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Yamaha 4 Stroke Yamaha 4 stroke engines

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Old 12-11-2009, 03:05 PM   #1
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VX110 Compression numbers

What are good compression numbers for these engines?
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Old 12-15-2009, 12:23 AM   #2
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Re: VX110 Compression numbers

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Originally Posted by ncdoo View Post
What are good compression numbers for these engines?

The shop manual for my 09 VX sez minimum compression is 164. Mine was pushing 250 when the 10 hr service was done
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Old 07-21-2011, 01:39 PM   #3
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Re: VX110 Compression numbers

Mine is an 05 and I only have 60 psi compression.
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Old 07-23-2011, 08:10 AM   #4
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Re: VX110 Compression numbers

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Mine is an 05 and I only have 60 psi compression.

You, my friend have some work to do

Put a half ounce of oil into each cylinder, let it sit for a bit, then try your test again. Who knows...if it's a seized ring you might get lucky?
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