I'll try and make this as short as possible. I just replaced a couple of gears, drum, shift fork, and put in a Dynojet kit with the 190's in my '97 ZX-9R and now I'm having problems. Other than the jet kit, it has a Yoshimira can and K&N filter. It took an expected 15 sec. or so to start the first time and it ran for a short ride of about 4 minutes or so and then bogged down. By bogged I mean it just lost power like it was running out of gas. Then when I put the clutch in, it died and wouldn't restart. Now when I hit the start button, it makes a god awful metal-on-metal CLANK! and stops rotatation completely. Funny thing is that this only happens when the plugs are in. When they're out, it turnes over no problem. I thought about hydro compression, but I don't know how it got there in the first place and why did it die to begin with? Any ideas? Thanks!