KZ 750 with pods and V&H jet question

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KZ 750 with pods and V&H jet question

18 May 2010 04:22
#368685
I'm rebuilding the Keihin carbs on my 82 KZ 750 with pod air filters and a Vance and Hines exhaust. What size jets should I use for this combo? (I will be tuning it on a dyno once I get my cylinder head back from LarryC).
1982 KZ750 E
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  • chrispysaki
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Re: KZ 750 with pods and V&H jet question

18 May 2010 12:52
#368784
I have an '80 750-4 with pods, 4-1 Kerker and GPZ cams. I was using 68 & 130 jets, which I think are two or three sizes up from stock. It was running way too lean with those, so I just ordered 72 and 140 today from Z1. I'm also planning on doing some mild porting, so I wanted the new jet sizes to account for that as well.

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Re: KZ 750 with pods and V&H jet question

18 May 2010 16:33
#368818
I'm probably better off purchasing a Dynojet Stage 1 & 3 jet kit and playing around with the jets while on the dyno.
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Re: KZ 750 with pods and V&H jet question

18 May 2010 16:58
#368820
sounds like a good plan to me thats what i would do my self they have the proper needle sizes all ready figured out for you it will definitly save you a bunch of time and energy.
1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE

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Re: KZ 750 with pods and V&H jet question

18 May 2010 18:07
#368847
I like 70 and 140

Not ported
1980 kz750E1, Delkevic exhaust

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Re: KZ 750 with pods and V&H jet question

18 May 2010 19:14
#368878
The Dynojet Stage 1 & 3 kit (#2102) comes with 116, 122, 130 and 136 jets. I can buy other sizes if any of these jets don't work.
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Re: KZ 750 with pods and V&H jet question

18 May 2010 19:25 - 18 May 2010 19:32
#368884
dyno jet jets are not the same size as keihin or mikuni so you cant go by that just set the carbs up according to the instructions and you should be good to go. for instance a 122 dj is the same as a 130 keihin and a 115 mikuni a 136 dj is the same as a 148 keihin and a 127.5 mikuni so as you can see there is quite a bit of difference.
1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE
Last edit: 18 May 2010 19:32 by timebomb33.

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Re: KZ 750 with pods and V&H jet question

19 May 2010 03:38
#368937
I wasn't aware of the different sizes from different jet makers. Maybe I should just stick with Keihin jets.
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Re: KZ 750 with pods and V&H jet question

19 May 2010 07:47
#369002
just get the dyno jet kit you will be the happiest with it. install it according to your combo and it will work well.
1973 z1 2-1974z1-a,2-1975z1-b dragbikes1015cc+1393cc, 1977kz1000,1978kz1000,1981kz1000j, 1997 zx-11, 2000 z12r,1428turbo nitrous pro-mod and a shit load of parts thats all for now leader sask.,CANADA
I THINK MY POWERBAND BROKE

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