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problem with 85 carb'd

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5.2K views 15 replies 9 participants last post by  cygnus x-1  
#1 ·
so i searched this site, as well as others, and found SIMILIAR problems, but not the same
and no definitive answers

i just bought an 85 carb'd lude (this is my 7th lude now)
i know tons about 3rd gen's, but very little about 2nd gens, and even less about carb'd 2nd gens

heres my problem.
i came to get the car one night, and it started right away, then it stalled and would not start.
i tried for over an hour,but it would not start

so i come back to edmonton from calgary 2 days later, jump in the car when i get to work, and it starts right away, and keeps running.

so on my way home that night, it stalls in the middle of the 3 busiest lanes in edmonton at rush hour. i manage to push her into an adjacent parking lot, and for 10 minutes she does not want to start. then it miracously starts.

it has only stalled once since, and after a little hesitation it started.

now, to add to this, the car WILL NOT rev about 4000 rpm, and it is very hesitant to go from 3000-4000 rpm.

i can smell gas when pull off the airbox, so its getting fuel
its obviously getting spark cause it runs

what would cause this, and why cant i rev over 4000 rpm

anyone?
 
#2 ·
im not sure what it could be but maybe the carbs need to be cleaned out you can get carb cleaner for $3 and just have the car at an idle and spray it in there with your finger around the throttle cable because it will try to die. B-12 works really good you can watch the build up just melt away. i clean my carbs about once a month
 
#3 ·
A weird situation, never heard anything like it.

I'd say the timing might keep it from passying 4K rpms. . .it stalls out of nowhere? ANd sometimes it starts sometimes it doesn't.

I know this might sounds silly, but check the spark plug cables. Make sure theya re in all the way. Make sure the spark plugs themselves are good. I'm sure you've done this. . .but it's all i can think about right now.
 
#4 ·
clogged fuel filter, thats my best bet
 
#6 ·
its getting fuel fine, so i dont think its the fuel filter

im gonna switch the plug wires with some from the 5th gen i have here, and see what that does. they seemed to be on fine and all tho.

as well, im gonna change the plugs tonight

but i dont understand the rev problem, is it maybe flooding because of not enough spark and thus it wont rev any higher?
 
#7 ·
What happens when you try to rev over 4000? Does it want to die or will it just not do it? It does this even in neutral?
I think there could still be a fuel problem; maybe clogged filters or a weak pump. Check the timing as well just to make sure it's not totally off.

C|
 
#10 ·
Sounds like flooding to me...
Not actually sure about honda carbs, but I know with domestic vehicles, if the choke is stuck, they will flood like a bitch and wont run.
Again, I dont actually know if honda carbs have a choke, I know older nissans dont, they have some valve that acts like a choke.
 
#11 ·
Yes the carbs do have a choke. When the motor is warm, take off the air box and those mesh filter things on the inlet of each carb and see if the choke is stuck closed.
If so, i would lube up all of the linkages on the sides of the carbs and work them back an fourth to get them moving again. On second thought, it is a good idea to clean up he carbs with cleaner like mentioned above and then lube everthing up.
Check the timing, and also maybe replace the distributer cap and rotor.
 
#12 ·
im gonna grab some carb cleaner when i get my new plugs and wires tomorrow, hopefully this will clear it up

also, the choke is located under the steering wheel, correct?

in that case, the entire cabel is not connected to the car, and is laying in the back, as far as i can tell, where it was supposed to connect everything seems fine

could it be stuck open?
 
#14 ·
anyone on the choke issue?

and i just sprayed a bottle of carb cleaner thru it
bunch a black sh*t came out the tail pipe, and seems to go a little better