I havent been riding my 04 XB much since I got a CR a year ago. I fire it up and let it run until it gets hot on aregular basis while in storage. Ive been riding it this last week and its running pretty bad. It has loss of power. I cant even wheelie. It used to come up easy by whacking the throttle and I have to down shift to pass. Its missing at a constant RPM and this seems to have gotten worse over the week. I dont notice it on acceleration or idle. I had Seafoam in the fuel while stored. I also ran a bottle through it yesterday over the course of a few hundred miles. No change. I cant find the tune pro I downloaded. Is it still free? I'm going to put some plugs in it and see if that helps. Whats the method for testing the coils? I cant remember because I havent done that since I had my 1979 RD400. Help is appreciated. BTW I did check the electrical connections and they all were tight, good ground.