August 7th, 2012, 03:19 PM | #1 |
ninjette.org member
Name: Fred
Location: Orange County
Join Date: May 2012 Motorcycle(s): Ninja 250r 2012 Posts: 60
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Valve Adjustment
So this is a noob question but why do people get their valves adjusted ?
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August 7th, 2012, 03:28 PM | #2 |
ninjette.org certified postwhore
Name: Morgan
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So that they open & close at the right tolerances, too far open & they could get a bang of the piston, destroying them & probably the whole engine. too tight & they don't allow air (or exhaust) to flow properly, suffocating the engine.
Fazer thou intake valves after a bang of the piston... |
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August 7th, 2012, 03:32 PM | #3 |
ninjette.org member
Name: Fred
Location: Orange County
Join Date: May 2012 Motorcycle(s): Ninja 250r 2012 Posts: 60
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i dont get why people would adjust though? cant i just leave it as stock?
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August 7th, 2012, 03:41 PM | #5 |
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Name: Brian
Location: Marina Del Rey, CA
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Don't worry. Your 2012 ninja won't need an adjustment for a long while...unless you're pushing 8k on the odometer already.
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August 7th, 2012, 03:44 PM | #6 |
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Name: Chris
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Everything does remain stock. The only thing that changes is the shim if the clearance is out of spec.
Over time, as the valve seat wears, the clearance between the valve and the lobe tightens up. If it gets too tight, thermal expansion can cause the valve to remain open slightly and the valve and the seat will be burned. Then it's time for a new head.
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August 7th, 2012, 03:56 PM | #7 | |
ninjette.org member
Name: Fred
Location: Orange County
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Quote:
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August 7th, 2012, 03:57 PM | #8 |
ninjette.org member
Name: Fred
Location: Orange County
Join Date: May 2012 Motorcycle(s): Ninja 250r 2012 Posts: 60
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not even close...15xx
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