Just baught a 99 xr 70 and noticed the sparkplug hole threads are stripped. can this be hili coiled or should I get another head . I found this kit on ebay, I know its cheapo but this bike is only for my wife to get around the pits in. Will it hold up? Also It came with the wrong carb . does anyone know what size carb comes stock? Thanks everyonehttp://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=400180865765&ssPageName=STRK:MEWAX:IT !