1986 Mazda RX7 not starting

Tiny
MRBREEZ
  • MEMBER
  • 1986 MAZDA RX7
I stopped drivin my 1986 rx7 gs for about a year so I go out 2 start it but it wont turn over so I changed the spark plugs and put some gas in it and it will only run if I start it and someone else sprays carb. Fluid in it but when you stop spraying the fluid in it itll run for a second and quit any suggestions will be greatly appreciated
Do you
have the same problem?
Yes
No
Monday, January 9th, 2006 AT 1:15 PM

11 Replies

Tiny
RMJANNEY
  • MEMBER
I have been doing the exact same thing. My car sat for a couple of years, and now I can get it to run with a little starter fluid for about 3 seconds. Please reply.
Was this
answer
helpful?
Yes
No
Tuesday, January 10th, 2006 AT 10:23 AM
Tiny
COSMO
  • MEMBER
Is it injected or carborated?
Was this
answer
helpful?
Yes
No
Tuesday, January 10th, 2006 AT 11:28 AM
Tiny
RMJANNEY
  • MEMBER
1986 rx7 fuel injected 5speed stick. I have checked fuel presure and hold presure are ok. I can dump raw fuel down the intake and it will run for a few seconds untile it exausts that and dies
Was this
answer
helpful?
Yes
No
Tuesday, January 10th, 2006 AT 8:39 PM
Tiny
STEVENAJONES
  • MEMBER
I have a simlar problem with mine, it has a new fuel pump, and filter. I have the haines manual, it says to adjust the idle screw, and fuel mixture screws, but I can find the screws where it says they should be, can't anyone help me find them?

Steven A Jones
Was this
answer
helpful?
Yes
No
Sunday, February 5th, 2006 AT 10:10 PM
Tiny
COSMO
  • MEMBER
God jesus don't touch the mixture screws! THESE SCREWS NEVER need to be moved! Do you have the MAF sensor connected? Is the main air tube on the engine. If it not on or the sensor is faulty. This is what it might do.
Was this
answer
helpful?
Yes
No
Monday, February 6th, 2006 AT 9:10 PM
Tiny
STEVENAJONES
  • MEMBER
Thanks Cosmo. The repair manual sugested adjusting those, thats why I was thinking of doing it. I dont think it says anythink about the MAF sencor. What is the MAF sencor?

Steven A Jones
Was this
answer
helpful?
Yes
No
Monday, February 6th, 2006 AT 9:23 PM
Tiny
COSMO
  • MEMBER
If you have to ask. Take it to someone who knows. Messing around with a rotary can cost you alot of money in a hurry
Was this
answer
helpful?
Yes
No
Monday, February 6th, 2006 AT 9:31 PM
Tiny
STEVENAJONES
  • MEMBER
I have done some work on it and it does run better than when I got it, but it still has problems. I have the haynes workshop manual, it is what said to adjust the screws. It doesnt have anything that mentions tha MAF sencor. I havent taken it to a mazda tech yet because I cant afford one. If you can imform me what the maf sencor is, I may beable to fin out how to take care of it, or find out how in the manual.

Steven A Jones.
Was this
answer
helpful?
Yes
No
Monday, February 6th, 2006 AT 9:51 PM
Tiny
STEVENAJONES
  • MEMBER
The problem I am having is that as I am driving it, or letting it warm up, it runs fine for a bit, but then it dies, as if it is out of gas. I know its not the spark plugs, or fuel filter, or pump, since they are all new, and running well. I have tried touble shooting it as best I can, and I am now seeking help from someone that knows more than just whats in some stupid workshop manual. But I cant afford to take it to a shop. I appreciate all of your input.

Steven A Jones
Was this
answer
helpful?
Yes
No
Monday, February 6th, 2006 AT 9:57 PM
Tiny
PT
  • MEMBER
Pour 1 oz. Of mystery marvel oil into top of carb. Apex seals have dried out
Was this
answer
helpful?
Yes
No
Tuesday, February 7th, 2006 AT 6:29 PM
Tiny
JACOBBALL
  • MEMBER
From eric just got done with this problem to my engine. Ran fine until I open the throtle then it would die. The floats are made out of plastic and will deteroate over time also the little valve tends to stick so replace it. Bap or foreigen auto parts store sells rebuild kits but make sure you mark where the orfices go they are two colors silver for secondaries and brass for primary clean all ports and orfices. Clean around the butterfly valves at the bottem lube them and make sure open easly and don't stick. I also found stuff in the metal fuel lines on top of the carb those lines have screans in them to so check to see if there not pluged. Good luck
Was this
answer
helpful?
Yes
No
Tuesday, November 27th, 2007 AT 5:04 PM

Please login or register to post a reply.

Recommended Guides