I run a uni filter and slip on big gun exhaust. My machine has been running rough intermittently. I started to diagnose the issue. I found that my fuel controller was not turning on when the machine was running. It did just fine when it was installed. I got on the phone with Dobeck and they were great. They were extremely nice and helpful. They called me back with a tech to help me trouble shoot and even stayed late so I could rip the fuel controller out and try some other tests. I touched the positive electrode to the battery terminal and the controller it would only work if I scratched it for a while against the battery terminal. Ridinagain was also very helpful as he responded to my PM very quickly and said he would get it taken care of. Both Dobeck and Ridinagain are extremely helpful and I'd buy from them again.