Is racing fuel good to run in a yz250f with a megabomb and 4.1 with a wiseco piston?

Question

i just use the expensive gas from the gas station and im wondering if i can use just racing fuel.

my friend said that your bike has to be all moded to run racing fuel so is this true?

Answer 1

unless you have a high compression piston in it then it won't matter

Answer 2

Hard on your valves, not worth it.

Answer 3

no you can run premium and it is not likely that you will notice any difference..... unless your real name is James Stewart

Answer 4

your piston is the key, wiseco, just keep an eye on your head temperature, buy you a laser temperature gauge. remember colder is crispier.