S&S Cycle

COMPRESSION RELEASES FITMENT • S&S cylinder heads and rocker boxes for big twin with compression release machining • Will not fit OEM heads ELECTRIC RELEASE: Solenoid operated, this system automatically opens and closes when the starter button is pressed and released. Convenient and simple, this is the best setup for big displacement high compression bikes. Requires S&S die cast rocker covers, page 105

55-1009

90-4915

COMPRESSION RELEASE KITS Description

Part #

53-0045

90-4915

Electric

90-4916

TOOLS AND ACCESSORIES Description

Part #

S&S Two-Piece Socket Kit: Allows in-frame installation of S&S compression releases and protects wiring from damage during installation.

53-0045

each 90-4916 2 pack 90-4916-2

S&S rocker covers must be used with electric compression releases due to clearance requirements for the solenoids. Rocker covers must be removed when installing S&S® compression releases. If lack of frame clearance prevents removal of rocker covers, engine must be removed from frame for compression release installation. In most cases, S&S compression releases can be installed while the engine is in the frame with the special S&S two-piece socket kit, part #53-0045 . If cylinder heads are machined for S&S compression releases, but compression releases are not used, special plug part #90-4916 (two required) must be installed to seal the machined hole. Stock cylinder heads cannot be machined for S&S compression releases because there is not enough material in critical areas.

S&S Compression Release Hole Plug

NOTES

REPLACEMENT PARTS Description

Part #

55-1009 55-1010

Silicone Solenoid Caps

Wiring Harness USA 2,3

Electric Compression Release Assembly USA 2,3

90-4914

110 Order 608-627-1497 S&S Late Models 1999–up