2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 44Get this manual
General Information FASTENER INFORMATION
Standard Bolt Specifications
or no vaporization will occurDroplets will form causing flooding and very hard startingIf winter blend fuel is being used during the summer months, it may cause vapor lock (boiling fuel) inside the fuel lines, fuel pump, or carburetorThis will cause warm engine drive ability problems and hard starting when warmSome states are limiting the Reid Vapor number to 9.0 PSI year around to help meet
evaporative emissions standards
The following torque specifications are to be used as general guideline when torque value is not specifiedThere are exceptions in the steering, suspension, and engine areasAlways consult the torque chart and the specific manual section for torque values of fasteners
Gasoline Volatility
MAXIMUM REID VAPOR
CLASS PRESSURE 7.0 psi (0.5 bar) 9.0 psi (0.6 bar) 10.5psi (0.7 bar) 12.0psi (0.8 bar) 13.5psi (0.9 bar)
AMBIENT AIR TEMP RANGE
LOW 60_F (16_C) 50_F (10_C) 40_F (4_C) 30_F (-1_C) 20_F (-7_C) HIGH 110F+ (43_C+) 110F (43_C) 97F (36_C) 85F (29_C) 69F (21_C)