Updating Carb system!!!

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27 Jan 2010 14:24 #344937 by jacosort1
Updating Carb system!!! was created by jacosort1
Well, this long Minnesota winter is driving me crazy. so i got a project to keep me buisy!

I am currently working with a 1976 kawasaki kz400. Mostly stock besides and aftermarket exhuast kit (2 into 2). BUT, i would like to run an oversized carb set up, and my question is - WILL IT BE POSSIBLE TO RUN A 38MM CARB OFF OF A 1978 YAMAHA XS650, ON MY KZ400? and also if it is possible will it be worth my time to do?

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27 Jan 2010 17:54 #344979 by moneypit
Replied by moneypit on topic Updating Carb system!!!
I would have to say NO, Theres no way that your intake would flow enough for carbs that big. A 900 stock would have a hard time with those I would think but some one with mors knowhow should chime in. By the way where in this cold state are you. BobB)
2-76 kz900
St Paul MN

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27 Jan 2010 17:58 #344981 by keith1
Replied by keith1 on topic Updating Carb system!!!
wayyyy too big and the spacing would probably be off....

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27 Jan 2010 18:10 #344983 by jacosort1
Replied by jacosort1 on topic Updating Carb system!!!
moneypit - thanks for the advice and reply! i am an amature ya gota give me a break! ha But i am from anoka county, i take it your from these parts?

keith1 - might you have any clue or suggestion to the size i should look for or consider? thanks again!

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27 Jan 2010 18:35 #344988 by PLUMMEN
Replied by PLUMMEN on topic Updating Carb system!!!
something more in 24-26mm range i would think if running 2 of them ,i cant remember what that 400 i parted out had for carbs B)
Still recovering,some days are better than others.

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27 Jan 2010 18:58 #344993 by jacosort1
Replied by jacosort1 on topic Updating Carb system!!!
PLUMMEN - thank you very much! i sh'all use this information wisely ;)

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27 Jan 2010 19:01 #344995 by moneypit
Replied by moneypit on topic Updating Carb system!!!
Yeah Im in St Paul
2-76 kz900
St Paul MN

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27 Jan 2010 19:03 #344997 by jacosort1
Replied by jacosort1 on topic Updating Carb system!!!
moneypit - you wouldnt happen to visit first thursday!?

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27 Jan 2010 19:33 - 27 Jan 2010 19:47 #345009 by flht1997
Replied by flht1997 on topic Updating Carb system!!!
The 74'-76' 400's ran 36mm with the later ones going to 32's. The yamaha ones probably will not have the proper spacing, also the spacing is different between the early and late 400's and will not interchange. Oh and by later I mean 1977 and newer with had a slightly different engine
Matt Milwaukee, WI
75' KZ400, (5) 78' KZ400, 76' KZ 750, 78' KZ650
78'CB750F, 78' CB550K
89' BMW R100RT
05' H-D Electra Glide
06' KLR650
Do it right or don't bother doing it at all.
Last edit: 27 Jan 2010 19:47 by flht1997.

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27 Jan 2010 19:38 #345010 by jacosort1
Replied by jacosort1 on topic Updating Carb system!!!
flht1997 - thanks for that insight! but what would you suggest i tear the carbs from, really lost now and dont know what to look for??

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27 Jan 2010 19:45 #345013 by flht1997
Replied by flht1997 on topic Updating Carb system!!!
CVB36's from a 74'-76' kz400 will fit. They have a metal slide so you do not have to worry about a rubber diaphragm going bad. Z1 enterprise has carb kits for them once in awhile. They are kinda a pain to clean with lots of little jets and air bleeds all over the place but quite do-able
Matt Milwaukee, WI
75' KZ400, (5) 78' KZ400, 76' KZ 750, 78' KZ650
78'CB750F, 78' CB550K
89' BMW R100RT
05' H-D Electra Glide
06' KLR650
Do it right or don't bother doing it at all.

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27 Jan 2010 19:58 #345015 by jacosort1
Replied by jacosort1 on topic Updating Carb system!!!
thanks for the input

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