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1969 CT1

  • yamahahaha
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1969 CT1 was created by yamahahaha

New to me bike. Had stuck piston Pulled the head. Can someone tell me what size piston this is going by the numbers on piston?
l checked using an inexpensive digital caliper 66mm
 
Last edit: 02 Aug 2021 14:41 by yamahahaha.
02 Aug 2021 14:39 #1

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Replied by RT325 on topic 1969 CT1

Standard size. 97 2 numbers are just increments of clearance of the standard 66mm. Not sure about the 5--13, but K is for keystone rings with the tapered top surface. 'From what i remember' anyway & happy to be corrected.
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02 Aug 2021 16:45 #2

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Replied by yamahahaha on topic 1969 CT1

Thanks RT
02 Aug 2021 17:03 #3

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  • MarkT
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Replied by MarkT on topic 1969 CT1

Agreed.  Standard.
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
02 Aug 2021 19:16 #4

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