leandre Posted October 23, 2012 Report Share Posted October 23, 2012 Ok so i did a 4k engine swap in my ke70 as the other 4k died and switched the carb and fuel pump as they were in better condition. Well i got the timing done and vacuum lines all hooked up. And when the car is warm sounds like it idles around 1k-1.5k rpm and when choke is on the car shakes like its running rich and dies within a few seconds. I'm leaning towards air fuel screw if anyone could help me locate these screws or have any info on what else it might be let me know. Thanks. Quote Link to comment Share on other sites More sharing options...
altezzaclub Posted October 23, 2012 Report Share Posted October 23, 2012 I think they're on the rear of the carb, passenger's side, although its a few years since I had a stock carb around. Just follow the throttle cable, it will lead to the idle speed screw and the idle mixture screw will be nearby. Make sure the choke isn't holding the idle on when the motor is warm, or maybe the choke cable is set up too tight. Does it do eveything else as it should? Quote Link to comment Share on other sites More sharing options...
B.L.Z.BUB Posted October 23, 2012 Report Share Posted October 23, 2012 Quote Link to comment Share on other sites More sharing options...
love ke70 Posted October 23, 2012 Report Share Posted October 23, 2012 vac leak would be where my money is at... Quote Link to comment Share on other sites More sharing options...
leandre Posted October 23, 2012 Author Report Share Posted October 23, 2012 Altezza - car druves as it should. Just if I'm in gear and let the rpm go down low to like 800 or so and pull the clutch in just goes high again. Sounds ugly lol. I can pretty much take off without throttle. Ill double check that the choke isnt tight and get back to you. Quote Link to comment Share on other sites More sharing options...
leandre Posted October 23, 2012 Author Report Share Posted October 23, 2012 B.L.Z. - thanks for the diagram. Quote Link to comment Share on other sites More sharing options...
altezzaclub Posted October 23, 2012 Report Share Posted October 23, 2012 vac leak would be where my money is at... Yep- if the screws don't fix it, that is most likely. Quote Link to comment Share on other sites More sharing options...
leandre Posted October 23, 2012 Author Report Share Posted October 23, 2012 Alright so i fixed the idle problem. The throttle was open a little because of that bolt with a spring under where the fuel goes into the carb, was on tight. But still the problem when i turn on the choke full it shakes and dies. But if i leave it halfway it seems to function as if it were fully open. Quote Link to comment Share on other sites More sharing options...
leandre Posted October 23, 2012 Author Report Share Posted October 23, 2012 I think they're on the rear of the carb, passenger's side, although its a few years since I had a stock carb around. Just follow the throttle cable, it will lead to the idle speed screw and the idle mixture screw will be nearby. Make sure the choke isn't holding the idle on when the motor is warm, or maybe the choke cable is set up too tight. Does it do eveything else as it should? Any tips on what i should do about the choke stalling on me when on full and functioning properly when its half way Quote Link to comment Share on other sites More sharing options...
altezzaclub Posted October 23, 2012 Report Share Posted October 23, 2012 Take another look at the choke mechanism. It does two things, holding up the idle speed and also richening the mixture with the flap over the carb throat. I can't remember how they interact and how adjustable they are, but my SUs just hold the throttle open until the chokje is halfway out, then pulling the choke further actually richens it. That interaction is quite adjustable. Find out if it is closing the choke flap immediately you pull the choke knob, and if that can be altered. I've got my old carb out on permanent loan so I can't go and have a look... Stick up a couple of photos of the choke setup if you get stuck. Quote Link to comment Share on other sites More sharing options...
love ke70 Posted October 27, 2012 Report Share Posted October 27, 2012 if it works at half, use it at half. one day when its really cold, you might want the full option ;) Quote Link to comment Share on other sites More sharing options...
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