1986 Suzuki LT-230S carb problem

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I got a 1986 suzuki 230lts it has been sputtering and spiting when you add a a little throttle so i took apart the crab to look for crap, i found not a speck of dirt. BUT i found that the pilot screw was messing a few parts, the washer and the o-ring. would that cause it to sputter when a little throttle is applied, it almost feels like the breaks are dragging when you give it a little throttle. thanks for any imput!

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I would replace the missing parts and make sure all of the passages and jets are clear. I would also drain out any old gas and start with fresh fuel if you haven't already. I would also check for air leaks, make sure your air filter is clean, and make sure you have good spark. Get a repair manual, you will most likely need it.

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