Question about 1988 Suzuki Samurai

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Running problems it starts then after a couple of secons it stops,dont fire straight back up if i leave for a couple of mins it starts again then stops ,i have changed coil,checked fuel pump and there is loads of petrol getting there so could you please advice me on what problem may be its a suzuki sj1300 samari

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  • rawsamurai Apr 11, 2009

    I have the same problem sometimes but I also have another problem with the carb. It has a deadspot i it. WHen you stab the throttle after idling it will die for a few sec. then rev up. Why? though the entire range of all the gears it will hesitate. I have went through the vaccum system. The only thing that puzzles me is that the EGR valve is cancelled and the EGR modulator is missing and there are a few lines capped off. I did not know this was possible. Is thre EGR vital to the operation or not?





    Richard

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There are two little switches located on the front of the carb. each have two wires coming from them. use an ohm meter between each set of wires. when the switch is closed it shouldnot have more than 5 ohms or resistance. when its open you should have no reading at all. also those carbs are a p.i.t.a. to rebuild and not a job for just anyone. but they are always needing work. alot of us samuri addicts have done away with the stock carb and went with a weber setup. weber carbs are simpler in desighn and dont need all those vacuume lines. it also gits rid of the exses wiring.

the egr can be blocked off but the valve is cheap enough that it is just as easy to change it out. if it has been blocked off for very long you may need to pull the intake and clean out all the carbon before you install a new one.

if you block off the top of the carb with a rag while reving the engine up it can help clean out the fuel circuits. you want it to almost try to die and give it some throttle. this causes high vacuume in the carb and sucks extra fuel through the jets and valves cleaning them up. its called the redneck tune up. sometimes it works well and other times not at all.

if you spray some wd40 on the vacuume lines and around the intake seal surfaces it may try to die. if so, you found a vacuume leak. vacuume leaks are common.

any more questions check out www.zuwharrie.com

Posted on Apr 23, 2009

  • ojohanson Mar 19, 2011

    Usually if it q uits like turning off the key, the mixture solenoid in the carb is "hung up" from a little piece of dirt. It needs to vibrate to feed the fuel mixture. What has worked well for me is...get two jumper wires to activate it by un plugging the green plug for the wire coming out of the top of the carb and carefully trace the two wires at the plug. Carefully using your jumper wires from battery, touch the two "prongs" a few times, listening for the little clicking sound in the carb. Plug it back in and it usually runs.(Keep the wires in the glove box for future use)


    As for the "stumble" go online to a Samurai supplier and get the fix-it part that fits to the opening of the carb. It is a known problem.

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Vacuum leak. Its common for it to run for awhile then shut off or shut off when stepping on the accelerator.

Just go ahead and replace each vacuum line one at a time.

Posted on Mar 17, 2009

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Sounds like carburetor float is stuck or sinking causing engine to flood with fuel , rebuild time .

Posted on Feb 19, 2009

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