Thread: Discussion k&B 45 sportster
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Old Aug 28, 2012, 01:35 PM
datsunguy is offline
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The Sportster series ran on bigger props. The instructions said 11x7 or 12x6. Some have used as big as 13x6 with good results. That engine has no ball bearings and the piston is chromed aluminum and the cylinder is aluminum. There is not much to rust so straight synthetic is OK.
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