1996 Wave Venture 700 runaway idle.
Hello everyone. I inherited a blown 700 Wave Venture which I rebuilt bottom up. It starts and idles like a dream UNTIL I goose the throttle and then after release of the throttle the engine starts running away. All gaskets are new, throttle cable is not too tight, butterfly valves are slamming shut, all is torqued to proper spec.
I'm not a two stroke expert as this is my first watercooled 2-stroke rebuild, but I'm pretty mechanically inclined. What on earth would cause something like this? If it was a vacuum leak I would expect the engine to runaway upon start-up. Any help is appreciated. Thanks in advance.