slimpanama
New member
i have a early 90's 18 hp Nissan. it runs fine once its spinning fast. it idles decently for the most part, but does stall sometimes. on occasion while idling it makes a clank noise which shakes the whole motor...which sometimes kills it, not always. when applying the throttle it boggs then instantly surges into power. trying to hold a low rpm, fast idle, in a low wake situation the rpm surges up and down as if one cylinder is turning on and off. i was thinking that the stator may not be producing enough at low rpms, but figured someone on this forum knows how to test.