These pistons have been modified to use three oil ring rails to correct an occasional oiling
problem. After checking end gaps, the extra oil ring rail should be installed in the recess cut in
the land separating the second compression ring from the oil ring. Be Sure to index end gaps
on the oil ring rails opposite one another.
Service Bulletin #6
1984
Revised 9-12-91
Copyright ©, 1984, 1991
by
S&S Cycle, Inc.
All rights reserved.
Printed in the U.S.A.
S&S® Cycle, Inc.
Box 215
Viola, Wis. 54664
Phone 608-627-1497 • Fax 608-627-1488
Service Bulletin #6
S&S 3' Bore #3500 Series and 3
3
/16" Bore #3700 Series Pistons
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