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Old 02-19-2020, 12:44 PM   #30
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Join Date: Aug 2007
Posts: 250
I wouldn't want to lubricate the O rings with something that might break down the questionable composition of that Chinese rubber, over time.
I have rebuilt the carbs on both my bikes. The 05 was done in 2017 and the 04 was done in 2018.
Neither had given the slightest problem nor had either been apart before, so I figured it was time to have a look inside them.
Everything I removed looked as good as what I put back, still haven't had a problem and intend to keep it that way.
I see no reason the OEM parts I used won't last as long as what was installed at the Mikuni factory if I am able to assemble these carbs with equal care and precision.
A tube of genuine O ring lubricant won't break most of us up so it worth taking a chance to save a dollar or two?
Not to me.

Last edited by wotnnc; 02-19-2020 at 03:43 PM.
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