valve clearance keeps increasing, whats going on?!
I've posted this on the ATVConnection forums too, I'd just like to see if I could find anymore help here.
My problem is, i adjust my valve clearance to spec (.15 intake and. 2 for exhaust) and my quad runs good and quiet. Within an hour or two of riding, i can hear my valves clicking and clanking. Get home, and there at about 3-4 times out of spec, rough guess their at about. 5 each or so. What the heck is causing this? And YES my adjusting bolts have been tightened all the way. I even tightened them a few pounds over what the torque rating said they should be. When i go to adjust them they are still tight too.
My only guess is that my rocker arms are wearimg where they touch the cam. When i last had the head off a week ago, they definately looked worn, but i figured that was normal.
Regardless, how could they possibly be wearing THAT much within 1 or 2 hours of riding?! I do not understand.
My bike is a 700xx. Also, i think when they are that loose i am loosing power, its hard to tell though, but i think i am. I finally got the chance to line my 700xx up against a Raptor 700 and KFX 700 yesterday. I got destroyed... I dont want to turn this into a debate as to what quad is faster, but lets just say i know i shouldnt have got beat as bad as i did, consistently. My valves were clickin and clanking like i said, so im wondering if i lost some power from them.
So why are my valves going so far out of spec so fast?! Any help would be appreciated!