Have you looked at the oil pump? I can't imangine much weight savings from removing that little thing, plus you have to install a cover where the pump used to be and good luck making sure there are no leaks. Once you have removed the pump now you have to experiment with the correct mixture and you will never get as precise an adjustment consistantly as you did with the pump. Ton's of other areas to shave weight don't think the oil pumps worth it