Join Date: Mar 2012
Location: Kingman, AZ 86409
Welcome to the site. Really depends on how it was treated, and maintained. I have 7,500 miles on mine, but I pulled it down around 3,000 miles and found no wear of any kind. I now have 7,500 miles on it and the same held true. Sounds like it may have been over heated at some point in time, but it is easy to rebuild. Slack in the timing chain may just be the tensioner failing, or worn guides, valve job is something any small engine repair shop can handle. The head gasket is easy to replace, but word of caution is the head bolts are considered a one time use. I still have not found any supporting documents on the bolts, but have had several used ones break! If you don't have a manual, you can download a free one at K&T lawn equipment. These things are pretty durable with proper care, I use all synthetic oils in mine, change it every 300-600 miles (depending on the amount of dust I've ridden in), and make sure the air filter is always clean.
2009 700EFI XTX, , AC Winch, 2010 Dust Shield EPI Sport Utility Clutch Kit , Street Legal, Cage chopped 2 ", Aluminum Diamond Plate Trim, Relocated Factory Bladders with covers, 5 Pt. Harness installed, Bed Tiedown System, Scat Pro-Car Seats, Secondary Battery installed, Oil Pressure, Oil/CVT Temperature, Volt Meter & Water Temp Gauges installed with Dash Plate, Bighorns, ITP Black 212 Wheels. Tonneau cover. 750 Big Bore Kit, Web Cam, and Rocker Arms.
Either - Dick or RD