1987 KTM MX 540/550 Big Bore Rebuild

KTM Two Stroke 7/7/2026 3:38am
7/7/2026 3:38am
srxsean wrote:

Do have the Con Rod details from Samarin 

Also the Rod lengths. 500 short stroke to 550 if there are differences ? 

There are two different rods (137mm from 1985 to 1988  500    and 140mm - 350-500-550 from 1989 to 1995 , 3 different strokes (78mm 1985-1988 > 500   and 80mm 1989 to 1995 > 500 , 

82mm Stroke 1985-1995  > 540/550 


 

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