My RX-7 has the same problem if it makes you feel any better. If I floor it, it's fine, but if I lightly accelerate, it will die. I tried adjusting the air/fuel mixture screw, making it run lean, and it seems to be working better. Maybe you could try this on your 83 RX-7 and see if it works?

 

If his problem is the air/fuel mixture then it's not that hard to fix.Just make sure you can get it to idle steady at 800 rpm.

 

what is the fuel regulator? i have been looking at the wrong part. ive been looking at something totally different. gunna replace as soon as the cash flow brightens up.....god damnit this sucks...u know?

 

yeah i know, my 83 has no vacuum leaks, and i rebuilt the carb and it still wont run under 2k rpms



mike

 

Hey mike is your air/fuel mixture good?my idle on the old 12a I had was bad till I adjusted it on the carb then it idled at 1000rpm which is close enough for me.

 

yah, its off but theres not enough screw



mike

 

You might need to look at a adjustable FPR and lean out the main line.When I got mine the idle was 2500rpm that was nuts for mazda just giving it a tune up.Damn morons. :rant:

 

cant find a damned fuel pressure regulator on the damned cr. but check this out....ventilation and check valve......and a fuel check and cut valve. seems to be the two closest things i can come up with, i know where they are but not too sure what they do??? any ideas?

 

ok get this. the vent and check valve goes to numerous hoses and pipes and ****, one of which may go to the carb....one line goes from the vent check valve to thefuel tank....now the check and cut valve is located by the gas tank and has two hoses coming from it, if its by the gas tank u would assume it would have something to do w/ the fuel flow, so .....possibilities are arising.

 

well another ******* dead end.......but i dont think the one i got from the junk car is any good. who the **** knows though right? no one knows **** about what the **** is wrong.....where's my gun