Im sure its not as good as stock, and its most likely made in china, but for 25 bucks, and a 1 year warranty, it may be worth a shot. I havent heard any good or bad from these, but I know many of the oem coils are over 20 years old, and still going strong. If you cant find a cheap oem coil, give one of these a shot, and give a review of what you think. Good luck!
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