yeah man thats over priced big time, not trying to be a dick but like the others said people toss the stock exhaust in the trash or give it away, few times i seen full sets on craigslist for around $30. the toomey silencers arent worth much alone, the one could just be tossed in the trash
did you install the idle screws and adjust them? to install the screws you need to drill and tap the carbs. to adjust just keep turning the idle screw in untill it idles smoothly, do the same for other cab and check sync
i use anything laying around. bar oil, 2 stroke oil, veggy oil (once. i was desperate lol), engine oil, wd-40, pb blaster.... to name a few. lube is lube, BUT i will not say the chain will last as long.
heres mine i did with a wood saw for the ruff cut and a heated knife for finish work. took me 10 mins to cut and finish, 3 days to finally get the guts to cut them.
i dont get any more mud up on me unless im moving rather fast and have the steering against the lock