Jackzx10 Posted July 25, 2021 Posted July 25, 2021 Hi all. I have been over what I think are all the available posts and links but can’t find what I need So… it’s the much talked of Mikuni bst 36mm carbs on a GSX1100. ( 83 in this case) I have a nice set from a 92 GSX 750F ( katana ) What I would like to know are the baseline jet sizes and settings . It has a ‘Mac’ 4-2 exhaust ( anyone want to trade for a 4-1 ?) Stock cams Right now it has a set of RS flat sides on which will be going on another more worthy build and to be honest doesn’t really run as I’d like with them on Anyone care to give me some ballpark sizes etc. Big thanks for your time. John Quote
Blubber Posted July 25, 2021 Posted July 25, 2021 If you read all the jetting related topic, i am pretty sure the general consensus would be to have it set up on a rolling road. A proper opererator will get it running properly pretty quick. Ease of mind and such. A jet size around 135 for a aircooled 1100 with cv36mm seems a common size but there is a difference in flowrate between Keihin, Mikuni and the others. That was for Bandit 1200 - 36mm carbs on a aircooled 1100 . Local conditions, such as elevation and fuelquality, general state of carbs incl needle shape, engine tune plus filtration ( Pods / OEM / modified airbox ) and exhaust will give you a variable of +/- 50% on that jet size. Please document what you ended up with , with a AFR graph to help others with a similar tune 2 Quote
Jackzx10 Posted July 25, 2021 Author Posted July 25, 2021 Will ultimately put it on the local dyno. But first want it to fire up and pull some revs. Could be a while but I will announce all results Thanks Quote
HUM Posted July 25, 2021 Posted July 25, 2021 Hi my config gsx 1100e Yoshi stage 1 cams , stock airbox K+N inside , V&H 4/1 with racing baffle gas 98 octane carbs from efe, 36mm , needle in middle , 120 jettings , screws 1+4 , two 1/2 2+3 , three all other jettings efe stock runs quiet well cheers Uli Quote
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