Compression on TS1?

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alanscottj
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Okey dokey, decided to take top end off and have a look. Barrel is spotless but checking rings, put top piston ring into the barrel and the gap is 0.8 - does this mean it is time for new rings?
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garry inglis
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Image this is watt mb recommends


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garry inglis
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So 0.8 seems big and might be why the compression is down


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alanscottj
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garry inglis wrote:So 0.8 seems big and might be why the compression is down


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Yup, measured them both and both are larger than recommended - top ring 0.8 and bottom ring 0.7 :(
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garry inglis
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Easy to sort out Alan and you only have to take it easy for 50 miles and should be a lot more responsive


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alanscottj
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The piston that I have is a 'B', does this have any bering on the rings I need to get? Or, can I just order normal TS1 225 piston rings :?:
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Padge
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just order normal TS1 piston rings and gap accordingly
alanscottj
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Padge wrote:just order normal TS1 piston rings and gap accordingly

Cheers Padge :D
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garry inglis
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How many miles on those rings and what 2 stroke are you using just to understand why?


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Scooterdude
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Also what's your piston to bore clearance am guessing it should be around .003"
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