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.
@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.
Nice Job !!!
gomezpiro 2 weeks ago
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.
chieftec98 1 year ago
@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.
its0a0me 1 year ago
Great!!
Skyisnotalimit 1 year ago
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
me too jucah.haha..my motorbike would go faster if he would put his hands on
00allengarcia00 2 years ago
@00allengarcia00
yup yup
very smart grandpa
LOL
jucahi1 2 years ago
This has been flagged as spam show
good video thanks
JAMRACING21 3 years ago
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