Hi, my 1997 arctic cat zl is still bogging low end after cleaning the carbs and changing the coil and the spark plugs. I was told it could be theCDI box, or what else could be the problem? Does anyone know how much these CDI boxes cost? Also, I'm not sure if it's a ZR or a ZL engine in my sled. The body is a ZL with a ZR hood, and I'm pretty sure the engine was changed from the ZL to the ZR and all the clutches were changed too. How would I tell what engine it has in it? It engages at 5500 RPM if that helps. I think it has a clutch kit in it?! How would I find out if it does? Because if it doesn't I'm going to buy one from D&D. And, does anyone know where I can get a can for the exhaust? Do they even exist? Sorry, I'm not a mechanic at all. Thanks for all the help!