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Everything Dirt Bike
Make / Model Specific
Kawasaki
Meet Elise
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<blockquote data-quote="ossagp" data-source="post: 200745" data-attributes="member: 1650"><p>I wont call that too loose especially when you are considering that a 450 isnt spending so much time spinning. if that was a 600 4cyl then it might bounce too much. one of the big concern on the kind of wear that a cam over bucket situation leaves is that most of the wear is seat and surface and that makes you lose clearance. with clearance loss you are losing spring preload as well as the fact that your springs lose some of their strength. if you are already pushing it near or past suggested redlines and in most cases that is past the torque peak then you start getting a risk of valve float/"bounce" etc. on the rocker arm engines such you get cam and rocker wear that goes faster then seat and surface wear, so things go loose usually first, then the exhausts tend to lose clearance as they burn. the game changed with liquid cooling and twin cams.</p></blockquote><p></p>
[QUOTE="ossagp, post: 200745, member: 1650"] I wont call that too loose especially when you are considering that a 450 isnt spending so much time spinning. if that was a 600 4cyl then it might bounce too much. one of the big concern on the kind of wear that a cam over bucket situation leaves is that most of the wear is seat and surface and that makes you lose clearance. with clearance loss you are losing spring preload as well as the fact that your springs lose some of their strength. if you are already pushing it near or past suggested redlines and in most cases that is past the torque peak then you start getting a risk of valve float/"bounce" etc. on the rocker arm engines such you get cam and rocker wear that goes faster then seat and surface wear, so things go loose usually first, then the exhausts tend to lose clearance as they burn. the game changed with liquid cooling and twin cams. [/QUOTE]
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