Thanks for your help. I just purchased a tuning needle from the site referenced. It seems as though that my problem is with the engine tuning because there is enough thread lock on most of the set screws, etc. to keep anyone from *ever* breaking it. In fact, there was enough on the steering assembly and bottom plate to strip the screws when trying to remove them. Have either of you replaced the allen head screws with a flat or even phillips head? It seems as though they would be much more durable.

Also, i hate to sound stupid, but what, exactly, is the LSN? I know that the HSN is the main tuning screw that comes out the top of the carb, but what the hell is the LSN?