VM28SS Main Jets

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26 Jul 2009 20:09 #309506 by JakeB
VM28SS Main Jets was created by JakeB
What type of main jets go into the Mikuni VM28SS carbs on the 78 Z1R? I'm trying to rejet it after putting the airbox back on and don't know what type of main jets to get.

I pulled one out and it looks almost like the large round mikuni jets, but the measurements are different and it has INC stamped on it instead of the typical mikuni stamp.

The "head" measures 7mm, the threads are 5mm, and it is 8mm long overall.

The letters INC are stamped in the diamond at the bottom.


1978 Z1-R
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  • Kawickrice
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26 Jul 2009 21:38 #309514 by Kawickrice
Replied by Kawickrice on topic VM28SS Main Jets
The large round Mikuni jets would be my guess for the VM series carbs

73 Kawasaki Z1
07 HD CVO Ultra Classic
82 Suzuki GS 1100
74 Yamaha RD 350 (My two stroke toy)
77 Kawasaki KZ 650B-1 (My putt around bike)
80 Indian Moped (My American Iron)
1
Long Gone
75 Suzuki GT550
74 GT 380
79 RD 400 Daytona Special
72 Honda CL 175
74 Honda QA 50
Tampa FL

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