SUSKIE SAMURAI CARB WONT IDLE AND CUTS OUT STOP RUNNING

this is caused by mixture getting past the idle and being sucked into the combustion chambers and being ignited by the hot spots and combustion pressures
Very common on early english cars and some american cars
The japanese carbies had a solenoid valve that fitted into the idle circuit so that when the ignition was turned off , the solenoid closed off that idle circuit and prevented the problem
you may have to "play " with the idle mixture screws to get a better mix so that the mixture is too rich to run on or change the weber to a model that has the solenoid shut off

put in a new cam timing belt ever 60,000 miles
forget that?
what year, sammi.
the belt.
a tuneup
and if not fixed, clean and service the carb.

If the problem is not a vac leak, it could be the idle circuit inside the carb. You may have to replace or rebuild the carb to fix it.

87 has no ECU. so must be an engine swap to a 89 or newer tracker
or last sammi that did have EFI.
you said EFI and Carb in same paragraph and that is a contradiction.
post to my bbs for more help.
http://www.fixkick.com/bbs/

post a link to a photo of your engine, many sammy cars have a newer engine and EFI added. no matter we can fix it, but you need to learn whats under the hood first, photos rule in this word.

dont know if this is the same but i had a sj with same problem when it wwas cold it run fine but when it was at temp it cut out and revvin up and down ended up havin a new carb which was costly and hard to find now ...

check the carb main jets i just had that problem rebuilt the carb and fixed it. auto zone has rebuild kit for around 30 dollars easy to rebuild if you take a lot of pictures!! spray all the jets out with carb cleaner around 4 dollars

Sounds like you have a air flow problem not real familiar with the suzuki but it may have a air flow adjustment or either a set screw for idle control to maby idle it up just a little.

best guess is carb. try some sea-foam in the fuel tank and never let a carb. set with ethanol fuel alwise add some stay-bil to the tank if your going to have to let it set.

Fix your car right away by clicking the link I attached 1987 Suzuki Samurai

Even if you do it yourself you need to adjust it.I would get another mechanic to look at it also.Have you tried cleaners? 1 type you add to the gas the other you remove the air bonet and spray into the top of carb while running (have someone press on the gas lightly so you don't stall.Have you tried to increase the idle via the adjusting screw? has the auto choke been tested..adjusted? Good Luck.