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Old March 3rd, 2017, 11:16 AM   #16
Motofool
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Name: Hernan
Location: Florida
Join Date: Mar 2011

Motorcycle(s): 2007 Ninja 250

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MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
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Quote:
Originally Posted by juliusmichaelhonrada View Post
.............
So we decided that we will tear this engine down in sunday , any tips , thoughts , ideas on what to look for and specialty techniques on removing or assembling something will be appreciated specially on the valve springs?........
Before full surgery, I would do a compression and a leak down test with the cover of the valves removed.

Here is how:
http://www.dansmc.com/compression_test.htm

http://www.dansmc.com/leakdown.htm

Even if you don't have the gauges and adapters, a rough test could reveal leaky rings or valve's seals/guides, even a perforated piston.
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