[coily96]

To solve my idle issue i seeked some advice from some carby rebuilders and suzuki specialist.
I took photos as i when along, i hope others with idle issues can use this to sort their problems.

This wont clean out the jets or ports running to the soleniod but if you cant hear a click at the solenoid with reds on this could be your problem.
This will cover the idle solenoid, vaccum hoses and idle adjustment, if you have messed around with the two screws like i did thinking one was mixture you will have problems with idle.

You will need carby cleaner with a tube in the nozzle, 3 metres of vaccum hose (3mm ID) and a small peice of 4mm vacuum hose, a 12mm open ender and a screwdriver.
I had a carby kit laying around and used the o ring and washer from the kit, but its not required if you dont have one.

First step is to disconnect the white plug


It helps to remove the pin for the wire that runs elsewhere because when you undo the idle solenoid the wire will twist up and damage itself.


Next locate the solenoid, rocker cover side of the carby. 12mm spanner to undo.


This is what you should have


From here


Remove washer and o ring, using carby cleaner with straw clean the end of the sensor, inside the holes and in the end hole. Dont use compresed air as you could damage in internals. A ball bearing determins how much fuel is running though this sensor.



Replace o ring and washer and add some lube to the o ring and re install, just nip the solenoid up as it tightens up quickly.

Replace the wire that was removed from the plug, just push it back in and it should lock in. join the white plug together and
check opperation by hearing a click at this solenoid while the ignition is turned on.


While you have the carby hat off replace the vacuum hoses, change one at a time.


Next is the two carby adjusting screws, the one visible on the left is the hot idle screw, the one thats under the accelerator arm is the fast idle or cold idle screw.

With a cold engine start the car, note rpm, if too high back off the cold idle screw under the accelerator arm, if too low screw in.
With a hot enigne, choke off engine running, note rpm if too low and almost stalling turn the screw thats visible one the left in, if too high back the screw off.


If you have a inacurate setting now and again it changes you have a problem with the choke settings.

Its also wise to add a filter close to the carby.

[atari4x4]

:goodtech:

[coily96]

My idle problem is still happening.

Ive had the carby rekitted, replaced all vacuum hoses, disconnected chock butterfly, sorced power and earth for the fuel cut solenoid to the battery and nothing seems to have changed.

Symptoms are normal top end power, carby will run fine unless you give it full throttle then is will stall straight away and continue to be lumpy under 2000rpm. To fix the issue i turn the ignition on and off about 10 times and it seems to fix it. It will be fine until you give it heaos of throttle again and the process restarts.

Also it will return to a different idle speed every time being from 500rpm before stalling up to 1500rpm. Choke butterfly has been removed to rule it out.

[coily96]

By switching ignition on and off a few times gets the fuel cut solenoid moving. Im looking to remove it and put a bolt in there next and have the engine over run a little bit.

[Zook_Fan]

Look down the top of the carby as your accelerate without the car running. See if the fuel dribbles into the throat or it is a nice spray. Mine use to have a flat spot because the fuel didn't enter the throat from the accelerator pump as a vapour.

[JrZook]

coily96 wrote:

Its also wise to add a filter close to the carby.

Where have you placed this filter? By the flow arrow it seems like it's in between the tank and fuel pump. If so it would be best to relocate it between the fuel pump and carb. Here it will catch any crap from the pump before it enters the carb.

When was the last time you replaced the fuel pump? Those symptoms you have could be a possible indication of a failing pump!

[coily96]

Post was deleted but i have not changed the pump in the 3 years ive had it.

Today i bought a z14 and 5mm id hose and will move the filter.
Priced up a fuel pump today $91 so i will do that over the next week.

On another note i went for a drive today and it didnt stall once but idle rpm seems to be different everytime it returns to idle.

[harry loane]

im having trouble with myn it blows a lot of smoke when its hot. its not coming out of the crank case breather just the air box and the exhaust anybody know anything about this?