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Spark plug color 05 Aug 2022 14:36 #871737

  • gordone
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Have you installed air corrected jets?
by doing that you can use orginal jetting and needle height, only adjust for det 4 to 1 Exhaust.
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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Spark plug color 05 Aug 2022 15:06 #871740

  • Maxbou92
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I cannot find anywhere the air corrected jet (62). I have 4 pod, 4-1 stock exhaust with open slip on, small porting, 0.06 milled head, 0.5 oversize. So my set up for now is ; 125 to 130 main jet, pilot at 2 1/4 turns, Im waiting 40 pilot jet?! With 2 of 0.5mm shims needle. Planning to renove one shim, it makes some Burp at low rpm in each gear!! But at 3500-6000 it sounds and ride very good!! I dont push it more for my new engine !!!

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Spark plug color 07 Aug 2022 04:44 #871806

  • zed1015
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Have you installed air corrected jets?
by doing that you can use orginal jetting and needle height, only adjust for det 4 to 1 Exhaust.
With pods and air corrector jets you still need to increase the main jet size regardless of exhaust fitted.
All other settings remain stock .

 
AIR CORRECTOR JETS FOR VM CARBS AND ETHANOL RESISTANT VITON CHOKE PLUNGER SEAL REPLACMENT FOR ALL CLASSIC AND MODERN MOTORCYCLE CARBURETTORS
kzrider.com/forum/23-for-sale/611992-air-corrector-jets-





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Spark plug color 07 Aug 2022 04:50 #871807

  • Maxbou92
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All right, so now I have 130 installed instead 125 and 1mm needles shim. What are you thinking about 

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Spark plug color 07 Aug 2022 07:37 #871812

  • TexasKZ
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1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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Spark plug color 07 Aug 2022 07:49 #871813

  • Maxbou92
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Thank you, but I dont think these jet works for the Keihin Cv34. I haven’t any jet that looks like these jet?! 

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