Question about Suzuki Aerio
You don't mention the year, but I's guess its 8-10 years old.
Jerking is commonly caused by a spark or fuel problem, or both.
Try cleaning the plug wires with WD40. This may or may not help. If the wires are very old, cracked or damaged, replace them.
Inspect the distributor if it has one. If so, check the internal coil and power transistor. If there are multiple coils packs, one may be flakey.
If the engine is missing on one cylinder, you need to identify which one, then do a compression check. For an older engine, it may be blowing a head gasket or a valve may be leaking. In both cases the head has to be removed and reconditioned.
Posted on Jan 04, 2011
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Posted on Jan 02, 2017
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