2003 Yamaha Motorsports VMAX Owners Manual - Page 29
2003 Yamaha Motorsports VMAX Manual
Page 29 highlights
INSTRUMENT AND CONTROL FUNCTIONS Your Yamaha engine has been designed to use regular unleaded gasoline with a pump octane number [(R+M)/2] of 86 or higher, or a research octane number of 91 or higher. If knocking (or pinging) occurs, use a gasoline of a different brand or premium unleaded fuel. Use of unleaded fuel will extend spark plug life and reduce maintenance costs. Gasohol There are two types of gasohol: gasohol containing ethanol and that containing methanol. Gasohol containing ethanol can be used if the ethanol content does not exceed 10%. Gasohol containing methanol is not recommended by Yamaha because it can cause damage to the fuel system or vehicle performance problems. 3 1. Starter (choke) lever EAU00211 Starter (choke) lever Starting a cold engine requires a richer air-fuel mixture, which is supplied by the starter (choke). Move the lever in direction a to turn on the starter (choke). Move the lever in direction b to turn off the starter (choke). 3-8