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1986 Mazda Truck B2000. Carb problem and running rough

Tiny
BUDLACK
  • MEMBER
  • 1986 MAZDA TRUCK
  • 4 CYL
  • 2WD
  • MANUAL
  • 300,000 MILES
I just bought this truck and it starts great when cold, but after warm, the secondary carb bowl fills with gas and floods bad.I have to start it with the pedal to the floor. Then has idle problems. Also. Jst replaced needle and seat and checked the float, seems ok.
thoguhts anyone. Thanks a bunch
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Wednesday, May 12th, 2010 AT 7:48 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
I have to start it with the pedal to the floor. Doing this helps to clear out the flood with more incoming air. The carb has an internal leak-possibly the float has a pin leak drowning the float bowl.
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Wednesday, May 12th, 2010 AT 7:58 PM
Tiny
BUDLACK
  • MEMBER
  • 2 POSTS
I don't think the float is leaky, there was no liquid in it when I took it apart. Any other thoughts
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Wednesday, May 12th, 2010 AT 8:16 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Your problem is coming from the carb or you have an excessive fuel pressure
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Wednesday, May 12th, 2010 AT 11:26 PM

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