Samurai accelerates on its own, can't idle, maybe too much fuel from carb?

Syam, Carbureted Suzuki Samurai is 4 to 4.5 psi.
1.3L 8V and 1.0L 6V TBI
Key on: 22.7 - 29.9psi
Idling: 12.8 - 20.0psi.

Samurai and Sidekick TBI
Key on: 34.1 - 39.8psi
Idling: 24.2 - 29.9psi

Sidekick MPI
Key on: 35.6 - 42.7psi
Idling: 29.8 - 37.0psi

Swift DOHC MPI
Key on: 35.5-38.4psi
Idling: 25.6-29.9psi
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TeamSwift View topic fuel pressure looking for 38 45 PSI
http://blog.lowrangeoffroad.com/wp-content/uploads/instructions/instructions/86-89-Suzuki-Samurai-1.3L-Fuel-Pump-Pressure-Test.pdf
Fuel pump testing

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 ...

custom carb .
who knows what you have, even diff, engine.
remove hose, measure it. if not up to measuring, take it to any shop
and they will tell you, what I.D it is. (most hoses are marked)
the jerking can be many things.
seems to me its the DASH pot effect.
on custom carbs there is no dash pot, so when you drop the hammer (throttle ) you get 100% closes throttle and next snapping
the orig, carb had a dash pot, now missing.
one trick is to run high idle speeds, or back off throttle slower driving.
or add a dashpot.
it simple delays throttle snap back.
sure the timing changes rpm that is why.
when tuning any carb, you set timing first , then tune carb to that.
stock timing and stock advance if motor is still stock,
you dizzy has stock advancing weights and springs, i test those first.
cheers.

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

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.

ait fuel not being adjusted correctly is usual cause.

I do not know myself, but if you go to zuwharrie.com, and register as a user (it's free) you can get all the Samurai info you can ever want.

Possibly a stuck float in the carburetor causing the bowl to overfill leaking into canister and flooding engine? Try cleaning or rebuilding carb.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jerry_612d8419f8984578

hi have a look here
Suzuki Workshop Manuals

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