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carb tuning

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21 replies to this topic

#21 datzenmike



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  • Cars:'74 710 sedan, '76 710. prevoius... '78 620, '71 521, '68 510 new '76 B-210

Posted 18 April 2017 - 03:59 PM



Take a good look at yours. Does the valve cover side look like this one?


The accelerator pump is under that black rubber thing. When you open the throttle that horizontal arm goes up on the left and down on the right pushing the piston down. If it's moving then the problem is inside.

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#22 Dank_Mochi



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  • Location:Southern California
  • Cars:1971 datsun 521

Posted 19 April 2017 - 11:05 AM

Gotcha, all of what you just stated was true for me. Arm was working and being pushed down, I'm taking the carb back to where i got it rebuilt and will have those guys figure it out. I'll post some pics of my truck soon when it's running again. Thanks for all of the help