Answers: How something like $10?
http://cgi.ebay.com/ebaymotors/Raptor-35...
This is a CD copy of the inventive, but usually they're fine.
You really need the instruction book - with photos and step-by-step instructions it's the just way to budge!
As far as how often - When the quad is unusual you should check clearance after about 50-100 hours - if it's still inwardly spec, then you can travel 6 months (lots of hard riding) to a year (less riding).
Usually the exhaust stopcock is the problem child on the Yam 350 - if it gets out of tolerance, the go before can break off the tap and really cause some interfere with - so it's smart to check!
http://www.motocom.com/motorcycles/
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