 1000 LTD
77 KZ 1000 B1 LTD (awaiting electrical resurrection)

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14 May 2013 12:23 #587346 by Brian.Wolf
Replied by Brian.Wolf on topic Syncing Carbs
no and i have no clue on how to check valve clearance. I dont even know where to start

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14 May 2013 12:32 #587351 by 650ed
Replied by 650ed on topic Syncing Carbs
You really should invest in a Kawasaki Service Manual. No owner of a KZ should be without one. They usually are available on eBay, just be sure to get one for your exact year/model bike as there are differences. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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14 May 2013 17:35 #587413 by bluezbike
Replied by bluezbike on topic Syncing Carbs
+1 on what 650 Ed says, also make sure it is a Factory Service Manual and not a Clymer as there are a few key booboos to avoid. Next thing to buy is a good set of feeler guages (I prefer metric ones as it is a metric bike) Napa sells them for about $12. Then search in the engine section on valve clearance to get some idea of how and certainly why it needs to be done. And have fun :)
79 KZ 1000 LTD
77 KZ 1000 B1 LTD (awaiting electrical resurrection)

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