1988 SUZ Quadrunner 230

[SpringValleyCycles]

I have a quadrunner 230 (1988) that I just bored and put a new piston/rings in. Bike was running fine except for smoking before rebuild. Cleaned carb, new battery and it fired right up. But, it idles great, but won't take throttle. It acts like it is hitting the rev limiter when giving it throttle. (like they do when the voltage regulator is bad) Replaced the VR, still same problem. Shot fuel straight through carb to make sure that wasn't problem, no difference. Well, to get to the end of it, I have replaced the voltage regulator, the stator, the CDI, the fuse holders (they were kinda dry rotted), the ignition coil, basically everything electric related except the wiring harness itself. I have had 3 other mechanics in here to look at it, and still have not come up with a solution. You can't get the OEM wire harness anymore, but am looking at building a new one, thinking that there is a bad wires (or multiple wires) that is causing the ignition to be fooled because of resistance. Has anyone had an issue like this, or any suggestions? It has driven me nuts, especially since I have had other units just like this one, where either the CDI or usually the voltage regulator has been the solution when they had similar symptoms.

Thanks, Anthony