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  #1  
Old 11-20-2009, 03:59 AM
Woody_393's Avatar
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Default Master List: Dirt Bike Valve Clearance Spec

I have been wanting to compile a list of valve clearance specs for a long time, but I never remember to do it, until I'm no where near a computer.

The idea is to get as many years/bikes valve specifications as possible and post them so we have a central place to look for them. It will also really help those without manuals.

If you can post both the Inches and Millimeters that would be fantastic since one measurement might be easier for some to use than the other.

The ones I know... and please, if you can confirm other years are the same (if I couldn't confirm, I did not include the year), I will adjust the years so they match, or simply add it to your post.

2005 - 2007 Suzuki RMZ450:

Intake: 0.15 - 0.20 mm (0.005 - 0.007 inches)
Exhaust: 0.18 - 0.23 mm (0.006 - 0.009 inches)

2004 -2006 Suzuki RMZ250:

Intake 0.10 ∼ 0.15 mm (0.0039 ∼ 0.0059 inches)
Exhaust 0.17 ∼ 0.22 mm (0.0067 ∼ 0.0087 inches)

2002 - 2003 Honda CRF450R:

Intake: 0.18 0.03 mm (0.0063 0.0012 inches)
Exhaust: 0.28 0.03 mm (0.011 0.0012 inches)

2005 Honda CRF250R:

Intake: 0.12 0.03 mm (0.005 0.001 inches)
Exhaust: 0.28 0.03 mm (0.011 0.001 inches)

2005 Honda CRF450X:

Intake: 0.16 0.03 mm (0.006 0.001 inches)
Exhaust: 0.28 0.03 mm (0.011 0.001 inches)

Honda XR400R (All Years):

Intake: 0.10 0.02 mm (0.004 0.0008 inches)
Exhaust: 0.12 0.02 mm (0.005 0.0008 inches)

Honda XR650R (All Years):

Intake: 0.15 0.02 mm (0.006 0.001 inches)
Exhaust: 0.20 0.02 mm (0.008 0.001 inches)

2004 - 2006 Kawasaki KX250F:

Intake 0.10 ∼ 0.15 mm (0.0039 ∼ 0.0059 inches)
Exhaust 0.17 ∼ 0.22 mm (0.0067 ∼ 0.0087 inches)

2006 Kawasaki KX450F:

Intake: 0.10 ∼ 0.15 mm (0.0039 ∼ 0.0059 inches)
Exhaust: 0.17 ∼ 0.22 mm (0.0067 ∼ 0.0087 inches)

2007 KTM 250 XC-F, XCF-W, EXC-F:

Intake: 0.10 - 0.20 mm (0.004 - 0.008 inches)
Exhaust: 0.12 - 0.22 mm (0.005 - 0.009 inches)

2007 KTM 400 XC-W, EXC:

Intake: 0.10 - 0.15 mm (0.004 - 0.006 inches)
Exhaust: 0.10 - 0.15 mm (0.004 - 0.006 inches)

2007 KTM 450 XC, EC-W, EXC:

Intake: 0.10 - 0.15 mm (0.004 - 0.006 inches)
Exhaust: 0.10 - 0.15 mm (0.004 - 0.006 inches)

2007 KTM 525 XC, EX-W, EXC:

Intake: 0.10 - 0.15 mm (0.004 - 0.006 inches)
Exhaust: 0.10 - 0.15 mm (0.004 - 0.006 inches)

2003 - 2007 Yamaha YZ250F:

Intake: 0.10 ~ 0.15 mm (0.0039 ~ 0.0059 inches)
Exhaust: 0.17 ~ 0.22 mm (0.0067 ~ 0.0087 inches)

2003 Yamaha YZ450F:

Intake: 0.10 ~ 0.15 mm (0.0039 ~ 0.0059 inches)
Exhaust: 0.20 ~ 0.25 mm (0.0079 ~ 0.0098 inches)

2004 Yamaha WR450F:

Intake: 0.10 ~ 0.15 mm (0.0039 ~ 0.0059 inches)
Exhaust: 0.20 ~ 0.25 mm (0.0079 ~ 0.0098 inches)

2003 Yamaha WR250F:

Intake: 0.10 ~ 0.15 mm (0.0039 ~ 0.0059 inches)
Exhaust: 0.17 ~ 0.22 mm (0.0067 ~ 0.0087 inches)

2004 Yamaha YFZ450 (Quad):

Intake: 0.10 ~ 0.15 mm (0.0039 ~ 0.0059 inches)
Exhaust: 0.20 ~ 0.25 mm (0.0079 ~ 0.0098 inches)

Yamaha Raptor 660R (All Years):

Intake: 0.10 ~ 0.15 mm (0.0039 ~ 0.0059 inches)
Exhaust: 0.15 ~ 0.20 mm (0.0059 ~ 0.0079 inches)

If you need help adjusting your valves you can see this thread: How To Check and Adjust Valves
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  #2  
Old 11-20-2009, 08:00 AM
json's Avatar
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1992-1998 Yamaha Timberwolf 2WD and 4WD

Intake: 0.05 - 0.09 mm (0.002 ~ 0.004 in)
Exhaust: 0.11 - 0.15 mm (0.004 ~ 0.006 in)

Good idea, will be nice to have a quick reference.

Last edited by Woody_393; 06-03-2010 at 05:46 PM.
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Old 04-16-2010, 10:27 PM
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2004-2007 Honda CRF250X:

Intake: 0.12 0.03 mm (0.005 0.001 inches)
Exhaust: 0.28 0.03 mm (0.011 0.001 inches)
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Old 06-03-2010, 12:16 PM
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Default Valve specs. 2009 Suzuki RMZ450

2009 Suzuki RMZ450

Intake: 0.09 - 0.16 mm (0.004 ~ 0.006 in)
Exhaust: 0.17 - 0.24 mm (0.007 ~ 0.009 in)

Last edited by Woody_393; 06-03-2010 at 05:46 PM.
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  #5  
Old 09-18-2011, 09:30 AM
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2005 Yamaha YZ450F

valve clearance (cold):
Intake: 0.10 - 0.15mm (0.0039 - 0.0059 in)
Exhaust: 0.20 - 0.25mm (0.0079 - 0.0098 in)

which appears to be the same as the 2003 as posted above....

Last edited by Woody_393; 09-19-2011 at 11:00 AM.
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