03-06-2017, 06:17 PM
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#1 |
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Join Date: May 2016
Location: Central New York
Posts: 32
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Mikuni Jet Suggestions
New Exhaust Installed, new Carb on fed ex truck, and a Uni pod air filter ready for the carb.
Elevation here in Utica, NY is 600' what would be a good starting point for Mikuni Carb Jets? |
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03-06-2017, 08:35 PM
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#3 |
Join Date: Feb 2017
Location: NY
Posts: 170
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as chuck suggested the 115 main jet should be ok with the aftermarket exhaust just make sure you are getting enough air into the carb, i am about an hour north of where you are i cut my air box open installed a K&N filter cut out the cat converter cut the spark arrester i have the mikuni carb with a 110 main jet 22.5 pilot jet the air mix screw is one turn out and the needle clip is in the middle slot. i can start the bike from a cold start on half choke and once it warms up it will run perfectly through all gears at all ranges of the motor.
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03-06-2017, 09:51 PM
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#4 | |
Join Date: Oct 2015
Location: connecticut
Posts: 978
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Quote:
I have a 110/20 combo. I'm a little lean down low so I made up for it with needle and screw. I will fix that when it warms up with a 22.5 or a 25. (I forget what the stock pilot is, I think 20?? the main in mine was 98) |
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03-07-2017, 09:20 AM
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#5 | |
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Join Date: Sep 2015
Posts: 436
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Quote:
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03-08-2017, 10:12 AM
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#6 |
Join Date: Nov 2016
Posts: 72
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Stock pilot is 20 on the Mikuni clones. Where are you getting yours? I wanted to put a 30 in but I can't find ones that fit.
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2002 BMW R1100S, 1999 Kaw Concours, 1991 Kaw Eliminator 250, 1969 Honda Trail 90 Too many damn mopeds...    
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03-08-2017, 11:06 AM
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#7 | |
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Join Date: Feb 2017
Location: NY
Posts: 170
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Quote:
try the CR/YZ pilots thats what fit in mine, i have used mikuni carbs for many years in different things so i had a few jets on hand, but these ones that we are dealing with now are clones so they may not set up the same as a legit Mikuni would be. i settled with a 22.5 for the pilot, i would have to believe that you could find them on E-Bay or Amazon fairly cheep. |
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03-08-2017, 11:58 PM
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#9 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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I've purchased dozens of main jets and slow jets for 30mm Mikuni carbs (so-called clones) on eBay over the years. I also have a pin vise and a 61-80 drill bit set for custom-drilling of slow jets. That complements my regular numbered drill bit set that only goes as small as 60.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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03-09-2017, 09:09 AM
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#10 | |
Join Date: Dec 2016
Location: Western PA
Posts: 363
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Quote:
The good news is that Mikuni OEM jets do fit the clones, you can get them from jets'r'us; 'OEM equivalent' works fine. Mains: http://jetsrus.com/a_jets_by_carbure...arge_round.htm Pilots: http://jetsrus.com/a_jets_by_carbure...-486_pilot.htm I'm running 27.5/110 at the moment on a stock bike, though I think a 25 would be absolutely fine. @2lz is to thank for digging these out. |
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