Crossflow vs. Looper

[THEFERMANATOR]

Originally Posted by Skools Out

do the carb butterfly's have 2 or 3 screws holding them in? 2 will be 200 Hp *carbs and 3 will be 225 Hp carbs.

My 140(same carbs as a 225) only have 2 screws holding the butterflys in, and all of the 225's I've worked on have only had 2 screws holding the butterflys in. These were all 91 and older motors though. I know the throttle plates are different in between the two. They have different size air cuts in them, and are 2 different sizes. Except for 85. In 85 they kept the same carbs for both 120 and 140. The 120 had 57 main jets with 18 BTDC timing, and the 140 used 59 main jets with 22 BTDC timing. But OMC quickly found that this led to cylinder overheating(hence how I came abouts my 85 140).