Two weeks ago I picked up my 1992 CBR 1000 F and she was real hard to start I replaced the plugs and the fuel filter which helped a little but it was still hard to start in the mornings ( turn the motor over of up to 10 to 15 times before it would fire). When I picked up the bike and rode 600 Ks home with it I was told to run it on Premium Unleaded but once I got the bike back home Central Queensland I decided to re - place the fuel with plain unleaded I think it is 93 % octane, and every time for the past week the motor catches on the first turn and its running. Has anyone else had that problem ???

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I used Shell Standard Unleaded at first, but now use Shell 98 Octane
I do notice that the bike has a bit more power on 98 than 93 (just noticeable, I think)
I have been told by a bike shop to stay away from BP(I think it was BP??) as they have had problem with fouling plugs.

I never use to start the bike with the choke, and it would fire on about 2 cylinders before all four would fire, now I start with the choke and it now starts on 4 straight away and the choke holds the idle for me, where before I had to hold it up a little for a minute with the throttle.

At first, I found the bike a little tricky to start, but now, I've worked it out.


Gold Coast - Queensland

 

I use 95 oct and she runs nicely and starts at once. The choke helps getting petrol when the bike is cold and stayed for a while. There is no petrol pump in my -90.