1988 suzuki samurai, runs fine cold but when it warms up starts missing (undrivable). Something is cutting off the fuel to the 2 rear cylenders. you can look in the carb and see one jet just about shuts off while the other seems good.

Seems to be a known issue. Try some of the fixes, but you may need a Pro quality Scan Tool Computer.

https://www.google.com/search?q=1988+Suzuki+Samurai+cranks+but+won%27t+start

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With throttle held wide open... A good running engine should produce 140-160lb compression

Checked timing? Ignition wires all good? Misfire under load may indicate bad wires.

there 2 issues, here.
first all dizzy get hot , 180F is the engine temp and the dizzy
will get near that temp. its unavoidable. that fact.
or worse parked and hot soaked,

the ignitor is bad.
a rebuilt dizzy from CARDONE , is about 1/2 the price of the internal bad parts. (VR sensor and ignitor)

need a link to the part?
you get to find out early or late
see ignition choice.
http://www.cardone.com/find-parts/vehicle-parts-listing?make=Suzuki%20Trucks&model=Samurai&year=1988

allstores in usa can get this part., all.
if not , avoid them. like zoned. avoid.

i think rockauto.com sell em. but that takes time.

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

show me where location is

Try changing the fuel filter.If it is running ok at lower speeds around 50kmh/30mph I would say fuel supply is the problem.
Hope this helps.

Hi, You need to plug this into a code reader and see what codes are stored the most common reason for the engine cutting out is internal fuel pump failure will also cause poor starting

I've never seen a samurai without a PCV valve hooked up. You sure its just missing it cuase that is what releases the pressure build up in the engine. If not working/installed then you're gonna get piston blow by, oil burning, and a rough running engine.