1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

car idles only on choke

Thread Tools
 
Search this Thread
 
Old Oct 21, 2015 | 05:14 PM
  #1  
rotarynewb400's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2015
Posts: 6
Likes: 0
From: sedro woolley
car idles only on choke

Hi everyone I'm not too familiar with rotaries just now learning. I have an 83 rx7 GSL with a 12a Nicki four-barrel I believe. it idles well in choke but when it kicks out the car will die every time. After that you can start it without joke but having to keep on the throttle, the car was not running when I purchased it it had been sitting for 7 years things I did are pumping all the old fuel out of the tank with an electric fuel pump and refueling with 92, replacing coils spark plugs and wires,
Tested fuel pump, an replaced cap an rotor. Car then fired over in choke with no problem other than small oil leak almost unnoticeable by mazda emblem on driver side engine case.
The car moves around fine an has good response while driving but only wen choke engaged otherwise it doesn't want to keap idle... I have the carb off an am waiting for my rebuild kit to come in, an that's were I'm at... any suggestions???
Reply
Old Oct 21, 2015 | 05:40 PM
  #2  
Jeff20B's Avatar
Lapping = Fapping
Tenured Member 15 Years
iTrader: (13)
 
Joined: Aug 2001
Posts: 15,725
Likes: 91
From: Near Seattle
Congrats!

There is a throttle stop screw you can turn clockwise which will mimic holding your foot on the gas pedal. This is the best you can do right now until you have a chance to really get in there and deal with everything.

The screw is located down low under the throttle cable bracket next to the accel pump housing. I don't have any pictures handy but see if you can find it.
Reply
Old Oct 21, 2015 | 05:52 PM
  #3  
rotarynewb400's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2015
Posts: 6
Likes: 0
From: sedro woolley





Is this what you're referring to?
Reply
Old Oct 21, 2015 | 08:36 PM
  #4  
Jeff20B's Avatar
Lapping = Fapping
Tenured Member 15 Years
iTrader: (13)
 
Joined: Aug 2001
Posts: 15,725
Likes: 91
From: Near Seattle
Yes!
Reply
Old Oct 21, 2015 | 08:37 PM
  #5  
BMS2004's Avatar
Frankencar
Tenured Member 15 Years
 
Joined: Jan 2004
Posts: 645
Likes: 0
From: Michigan
check for vacuum leaks. some of those rubber hoses might be leaking. Also there is one on the rear of the intake manifold that could be a massive leak.
Reply
Old Oct 21, 2015 | 08:45 PM
  #6  
rotarynewb400's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2015
Posts: 6
Likes: 0
From: sedro woolley
Thank you all! I'm still waiting on my carb kit, but when I get everything back together I'll check for leaks an play around with that throttle screw a bit an se what happens. Also what seals do I need for the engine. I have a oil leak on the side?
I'll post a pic
Reply
Old Oct 21, 2015 | 08:51 PM
  #7  
rotarynewb400's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2015
Posts: 6
Likes: 0
From: sedro woolley

Originally Posted by rotarynewb400
Thank you all! I'm still waiting on my carb kit, but when I get everything back together I'll check for leaks an play around with that throttle screw a bit an se what happens. Also what seals do I need for the engine. I have a oil leak on the side?
I'll post a pic


Still have to degreese engine
Reply
Old Oct 21, 2015 | 09:00 PM
  #8  
Jeff20B's Avatar
Lapping = Fapping
Tenured Member 15 Years
iTrader: (13)
 
Joined: Aug 2001
Posts: 15,725
Likes: 91
From: Near Seattle
You will ruin the carb if you change to the new needles and seats in the rebuild kit. They were all machined improperly and they all lead to instant flooding. Keep the originals and don't adjust the floats.
Reply
Old Oct 21, 2015 | 09:07 PM
  #9  
rotarynewb400's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2015
Posts: 6
Likes: 0
From: sedro woolley
Noted!! That would suck... btw this is a similar kit to the one I was thinking of getting for just resealling an cleaning the motor up. Anything I'm missing?
Reply
Old Oct 21, 2015 | 09:28 PM
  #10  
Qingdao's Avatar
HeyHeyHey..Its the Goose
Tenured Member: 10 Years
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Apr 2012
Posts: 3,024
Likes: 204
From: Charleston
Originally Posted by rotarynewb400
Noted!! That would suck... btw this is a similar kit to the one I was thinking of getting for just resealling an cleaning the motor up. Anything I'm missing?

You might come to find after opening the engine up you'll need more parts.

Nothing like new apex seals to make an engine run tip top. $400 seems like a lot, but trust me, its WORTH it.
Reply
Old Oct 21, 2015 | 09:35 PM
  #11  
rotarynewb400's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2015
Posts: 6
Likes: 0
From: sedro woolley
Originally Posted by Qingdao
You might come to find after opening the engine up you'll need more parts.

Nothing like new apex seals to make an engine run tip top. $400 seems like a lot, but trust me, its WORTH it.
I also found a master rebuild kit for 1200$ but wanted to assess what's there befor dropping $$ like that haha, it apperently ran strong befor it sat, it's been a 1 owner car since 83 befor me an been sitting since 08 or 09 I belive.
Reply
Old Oct 21, 2015 | 09:47 PM
  #12  
Qingdao's Avatar
HeyHeyHey..Its the Goose
Tenured Member: 10 Years
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Apr 2012
Posts: 3,024
Likes: 204
From: Charleston
At minimum I'd throw the felpro gasket set and a set of apex seals at any engine I tear down. I've had poor results from reusing apex seals.

Tear it down; then you'll know for sure. Not to scare you but if you take it down you might find you need bearings or rotors or even housings. Best just to cross your fingers and take those 17 bolts out.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
wretchedegg
General Rotary Tech Support
1
Nov 19, 2025 03:07 AM
The1Sun
1st Generation Specific (1979-1985)
7
Sep 18, 2015 07:13 PM
The1Sun
New Member RX-7 Technical
5
Sep 15, 2015 04:45 PM
The1Sun
1st Generation Specific (1979-1985)
0
Sep 7, 2015 10:21 PM




All times are GMT -5. The time now is 12:31 AM.