1974 KZ400 Mikuni set up

  • kyan44
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1974 KZ400 Mikuni set up

04 May 2017 16:10
#761192
Hey guys, I was wondering what some of you guys use for jetting a KZ400 with Mikuni carbs, pod air filters and reverse cone exhaust.

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  • diggerdanh
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Re: 1974 KZ400 Mikuni set up

05 May 2017 06:00
#761231
I am running the following with my 76 KZ400, stock engine, electronic ignition from later KZ440, mac slip on muffler, Mikuni VM30s. The 230 mains seems high compared to recommended set ups from Dime City, Sudco, etc. and what others have reported - most in the 190-230 range but they work well for this bike.

Main Jet: #230,
pilot jet: VM22/210 #25,
Throttle valve cutaway (slide): 2.5
jet needle: #6F5 on #4, (STOCK Needle, 1 Clip Richer)
Air Screw: 1.75 turns out
needle jet: #159 P-5, (STOCK)
air jet: BS30/97 2.0, (STOCK)
needle valve set: VM34/39 3.3, (STOCK)
float height: 22-24mm (STOCK)

Hope that helps.

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