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33 mm Mikuni Jetting
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33 mm Mikuni Jetting 07 Jan 2006 14:06 #16547

  • trickedST
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I have a 1075 kit that I am putting in my bike 10.25/1, with 410 cams, a ported and polished head, and a Vance and Hines 4 into 1 header. Does anyone have any suggestions on what jets to use in my Mikuni 33mm carbs? Thanks

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33 mm Mikuni Jetting 07 Jan 2006 15:08 #16554

  • roy-b-boy-b
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I have basiclly the same set up. I disremember the jetting. I will be in the shop tomorrow and will drop a bowl and look. I think Wired George and i were talking about the jetting of these carbs. Maybe he will chime in. Roy
1979 LTD Street Fighter.1977 KZ1000

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33 mm Mikuni Jetting 07 Jan 2006 16:59 #16574

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Thanks alot....I appreciate any help on can get on this considering after I purchased the carbs, I've had more than one person tell me I shouldn't have went with 33s, I disagree of course.

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33 mm Mikuni Jetting 07 Jan 2006 18:13 #16592

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Here's the Mikuni VM33 base jetting table.

Ron


Post edited by: ron g, at: 2006/01/07 21:16
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33 mm Mikuni Jetting 07 Jan 2006 19:29 #16608

  • roy-b-boy-b
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Thanks for the chart. I haven't run mine yet. I think i just set it up from what Frank told me . He runs Powerhouse out on Long Island and he builds awsome bikes. That's where i got my boots also.
A well know carb guru told me the 33's are the only way to go. So simple and never a bog. Roy
1979 LTD Street Fighter.1977 KZ1000

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33 mm Mikuni Jetting 08 Jan 2006 15:08 #16761

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Roy - We talked about BS34 (constant velocity) carbs and not VM33 smoothbores. The larger smoothbores have a bad reputation regarding low end tunability; can't say for sure if it is deserved or not. The BS34s are easy to tune and provide great all around performance on stock OR modified bikes.
wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!

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33 mm Mikuni Jetting 08 Jan 2006 16:47 #16773

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Well Duh! I getting senile George.:blush: Next subject please. Roy
1979 LTD Street Fighter.1977 KZ1000

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33 mm Mikuni Jetting 08 Jan 2006 18:31 #16799

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Someone told me to bump the main jet up to the next size over stock and leave the pilot and air jet the stock size....Does that sound like it would work with my set up?

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33 mm Mikuni Jetting 09 Jan 2006 06:55 #16866

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I think I used 132.5 or 135's in my 33's and I had close to the same setup you are running,you may have to faten the needle some as they were a little lean down low,I used em for drag racing so it didnt matter much how it ran low as long as 5500-6k and above was good.
I have 3 sets B)

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33 mm Mikuni Jetting 09 Jan 2006 10:42 #16897

  • RonKZ650
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I see these are for sale locally if anyone wants a set.
321,000 miles on KZ's that I can remember. Not going to see any more.

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33 mm Mikuni Jetting 10 Jan 2006 17:13 #17148

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Ron, are those 34mm flatslides?? How much?
1975 z1 900
1979 kz650b

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33 mm Mikuni Jetting 12 Jan 2006 14:13 #17528

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Size and price, please.

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