I'm a newbie to the sportjets and had a couple questions. I have the red stator and trigger to install but need the black 16amp adapter. Do you know the part number for it and a place it can be purchased? I have a problem with mine and maybe someone here can answer it. It runs fine up to about 10mph but then it spits and sputters and can't go faster. Seems to idle fine. Any ideas? I heard voltage regulators could also be a problem. Thanks in advance.