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15t Compression

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15t Compression

Post  Brentis1 on Sun Dec 04, 2016 6:14 am

Hi Guys,
I was keen to a do a compression test before I dismantle my Fulmar 15t engine to get a Guatemalan on how worn it is. Does anyone have any idea what level of compression is acceptable.
Cheers
Brent

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Compression

Post  kerabo on Sun Dec 04, 2016 8:23 am

I would not read too much into compression in a 2 stroke. More how well it holds what it has. You can feel the main compression and should feel a crankcase compression as well
Remember that although it may have say a 60mm stroke until the piston covers the transfer and exhaust ports it can't compress.
Regards Ken
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