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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Piston rings
Post Info TOPIC: Piston rings
One1


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Piston rings
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i need to measure my ring gap. 

 

1- what is the ring gap for top and bottom ring?

2- whats the factory part numbers for standard rings? 

4GY-11603-00-00 ??????

3- what are the size for standard rings and bore?

 

thanks!



-- Edited by One1 on Thursday 18th of May 2017 08:21:12 AM

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ttr steve


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The number you have given is for a standard piston ring set.

Piston Size (mm)

72.95 (standard)

Steve



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One1


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Excellent that's what I'm looking for I don't believe this bike is been oversized thank you.  Now I just need to know what my end gap Readings are supposed to be if anyone knows



-- Edited by One1 on Thursday 18th of May 2017 05:08:42 PM

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JOHNYBOY


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rule of thumb 4 thou per inch

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TTRfan


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Worth buying a manual - see https://totallyttrs.com/epages/699105d9-e4cc-4b32-b236-84e72cd67f84.sf/en_GB/?ObjectPath=/Shops/699105d9-e4cc-4b32-b236-84e72cd67f84/Categories/Shop/Workshop_and_owners_manuals

Piston and bore checks 3.jpg

Brian



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