CaterpillarMT
New Member
I have a 2003 model 356 special that I obtained with a scored piston and cylinder. I installed a Bailey's 372 Big Bore kit and resealed the carburetor. The saw will not idle after the fast idle is kicked off. I can turn the T screw in until about 3400 rpm and it runs but will not idle any slower. The L jet adjustment won't remedy this situation. I was suspecting the idle diffuser jet was plugged. Any other ideas about what to look for or how to repair this complaint? It also seems to surge for a second after you rev and let go of the throttle.
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