2005 Ski-Doo Racing Handbook, Page 133Get this manual
SECTION 05ENGINE PREPARATION
AVAILABLE RAVE SPRINGS
Wire DiaSpring PN mm (in) 420 239 948 420 239 944 420 239 942 420 239 941 1.0 (.039) 0.9 (.035) 0.8 (.031) 0.8 (.031) Free Length mm (in) 38.0 (1.50) 48.5 (1.91) 42.5 (1.67) 52.5 (2.07) Preload in (LBF) at Compressed Length of 14 mm (.551 in) 19.5 (4.37) 15.9 (3.56) 7.3 (1.64) 10.5 (2.36)
Bench Test for Checking RAVE Valve Operation