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Recent content by elvismith

  1. E

    Carter YH Idle Speed

    Hi - I'm running a 312 Y block with 2 carter YH carbs, recently rebuilt. She starts great and runs well at lower speeds. Fuel air mix seems about right at 1/2 turn out for each carb, and fuel pressure is around 3psi. I have 2 issues. 1) since the rebuild I think the fast idle is way too high. I...
  2. E

    Carter YH adjustments and setup

    Hi Pete - I also have the 312 Y block with dual Carter YH carbs, in my boat. I recently installed a pressure gauge and it's set at 3 right now. Boat starts great and runs well at low to medium speeds. But at high speeds or when starting from a dead stop (like pulling up a skier) it struggles and...
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