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  #1  
Old 02-12-2006, 02:02 PM
Rcredhots's Avatar
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Default 2005 YZF 250 Valve clearance


Trying to save a buck! Or not!
I have or I think I have the knowledge to check the valve clearance on my sonís 2005 YZF 250.
What I donít have is the correct set of feeler gauges.
Does anyone have any Idea how to go about getting a set, not just to check if they are in the range of OK or not.
I want a set of feeler gauges to find if in fact exactly what I need to do (change or donít change the shims)
If I need to change the shims and not to have to take it back apart 2 or 3 times to get it correct.
The fact of the matter is what if they are not in the range, it would be a guessing game and back to the take apart 3 or 4 times. (Am I correct?)
The service manual wants you to get the exact measurement look in the service manual and determine whether or not you need to change the shims.
Is it a guessing game at the bike shop? No punt intended
Anyone have any idea what the bike shop uses or how to go about getting a set of feeler gauges that will do the job! (Looks to me like they need to be from the low end to the high end 0.08-0.25 mm in 0.01 mm increments)
Any advice I will be more then happy to take it all in.
Thanks!
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  #2  
Old 02-12-2006, 04:23 PM
yfz450alterego's Avatar
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Default Re: 2005 YZF 250 Valve clearance

I bought my feeler guages from Sears. I just jotted down the clearances for the intake and exhaust and made sure I bought a set in the range of both.
As far as the guessing game on re-shimming. I'm not sure what you're trying to say. My friend has an 06 YZ250F and we looked at his service manual and there's a conversion chart in there on what size shims you use vs. what's in there now.

I own an 05 YFZ450 and the chart is identical except of the sizes. It took me a few times to comprehend the chart but once you understand how to convert it it's a piece of cake.

If you don't have a service manual I highly recommend getting one online or at your dealer.

Good luck.
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  #3  
Old 02-12-2006, 04:55 PM
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Default Re: 2005 YZF 250 Valve clearance

Quote:
Originally Posted by yfz450alterego
I bought my feeler guages from Sears. I just jotted down the clearances for the intake and exhaust and made sure I bought a set in the range of both.
As far as the guessing game on re-shimming. I'm not sure what you're trying to say. My friend has an 06 YZ250F and we looked at his service manual and there's a conversion chart in there on what size shims you use vs. what's in there now.
I own an 05 YFZ450 and the chart is identical except of the sizes. It took me a few times to comprehend the chart but once you understand how to convert it it's a piece of cake.
If you don't have a service manual I highly recommend getting one online or at your dealer.
Good luck.
I do in fact have the service manual
What I meant about the guessing game.
Let me try to clear it up.
I donít want the feeler gauges (0.10 and a 0.15) and also (0.17 and a 0.22)
I am just trying to get the recommended set / range of gauges I need and width, I found the ĹĒ is too wide
I guess that is what you are saying about going to Sears.
I will check it out.
Thanks!
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Old 02-12-2006, 09:34 PM
Woody_YZF's Avatar
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Default Re: 2005 YZF 250 Valve clearance

I checked my valves last night on my YZ250F (2003) and the middle intake valve would not accept the feeler gauge, so make sure you get some narrow ones (as I think that's what you're saying). I too would check out Sears, I'm sure they make some more narrow ones.

Also you have to remember that the shims come in .05 increments, so you don't need every .1 feeler gauge because in most cases you're only going to be able to get within the range, not exactly in the middle of the range. I hope that made sense.
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Old 02-13-2006, 05:12 PM
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Default Re: 2005 YZF 250 Valve clearance

Quote:
Originally Posted by Woody_YFZ
I checked my valves last night on my YZ250F (2003) and the middle intake valve would not accept the feeler gauge, so make sure you get some narrow ones (as I think that's what you're saying). I too would check out Sears, I'm sure they make some more narrow ones.
Also you have to remember that the shims come in .05 increments, so you don't need every .1 feeler gauge because in most cases you're only going to be able to get within the range, not exactly in the middle of the range. I hope that made sense.

Thanks for the help and advice!
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