My 02 XR650R has what appears to be a loose decomp lever at the engine. The lever at the engine is sloppy with no real return spring action. The external return spring is definitely loose. Is there a spring inside the rocker cover? Is there a possibility of the decomp mechanism staying open and allowing compression out during running? How does the little bugger work in there? The bike still seems to firm up at TDC and the release still allows you to get past it though? Do I have to remove the lever from the engine to replace the external spring?