Anyone know of a throttle control lever diagram/manual online anywhere? I acquired a 1978 Mark Twain 18'V Sonic, had to take the side panel off to take up the carpet to install a new floor, and removed the throttle lever, and didn't realize it was geared (sorry I'm new at this) and couldn't get the darn thing back together. Any suggestions? The local guy needs a few weeks to get to it, and i'm missing my first boating season. Thanks in advance.