The best method is sanding by hand, starting with about 400 grit, and working your way up to 2000 grit, you need every grit in between, and dont skip any. Sand one direction, like left to right, and on the next grit sand the other, like up and down. You know when you have done it enough when the lines from the previous grit dissapear. Use only WET sand paper, and keep it wet, and wash it off often. I use a bucket with water, and just dip the sand paper in there. For best results, change the water often, like after every grit. After you have gotten all the way up to 2000, it will already be very shiney, but if you hit it with a buffer and soft cloth buffing wheel with buffing compound, it will really bring out the shine. You then use a polish like mothers to protect the shine, and must be very careful how you wash it and keep it polished often. Start with a smaller, more flat piece to see how it will go. The tripples will deffinatly take a lot more work than say a clutch cover, because its bigger obviously, and it has a lot of crappy casting defects. Good luck, and thats it in a nutshell. Its really a lot of hard work, and you must be dedicated.
THE 80's RAGE! Currently owns:
81, 85 Yamaha Tri Moto 125
83 Yamaha Tri Moto 200 x2
82,83 Yamaha Tri Moto 175 project
85 Yamaha Tri Z 250
84 Kawasaki Tecate 250
84 Honda ATC 70
85 Honda ATC 350X
84 Honda ATC 250R
(2) 84 Honda ATC 200x
82, 83 Honda ATC 185s
81 ATC 200
Lots of other parts and bikes
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