Fuel to use for cbr250rr?

[Marky]

Hi all,

I am plaining on buying a cbr 250rr and am just curious on what fuel to use.

A mate told me to use 98 and someone else said to use 105 octane racefuel, that one sounds a bit extreme but i dont no very much about the subject so any tips or feedback would be much appreciated.

[scooterboynz]

i personally use 96 , i have heard that race fuel can perish the rubber hoses on older bikes if left sitting for a while , how true his is i am not sure? if i was you i would use 96

[James Deuce]

It will be fine on 95.

Try all the normal pump gas until you find what works best for you. Run a tank through to reserve, and then fill up with the next type. "Race" fuel? 95 Octane unleaded in MotoGP.

[scooterboynz]

"Race" fuel? 95 Octane unleaded in MotoGP.

105 octane is sold out at puke and st hway 16 on the way into kumeu

[HDTboy]

I run mine happily on 91 all day every day

[James Deuce]

105 octane is sold out at puke and st hway 16 on the way into kumeu

Yes but my point is is that it is completely unecessary, and given that it burns really slowly, if you don't do a bunch of other changes like plugs, and maybe increasing the compression ratio, you may end up spending more money to make your bike go slower. Or even reduce it's maximum speed to the speed at whihc you can push it.

[bugjuice]

lol.. 105!?!? good luck finding that at your regular motion lotion station..
most of the older bikes were designed and built during the golden age where 91 was a premium buy.. so stick in it what you can find.. you might find 96/5 might give it a little more ummph, but doubtful. 91 will be fine..

Newer bikes benefit from higher rated fuel, but you don't have to worry about that just yet..

[SARGE]

CBR250's are not super high comp motors.. alll you do when you constantly run 96+ through her is waste $$..

run Gull 91 and once every 4 or 5 tanks, hit her with BP98 and give her a fang to de-carbon the valves

[The_Dover]

Use diesel bro, it will give you bags of torque and a nice V-Twin rumble.....

[FlyingDutchMan]

CBR250's are not super high comp motors.. alll you do when you constantly run 96+ through her is waste $$..

run Gull 91 and once every 4 or 5 tanks, hit her with BP98 and give her a fang to de-carbon the valves

You're much more likely to carbon them up with 98 than 91 simply because it runs too cold. You cannot get more power/efficency out of an engine by running a higher than required. All the CBR250 needs is 91, so you're wasting money by putting 96 or 98 or anything higher in.

[Magua]

I went from 91 to 96 in my fzr250. I didn't notice a difference.

[Paul in NZ]

I went from 91 to 96 in my fzr250. I didn't notice a difference.

What? Miles an hour?

[Magua]

What? Miles an hour?

88mph.....

[texmo]

I went from 91 to 96 in my fzr250. I didn't notice a difference.

I was gonna have a fizzer as a loaner bike from Mt. Eden but ended up giving me a ZXR250, I must say after riding that fzr not offence, but why the fuck would you buy one, ok its a little less money, but you get that money back..
I would far rather have an rg150 which is in the same price bracket... It was just shit brakes shit tyres shit frame shit handling not much power.... there was some strange clicking nosie coming from the motor that was "normal" I mean its already a peice of shit what is another design floor? if you own one, please flog it off to some poor punter, and get something else... Please

[myvice]

Ran 96/98 in my CBR, didn’t have any problems with it fowling up and I used to get about 200ks before hitting reserve.
Same as my Bandit...
108 is race gas and if you want to go faster then get a bigger bike!