Thread: Keihin CR Carbs
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Old October 21st, 2020, 12:57 AM   #1
punishum808
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Name: Tracy
Location: Hawaii
Join Date: Oct 2020

Motorcycle(s): Suzuki JPN Katana 750 , 1994 Suzuki Pro Stock Motorcycle , 2001 Ninja 250

Posts: 233
Keihin CR Carbs

Tried searching only found one thread here that was more asking if they should get it.
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I got the factory CVs running great with vel stacks and a 3rd stage jet kit. Super snappy and had it a tad on the fat side.
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The factory mains on the CRs are 118 and these carbs are 31s compared to the factory CVs that are 28s and factory mains are 98. I ran 114 on the CVs with the jet kit and stacks. It said that the 118s on the CRs are supposed to be for a stock motor, which I have and a pipe, which I have also, a full exhaust with a small can which almost a straight pipe. It was running extremely fat with the 118s and would not even fire.
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Has anyone else had similar problems with the factory CR jetting? Thinking of going to 114, 112 or even 110s and have the needle set at #3 to start. Any input from guys who have had this same scenario would be greatly appreciated. Mahalo
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Attached Images
File Type: jpg Ninja 250 CV Carbs3.jpg (86.1 KB, 3 views)
File Type: jpg CRS 1.jpg (78.9 KB, 1 views)

Last futzed with by punishum808; October 21st, 2020 at 01:10 PM.
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