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YZ 80 2001 What should compression be?

This is a discussion on YZ 80 2001 What should compression be? within the 2-Stroke Motorcycles - Yamaha forum, part of the 2-Stroke Motorcycle Forums category; Any Idea about what the compression should be on a YZ80? A friend just did his son's top end and ...

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Old 04-18-2006, 10:30 AM
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Default YZ 80 2001 What should compression be?

Any Idea about what the compression should be on a YZ80? A friend just did his son's top end and it runs with no power. He's borrowering my gage but doesn't have a manual.

Thanks
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Old 04-18-2006, 02:11 PM
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Default Re: YZ 80 2001 What should compression be?

i had a 99' yz 80 and ive compression checked it and they are the same bike............buuuut im at school right now so when i get home i will find out the compression for you

good luck
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Old 04-18-2006, 02:22 PM
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Default Re: YZ 80 2001 What should compression be?

A 80 should be about the same as a 125...therefore, 150 and above is in the great range, but a little lower than that is fine as well.
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Old 04-18-2006, 02:49 PM
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Default Re: YZ 80 2001 What should compression be?

Quote:
Originally Posted by crazyrydermx
A 80 should be about the same as a 125...therefore, 150 and above is in the great range, but a little lower than that is fine as well.
yeah, thats it 150 for an 80cc and about 50-180=125cc
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Old 04-18-2006, 02:52 PM
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Default Re: YZ 80 2001 What should compression be?

50-180
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