1998 Johnson Evinrude "EC" 125C, 130, 200, 225, 250 90 deg LV Service Manual, P/N 520212, Page 108Get this manual
3Flush all carburetor holes and passages with small syringe filled with isopropyl alcoholBlow passages and carburetor dry with compressed air of not more than 25 PSI (172 kPa)When drying passages, direct the flow of shop air opposite to the direction of fuel flowInspect float needle and seat for wear or distortion Replace both pieces if damage is noted
5Inspect throttle body and throttle shaft:
Check body and shaft for excessive wear or side play Check throttle plates for looseness or incorrect seatingMaximum throttle plate clearance is 0.002 in(0,05 mm) Check throttle plate retaining screws for tightness