Author Topic: 77 cb750 choppy at 3/4 throttle.  (Read 556 times)

0 Members and 1 Guest are viewing this topic.

Offline greddm

  • Enthusiast
  • **
  • Posts: 144
    • CB750 Cafe Build
77 cb750 choppy at 3/4 throttle.
« on: May 02, 2015, 11:32:22 AM »
Bike runs fantastic at low rpms and wide open, but seems a little starved at 3/4 throttle (around 4k rpms). It's most noticeable in 3rd gear around town. Which adjustment would remedy this (mixture screw, needle clip)?

Main jets are 120, and I believe I have the needle clip set on the second notch up but I can't remember for sure.

From the charts I've seen it looks like I may need to raise the needle?


1977 CB750