Very new to samurais. Recently traded a couple Datsun pickups I had for a nice stock sammy. Runs, but very rough. Runs really really rich, and stumbles while idling. I was told it didnt run, but needed a carb from the guy I bought it from, but I was able to start it and drive it home, though it was a little hard to keep it running at first. After about 10 minutes of driving it, it actually ran good, and ran good the next day before acting up again. Same problem as before.

Also note it was sitting for a year before previous owner bought it, and sat for a year after until I picked it up. Put fresh gas in it, but not much other work since getting it.

Any suggestions on the cheap? I was looking at a stock datsun carb I have, and noticed that the bolt pattern is the same, I wonder if it'd work. Otherwise I'm looking for a way to work with the carb I have. Let me know :D.

Weber, propane, not cheap, nevermind.

check the choke on the carb. Mine was busted, so im running a manual choke now. much better :)

Choke was stuck on my brother's too, lol. It was the first thing I checked, but it's fine. I can get a stock carb locally, but the guy wont part it, I need to buy the whole 1.3, oh well, might be worth having an extra one around the way mine is looking :P .

Weber's arent too badly priced, and unfortunately I let two go with my datsuns, maybe somewhere down the road I'll swap one on.

i picked one up about a year ago and it was sitting for 7-8 years. i got it started and it ran pretty good. then it started running like shit. i took the stock carb off and took it apart (big PITA) cleaned up what i could with carb cleaner, and reassembled (the linkage is horrible to hook back up) it's ran great since then.

if it's been sitting that long, You should really clean the crap out of it and replace the fuel filter. Wouldn't hurt to flush the tank too. Check all your vacuum lines and make sure you don't have any leaks. There is so much going on with all of the vacuum lines on these things! Pull your plugs and clean them or replace if needed. Most people on here have modified their rides to the point where the stock carb is worthless. If your samurai is all stock though, the original carb is great.

why is this a normal problem with the stock hatachi carb? where is the source of the problem on the carb. what is the trick to to get the carb working right, without removing it. mine is doing the common Starts and runs fine at idle, Let it warm up and Drive it about 2 blocks and it starts bucking and jumping like it's starving for gas. if i come to a stop, it starts to stall. then i Have to pump the pedal and get going good. i get it back home and there it will just idle rough. let it sit for a hour and it starts and idle fine. on the rd 5 gear is hopeless it loses power. i do have a spare carb that is in nice shape. should i swap it out it? sure looks like a pain in the butt to do so. mine is a 87 samurai. thanks for your input on this problem.

Deve, check your fuel pump first. Oull the fuel line off where it feeds the carb and see how well it is pumping fuel. (wait until it starts to act up).

After you have checjked fuel flow (fuel pump and filter) then check for vacuum leaks.

These carbs are 20 years old, and complicated. Once they start to act up and one problem leads to another there is only a few roads to take.

A Rebuild the stock carb, and replace all your vacuum lines, check all your sensors. After a GOOD rebuild, it should be trouble free for years.

Swap to an alternative induction system. (weber probane fuel injection).

Swap in a 1.6 and keep the injection system with the engine.

IMHO the stock carbs are great. They run at all angles and feed the 1.3 well enough. Once they start to go south, you either need to take the time to rebuild them correctly, or spend the next year chasing down each issue as it pops up.

FWIW, people usually swap on a webere, pane, or FI because they think it's the quick solution. Nine times out of ten, they end up spending more time and money setting up the new carb or FI system then they ever would have with a rebuild.

HTH
(me I'm swapping to stock fuel injection)

Deve, check your fuel pump first. Oull the fuel line off where it feeds the carb and see how well it is pumping fuel. (wait until it starts to act up).

After you have checjked fuel flow (fuel pump and filter) then check for vacuum leaks.

These carbs are 20 years old, and complicated. Once they start to act up and one problem leads to another there is only a few roads to take.

A Rebuild the stock carb, and replace all your vacuum lines, check all your sensors. After a GOOD rebuild, it should be trouble free for years.

Swap to an alternative induction system. (weber probane fuel injection).

Swap in a 1.6 and keep the injection system with the engine.

IMHO the stock carbs are great. They run at all angles and feed the 1.3 well enough. Once they start to go south, you either need to take the time to rebuild them correctly, or spend the next year chasing down each issue as it pops up.

FWIW, people usually swap on a webere, pane, or FI because they think it's the quick solution. Nine times out of ten, they end up spending more time and money setting up the new carb or FI system then they ever would have with a rebuild.

HTH
(me I'm swapping to stock fuel injection)

well your right to a point. the rig i have came with a new carb on it. yes i said new. we even have the box and paper work that came with it. i would bet this thing was not cheep! it runs well but not on all angels. in fact i spend more time turning the starter over than anything else. its a carb dude! they suck on step climbs. i wish these things had much less crap that is tied to the ecm. give me an old style carb over these electronic things and i could get it to run on most angles. but yet it is still a carb! it has a float and they are subject to sloshing.


any how dude go get a rebuild kit, they suck to get of the motor, and have more censers than it should, but the insides are easy to deal with. clean the snot out of it rebuild it and it should be ok. if you don't feel comfy doing the rebuild find a good shop in your area and take it in to them. what you get back will be a good unit. add a fuel pressure gauge this will help with figuring out if you have a delivery issue. i want thru three stock pumps in one year. so i said fwak it and want electric with a pressure regulator and gauge, has run like a champ for a year now. i will still have to say its a carb and has a hard time with the step climbs. but i'm climbing shit that is well over 25*.

good luck

sorry to chime in late but can these stock carbs me modified to work witout the sensors on it? Mine will run if I up the idle to about 1500 rpm


thanks