Unusual carb question

[rmxtwofitty]

I need a new carb for my 1991 Rmx. I read in Eric book that it runs best with a 39mm Kahein pwk carb. Now for the question. I found a pwk off a 98 cr250 for the right price, but it has the electrical connectors on it that the older bikes do not have. For reference the Item number: 4577102695 on ****. I don't understand what these connectors actually do, or how they regulate the carb. Would it affect the carburation to leave this disconnected? Thanks for any input I just don't get it. :bang:

 

[steve.emma]

from what ive heard that connector is for the powerjet solenoid that pumps extra fuel into the carb under half-full throttle. i would think that you can leave it disconnected and jet round it accordingly, though someone else may correct me here...?

 

[flattie]

read eric gorr's tuning tips for 98 cr250 he tells you which needle to run in that carb with the fuel silenoid un hooked!