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air/fuel

  1. D

    2000 Explorer 4.0 SOHC spark plug gap

    I have a 2000 Explorer XT with Yamaha 4.0L SOHC. Since purchase, I have modified the exhaust-- MaxFlow Muffler with 2 1/2" pipe from the muffler aft. I also added K&N filter for max inflow. Performance in terms of mpg and acceleration were vastly improved. Earlier in its mileage, I would get...
  2. C

    B2300 idol air/fuel problems!! Please give a look & help if u can!!!!

    Hey guys! I also am having wierd problems with my 96 MAZDA B2300. over the last few months i have been experiencing idol problems. It likes to either run at 400 or 2200 rpm. when i take my feet off the pedals it goes up to 2200 and when i bring it down in gear it will either go back up or sit...
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