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Old 11-May-2014, 09:07 PM
Fudoshin Fudoshin is offline
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Cool Valve clearances too tight to measure

I started adjusting the clearances on my 2000 748 but somehow screwed something up (not using the the shim measuring tools- which I now have!) which meant the was no clearance after adjustment to measure. I thought I'd start all over again and put the old shims back in but they're still too tight to get a feeler gauge in. I was very particular about which shim went were and which half rings belonged to which valve.
Any suggestions on how rectify/get to a point where I can take some measurements? What would you do if you where rebuilding a head?
I'm really enjoying the mini restoration of this bike and don't want to take it to a dealer.

It's only the horizontal head that needs sorting and if I have to take the head off then so be it but would obviously rather not..

Thanks in advance for your time..
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Old 11-May-2014, 09:09 PM
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DSC Region Organiser skidlids skidlids is offline
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Work out which is your smallest opening and closing shims and try those two in all positions and see if you can then measure some clearances and work out what shims will be needed where
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Old 11-May-2014, 09:23 PM
Fudoshin Fudoshin is offline
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Thanks, I'll give that a go..
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Old 12-May-2014, 05:16 AM
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dunlop0_1 dunlop0_1 is offline
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As Kev said. Also are you sure the closer shims are seating correctly. Once they have been out even with the original half rings they can sometimes need quite a bit of persuasion to seat correctly.

Also do not try and make a measurement/adjustment for both opener and closer at the same time. Do the closer and then the opener.

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Old 12-May-2014, 12:16 PM
Fudoshin Fudoshin is offline
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Hi, was careful with the closers but will check again but didn't think to do the two measurements/adjustments separately... Top tip - thanks guys, going to get on it on Wednesday and will let you know- cheers again. JP
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Old 05-Aug-2014, 09:29 PM
Fudoshin Fudoshin is offline
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hi guys,
its been an age but wanted to say that I got the shims sorted and thanks to your advice it became pretty straight forward.
Much appreciated!
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