KZ750 CV34 Slow Pïlot Jets

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KZ750 CV34 Slow Pïlot Jets

29 May 2016 17:25
#729139
If you are considering buying these #35 aftermarket jets from JetRUs, let me tell you the emulsion holes are smaller than those on OEM Keihins CV34 jets.

You must enlarge the three of them to Ø0.73mm. I have done it in two steps. First using a 0.55mm and then a 0.73mm drill bit by hand.

Good luck. B)
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires

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  • SWest
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Re: KZ750 CV34 Slow Pïlot Jets

29 May 2016 17:28
#729142
That will make them run leaner.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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Re: KZ750 CV34 Slow Pïlot Jets

29 May 2016 17:32
#729143
That will make them run as original Keihins jets.
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires

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Re: KZ750 CV34 Slow Pïlot Jets

29 May 2016 17:59
#729149
It will make them run leaner. Two things control the fuel flow rate on those jets, the size of the fuel orifice and the size and number of emulsion holes. If that was a #35 jet, it isn't now. I believe mikuni jets are sized by flow rate, not hole size. If this is an aftermarket jet, it will not be dimensionally identical to a stock mikuni but will flow correctly.
Bikes: 82 kz750 CSR, 03 Suzuki gsf1200s (stage 2), 73 CB 750 bored to 849, big cam, ports head, big valves, lots of other goodies....

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Re: KZ750 CV34 Slow Pïlot Jets

29 May 2016 18:19
#729156
I've used aftermarket jets. A 125 main won't run for SHT where a Mik 125 will. Drilled differently
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
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Re: KZ750 CV34 Slow Pïlot Jets

31 May 2016 06:52
#729323
Skullcrusher wrote: It will make them run leaner. Two things control the fuel flow rate on those jets, the size of the fuel orifice and the size and number of emulsion holes. If that was a #35 jet, it isn't now. I believe mikuni jets are sized by flow rate, not hole size. If this is an aftermarket jet, it will not be dimensionally identical to a stock mikuni but will flow correctly.

They are aftermarket Keihins, not original Keihins or Mikunis as you said.
On Keihins the number is the size in hundreds of mm. #35 is 0.35mm.

I will never buy aftermarket jets again. 0.35mm gauge did not fit the aftermarket #35 jets, but they did fit the original #35 Keihin jets.
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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Re: KZ750 CV34 Slow Pïlot Jets

31 May 2016 07:04
#729324

If you did, you can get these on eBay.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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