I have just checked my valve clearance. The exhaust valve was perfect but the intake valve was at .15mm when the specs are .05mm-.10mm . The bike has about 700miles on it and I did not notice any noise change in the motor since I got the bike. When I was a kid always seemed like the valve clearance would tighten up not get loose. Could it have come from the factory this way and is it at a point where I should re-shim it(I realize I am over spec but does the husky usually loosen up or tighten up)? From what I have read here sounds like a real gem to shim these valves. Any help would be great and really appreciated!! Thanks
I wouldn't worry too much about it. You could tighten it up. I have the TC 449 engine in my G450X which does have slightly different cams but the same valve train arrangement and the valve clearance specs for the Intakes are .020mm to .025mm or (.008 to.010) "inch. The exhaust spec for the TC is .028mm to .035mm or (.011" to .014") inch. All things considered the exhaust valve sitting on the seat a tad bit longer will help keep the exhaust valve cooler as it extracts more heat from the valve into the head. Titanium valves are not cheap and "Del West" would be happy to sell you or Husqvarna some more. If the bike is currently having trouble starting or has begun to have trouble starting then you feel it can be traced back to valve clearance by all means. You can decide to do what you want to do.
