1988-1991 Yamaha Sno Scoot SV 80/E Snowmobile Service Manual, Page 146Get this manual
IGNITION SYSTEM WARNING:
IELECI iii I
Do not move the throttle lever more than necessary so that the engine will not run faster than the following revolutions at which the snowmobiles starts to more offEngine Revolutions: 4,000 rmin
OUT OF SPECIFICATION
MEETS THE SPECIFICATION
Ignition system is good
3Main switch conduct check:Disconnect main switch coupler (BlackWhite, Black) or (Red, Black, Brown, RedlWhite, BlacklWhite)-Connect pocket tester (YU-03112) to main switch leads (BlacklWhite, Black)