How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask mackin1 Your Own Question
mackin1, Auto Tech
Category: Nissan
Satisfied Customers: 473
Experience:  Foreign/Domestic Vehicles
Type Your Nissan Question Here...
mackin1 is online now
A new question is answered every 9 seconds

720 pickup: auto trans, A/C..carb, you can smell the rich exaughst

Resolved Question:

i have a 1984 nissan (datsun) 720 pickup, 2.4 liter motor, auto trans, A/C . need to know how to readjust the carb, you can smell the rich exaughst
Submitted: 9 years ago.
Category: Nissan
Expert:  mackin1 replied 9 years ago.

Hi ther and welcome to JA

If its for sure its a carb-at the drivers side pop the cap off the A/F mixture screw- turn A/F mix screw till it seats back it out 2 turns set idle screw curb adjustment at 650rpm-now start closing the mixture screw till you feel its misfiring then back it out qtr turn, then readjust curb idle to 650rpm. Might want to inspect the choke system -choke plate could be binding not opening fully creating the rich mixture.

mackin1 and 2 other Nissan Specialists are ready to help you

Related Nissan Questions