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I think 797 needles will work. I believe I have a 740 or 797 with a MC100 kart motor installed. I'll send you a PM. Thanks!


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Same needles I have. MC100 is a very nice motor. Kinda rare actually as they were
only made one year before the 101 debut in 1967. I have one saw with a MC100 in
it and two with the MC75's in then. The 75's and 100's are the same motor @ 120cc's
just built in different years.
 
Same needles I have. MC100 is a very nice motor. Kinda rare actually as they were
only made one year before the 101 debut in 1967. I have one saw with a MC100 in
it and two with the MC75's in then. The 75's and 100's are the same motor @ 120cc's
just built in different years.
What cc is the MC70 motor?
 
Same needles I have. MC100 is a very nice motor. Kinda rare actually as they were
only made one year before the 101 debut in 1967. I have one saw with a MC100 in
it and two with the MC75's in then. The 75's and 100's are the same motor @ 120cc's
just built in different years.

I was pretty stoked once I found out what kind out what it was. I ordered a new piston for it but it is too big. . The rings fit and the ring gaps look fine, so I am just going to use the new rings with my old piston. It's kinda weird that the rings fit the bore fine.


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Well I have a 10-10 and pm700. None of which are running. Unfortunately my time is getting less and less lol
Feel free to send em my way. They will have a warm room and see plenty of loving attention. I know my 10-10 doesn't like sleeping alone at night. Give em some company.
 
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