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Old 11-04-2004, 01:34 AM   #35
Cartman
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Join Date: Mar 2002
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Quote:
Originally posted by InitialD
Carb is easy. You can use whatever you have just as long as you make sure you use the insert and you're legal.

For crankshaft, EFRA has a crankshaft restriction which is max 7mm bore, no scoops joining into the bore unlike IFMAR. For the piston / sleeve liner, both IFMAR and EFRA does not have any exhaust port restriction either.

p/s: I may be wrong but I thought the exhaust pipe diameter outlet should be 5.2 mm max and that the carb is 5.4 mm max...
your measurements are correct
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