jetting \"standard\" kz 1200

  • martijn
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jetting \"standard\" kz 1200

16 Jul 2006 13:02
#62408
has anyone a sugestion for jetting a bored 900 to 1200 cc. At this moment al standard except bored to 1200 cc (28mm carbs)

thanks Martijn

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  • donthekawguy
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Re: jetting \"standard\" kz 1200

16 Jul 2006 14:28
#62427
You might want to start with around a 122 main. Do you pods, header and such?
Rathdrum Idaho
1971 Kawasaki g3ss
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1964 Yamaha 125

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  • wiredgeorge
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Re: jetting \"standard\" kz 1200

17 Jul 2006 07:21
#62566
Jetting kind of depends on WHICH 28mm carbs, what type airbox, what type pipes, what compression, what cams, non-stock porting and other issues. With no information to work with, any guess I could make would definitely be most likely wrong.
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  • martijn
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Re: jetting \"standard\" kz 1200

18 Jul 2006 02:02
#62802
Hello George

All standard except the marshall 4 into 1 exhaust. The carbs are the standard 28mm.

What about the compression I think it is knocking!! due to standard cams etc with 1200cc???

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  • wiredgeorge
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Re: jetting \"standard\" kz 1200

18 Jul 2006 06:09
#62841
They put VM28 carbs on Kaws in 73, 74, 75, 78, 79 and 80. Most all of them were jetted differently. To rejet, you must have a baseline. You have a stock airbox? Stock compression with 1200 pistons?
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  • martijn
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Re: jetting \"standard\" kz 1200

18 Jul 2006 07:41
#62873
Yes, stock airbox and filter and wiseco pistons with specified compression of 1 to 12.25.

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  • wiredgeorge
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Re: jetting \"standard\" kz 1200

19 Jul 2006 13:24
#63197
Well, without knowing the type of VM28, I am going to guess at jetting and say leave the jets in the carbs you have alone. If your pipes turn blue or the bike overheats, go up in size on the main and pilot jets.
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