Restoring a old 74 gt550 zuk I found thru a friend. it's in great shape. just rebuilt the carbs.(I could have stained a chair from the varnish). now I need to make sure the oil pump isn't clogged. I want to change the gear box fluid but don't what to use. and how full is full? Theres no sight window or anything. I think the bike should run good with the 3 cyl. 2 stroke power.
Any help is appreciated.:punk