the proper gear oil for a 125 is yamalube 10w 30
I belive that the forks on a 250f are the same so that would make it 100mm for a person who would weigh inbetween 160-190lbs.
what grade of oil goes in a 2006 yamaha sirago
Yamaha
the Yamaha ttr125 goes about 50 to 55 mph
For a 2001 Yamaha YZ250, the recommended amount of fork oil is approximately 486 cc (or 16.4 ounces) per fork leg when using 5-weight oil. It's important to ensure the correct level is maintained for optimal suspension performance, so check the service manual for any specific instructions regarding air gap or oil height. Always use the recommended oil type and viscosity for best results.
The 1983 Yamaha YZ250 typically requires about 10.3 ounces (or approximately 300 ml) of fork oil per leg. It's important to use the correct viscosity, generally 10W, for optimal performance. Always consult the owner's manual for specific recommendations and check for any model-specific variations.
2 mph
200litres
Check these out Yamaha-motor.com see link to the right goes back to 1965 yamaha motor manuals online
A Yamaha ttr 125 weighs just about 198 pounds and goes 65 mph
The yamaha grizzly 80 goes 38 mph I have one and it says it in the instruction manual.
It goes around 50 mph