either over or undersized tires or other than stock gears ? or a svv valve or instrument panel goin out...
Speed sensor...on the passenger side of the tranny where the axle enters the transmission.
The speedometer error on a 2011 Yamaha Raider can vary based on factors like tire size and modifications. Generally, it is reported to under-read by about 5-10% compared to GPS measurements. For the most accurate assessment, it's advisable to compare the speedometer reading with a GPS and consider any modifications made to the bike.
The size of tires can effect that accuracy of a speedometer. Larger tires will cause the speedometer to read less than you are actually going.
Cruise will NOT work if the speedometer has a problem
instantaneous speed. =)
Broken speedometer cable.
The speed you read from your speedometer is called your "indicated speed." This value represents the speed at which your vehicle's wheels are rotating, not necessarily your true ground speed due to potential inaccuracies in the speedometer reading.
the logical choices is:: MAY BE YOUR DISK IS DAMAGED; SYSTEM MALFUNCTION; AND INVALID HARD DRIVE
Is the TCM working normally and throwing no codes?
Speedometers are not allowed by law to under-read, but are allowed to over-read by no more than 10%. So at a true 30mph, they can legally read anything between 30mph and 33mph. Because they read the speed via a sensor in the transmission, not the true speed of the vehicle across the ground, they have to be calibrated such that they under-read slightly when the vehicle is lightly laden and has brand new tyres fully inflated. As the tyres wear, and if they are slightly under-inflated, or compressed by a greater load in the vehicle, the speedometer will over-read by more.
If the speedometer and odometer are both not working, I would blame the speed sensor. If only the speedometer does not work and the odometer does work, the cluster is bad.
Could be one of a thousand things. Go to a shop and have them read the error code.