Math hi how its working? how match is 8:1000 and how we know it is 125?

Hi, I'm a 45 yr Yamaha mechanic & take this advise or not, But if your harness is been stripped open or cut up badly, You definitely need to replace it with new from a Honda dealer. You MUST have the correct year so take the 17 digit serial number with you. It is stamp on the MAIN FRAME somewhere. You can install it, It isn't very hard to do. All the plugs have matching wires & connectors. Just look at the colors of the wires going into & out of a plug. They almost always match up. The very few that don't will have the only matching plug in that section. Then if you come to a plug or wire that you don't know, Any Honda mech. can tell you that exception. Or come back to me at that point. Don't try to wire it without a good harness, You can burn out some expensive parts if not already done.

weight it with you on it.
and divide total weight by HP
bingo.

simple basic math. WR= W/HP (algebra)

Type solve(log(x^5,16)-log(125,64)+log(x^(1/2),4),x,0.5
Its equation with guess 0,5. Then press enter and you will give result
x=5^(1/3)=1.70997
Or, you can use equation solver with eqn=0(MATH, then B option)
See captured images below

There's a cube root function in the MATH menu. As an example, to calculate the cube root of 125, press MATH 4 1 2 5 ENTER .

The black fuel line goes to the large matching spiggot on the L/H side of the carby. The clear/semi clear hoses all go down towards the back of the carby under the airbox between the motor & swing arm. These are all overflow hoses(incase you crash or the float needle & seat sticks in the carby bowl). DO NOT connect these small hoses from one little spiggot to the other little spiggot.
Hope this helps
Regards Andrew Porrelli

the only way to tell is to match them up with out knowing exactly what year they both are its hard to tell but the change every couple of years