i just put Dyna coils and wires on the Z1 900 and it ran great, sounded like she had better compression. Rode it like 20 mile and she went to the red with every shift, and there was no loss of power. I rode her to work came out 4 hours later( it was a chill 30 degree's). Turned the gas on choked her and she fire right up, and rode great home.
74 Z1a 900 (Apart and making it better than ever)
77 Kz 650b (Threw a rod, going to sandwich in a 900 or 1000 motor)
76 Kz 400d
05 ninja zx-636
81 Kz 750 Ltd
Darien, Illinois
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