Welcome Guest - Sign Up today
Welcome Guest - Sign Up today

Announcement

Collapse
No announcement yet.

90 hp 3cly pop then pressure through fuel line

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • rsgonza
    started a topic 90 hp 3cly pop then pressure through fuel line

    90 hp 3cly pop then pressure through fuel line

    So I've had a rough idle for a few months, rebuild the carbs,fuel pump, trigger, cdm replaced, flushed tank, replaced cylinder number 3 reed valve comp 125psi through 3 cly. My question is what would cause a pop possible backfire?when this happens there is no fuel coming out of the carbs but instead coming through the fuel lines. I can feel the pressure build by holding the fuel line and at times will spit fuel through 3 way tee near the middle carb.? Also perhaps I rebuild the pump wrong? I will double check the fuel pump. Thanks.

  • racerone
    replied
    Carburetors could be lean.------Open low speed mixture needles 1/4 turn and see what happens.-------Leans misfire is a much mis-understood concept on 2 stroke engines.

    Leave a comment:


  • may the force be with you
    replied
    Your timing could be off / Ignition not working properly, you should check your valve-reeds & fuel-pump now
    Also check for good spark on all plugs & compression readings on all cylinders
    Last edited by may the force be with you; April 2nd, 2020, 10:36 AM. Reason: added info

    Leave a comment:

Working...
X