Lawman Posted March 29, 2007 Share Posted March 29, 2007 Okay, checked throttles bodies like this using a Twinmax: 1. Turn on power 2. Connect rubber hoses to each throttle body 3. Adjust sensitivity to MAX and adjust zero knob until needle is straight on zero. 4. Turn sensitivity knob fully to MIN. 5. Start engine 6. Rev and hold engine at several different ranges from 1500 to 4000 r.p.m. The needle barely even moved. At worst was about 1/4 off zero to the left of zero..Do I need to make any adjustment? If so, how? I assume it's done using the two nuts on the right side throttle body very near where the hose connects to the throttle body? Also, I did this without the muffler on as I am waiting on a new back tire to be installed..Would this have any effect? Link to comment
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