Pro 1 Racing Head
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Uploaded by ShortBlockCharlie on Jan 16, 2009
Step by step valve seat and valve guide removal and installation of custom made racing valve guides and flowed seats.
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@chieftec98~ u can do a "leak down" test on the combustion chamber, with the valves installed and seated with the valve-spring pressure, to see if there is any leakage of the valves. Of course, to do this u will need to remove the cylinder and block-off the bore so no air can leak through it. U could bolt it on to a piece of wood.
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Hi, Im about to change my inlet valves on my crf 250 09. The bike has ran 60 hours. But i wonder do I have to recut the valve seats? Many mechanics say that with the inlet titanium valves on the crf 250 yo dont need to cut new seats as long as they look ok.
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Great!!
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me too jucah.haha..my motorbike would go faster if he would put his hands on
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Nice job,glad to see after all these years some good info getting out there.Wish it showed a little more detail but good job.
mxrules5 3 years ago 12
i wish i had a granda like him...... LOL
i could be getting my crf serviced for free! =)
good video. they do work really professional on these heads.
bad ass service
jucahi1 2 years ago 5