http://cgi.ebay.com/Warrior-CDI-87-...tor-yfm-350_W0QQitemZ170173914397QQihZ007QQca tegoryZ88433QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Not aftermarket, but thats all I can find for an 89.
I think u can get one on ebay for 100$ for like a 97. I think the plug style is the only difference. So you may be able to get it, and wire it up to the stock one.
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