Main jet hole in mm

  • kevski
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Main jet hole in mm

16 Apr 2023 07:30
#883220
Does any one know what size the hole in a 105 main jet is in mm please?

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  • Warren3200gt
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Re: Main jet hole in mm

16 Apr 2023 08:33 - 16 Apr 2023 08:33
#883227
Never seen it expressed as a bore dimension in mm's Kev only as flow rate. 
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Z1000J2 somewhat modified!
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Last edit: 16 Apr 2023 08:33 by Warren3200gt.

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  • kevski
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Re: Main jet hole in mm

16 Apr 2023 09:29
#883234
Can't measure flow rate, I have a set of 105's of dubious origin and needed to know the bore size of the real jets, probably end up buying from Allen's. 

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  • zed1015
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Re: Main jet hole in mm

16 Apr 2023 11:18
#883238
Mikuni jets are sized in milimeters and fractions of.
So a 105 is 1 .05mm etc .
AIR CORRECTOR JETS FOR VM CARBS AND ETHANOL RESISTANT VITON CHOKE PLUNGER SEAL REPLACMENT FOR ALL CLASSIC AND MODERN MOTORCYCLE CARBURETTORS
www.kzrider.com/23-for-sale/611992-air-c...lide-mikunis?start=0





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  • atownbrg
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Re: Main jet hole in mm

16 Apr 2023 18:10
#883282
Warren3200gt , nice bike! zed1015 Good to know  that Mikuni made some sort of sense on jet size vs. numbering. I don't thing all manufactures did that. This will help me somewhat verify some jets I ordered of dubious origin. Supposedly made in Japan but suspect because the seller says they are sourced from Japan by buying bulk but whose to say his supplier didn't source them from China?
 
1983 Kawasaki GPZ 750

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  • kevski
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Re: Main jet hole in mm

17 Apr 2023 12:20
#883360
Seems the jets of dubious origin are spot 105's,  I made a measuring tool, only  another 4 different sizes to make now.

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