Please correct me if im wrong

hey guys hope to find ya well. got a question for the cv gurus . i want to back down the main a bit on the 44 . the stock 220 main is working well but in reality it does not need to be that rich 13.0 flat most guys would love to have it there at wide open . not needed really . so my question is as follows harley does not service the main part # any more for jets cv products only sells 200 thats to lean tried it ! need a 210 . so my question is would that be .2.10mm if so what size # drill would that be i cant find a chart for that size . conversion . i want to drill the 200 by hand to a 210 if im correct on the mm size that is ? let me know if im correct .Thanks guys!

Maybe Kenfuzed could help you there, BP.

maybe! it would be nice to find out if im correct

I found this chart cross reference looks like a 210 would be .0820"






Keihin, Dynojet, Mikuni Jet Size Cross Reference

All Hole Diameters Are in Inches

Hole Dia”---Keihin # -- DynoJet # -- Mikuni #
0.0350---- 92.5--------- 92----------- 86.3
0.0360---- 95----------- 94----------- 88.1
0.0370---- 97.5--------- 96----------- 90
0.0380---- 100---------- 98----------- 91.9
0.0390---- 102.5------- 100---------- 93.8
0.0400---- 105--------- 102---------- 95.6
0.0410---- 107.5------- 104---------- 97.5
0.0420---- 110--------- 106---------- 99.4
0.0430---- 112.5------- 108--------- 101.3
0.0440---- 115--------- 110--------- 103.1
0.0450---- 117.5------- 112--------- 105
0.0460---- 120--------- 114--------- 106.9
0.0470---- 122.5------- 116--------- 108.8
0.0480---- 125--------- 118--------- 110.6
0.0490---- 127.5------- 120--------- 112.5
0.0500---- 130--------- 122--------- 114.4
0.0510---- 132.5------- 124--------- 116.3
0.0520---- 135--------- 126--------- 118.1
0.0530---- 137.5------- 128--------- 120
0.0540---- 140--------- 130--------- 121.9
0.0550---- 142.5------- 132--------- 123.8
0.0560---- 145--------- 134--------- 125.6
0.0570---- 147.5------- 136--------- 127.5
0.0580---- 150--------- 138--------- 129.4
0.0590---- 152.5------- 140--------- 131.3
0.0600---- 155--------- 142--------- 133.1
0.0610---- 157.5------- 144--------- 135
0.0620---- 160--------- 146--------- 136.9
0.0630---- 162.5------- 148--------- 138.8
0.0640---- 165--------- 150--------- 140.6
0.0650---- 167.5------- 152--------- 142.5
0.0660---- 170--------- 154--------- 144.4
0.0670---- 172.5------- 156--------- 146.3
0.0680---- 175--------- 158--------- 148.1
0.0690---- 177.5------- 160--------- 150
0.0700---- 180--------- 162--------- 151.9
0.0710---- 182.5------- 164--------- 153.8
0.0720---- 185--------- 166--------- 155.6
0.0730---- 187.5------- 168--------- 1575
0.0740---- 190--------- 170--------- 159.4
0.0750---- 192.5------- 172--------- 161.3
0.0760---- 195--------- 174--------- 163.1
0.0770---- 197.5------- 176--------- 165
0.0780---- 200--------- 178--------- 166.9
0.0790---- 202.5------- 180--------- 168.8
0.0800---- 205--------- 182--------- 170.6
0.0810---- 207.5------- 184--------- 172.5
0.0820---- 210--------- 186--------- 174.4
0.0830---- 212.5------- 188--------- 176.3
0.0840---- 215--------- 190--------- 178.1
0.0850---- 217.5------- 192--------- 180
0.0860---- 220--------- 194--------- 181.9
0.0870---- 222.5------- 196--------- 183.7
0.0880---- 225--------- 198--------- 185.6
0.0890---- 227.5------- 200--------- 187.5

thats what i mean bro used my fingers and toes and a pen and came up with 2.10mm .0827 so im un sure if thats correct ?

LOL...I hate it when I gotta use my toes... 7/10,000 difference in your calculations and that chart...
I found a link to jetsrus, they have a 210 main....

KEIHIN ROUND MAIN JETS N424-27

man thats alot of decimals for us bikers lol. never mind spelling seven tenthousands. lol. feel like im back in school

LOL sure is...who would you trust more,your own math, or numbers from a chart
Don't ya hate it when it comes close,but not right on....

:rant::dont know ran out of toes .:roflmao:

the fuel cal is so close that i thought i would try it first and see how it works out with the needle thats in there now if the main puts my mid range to lean i wont have a choice but to richen the needle circuit . or bump the main back up and drop the needle for mid range jetting to be correct . the motor will run much better in the cruise air fuel at 14.3-14.5 . but i dont want it to drop to 13.0 so fast id like to see it drop to 13.5 13.8 and flatin out at 13.0 12.8 wide open . trying to get it as perfect as i can . im ocd like that. thought i could leave it be but i cant!!!!.

i guess that my math was good then !!!!! im so proud of myself ken! 2.1 divided 25.4= 0.0827

Smarter than your average bear,eh....You may now leave detention...:roflmao:

ya booboo now we can ride to get pickanic baskets!!! :roflmao:

So they come in the smaller sizes as well? Example, 196.197,198 etc?

i heard ya

LOL...Ya think BP suffers from that HRK...

You should be able to dial in any AFR you want with that selection...


I have one general question from my observations over the last couple of years....Why do so many top notch wrenches ride carbed bikes when EFI is supposed to be sooo much better??