<!-- m --><a class="postlink" href="http://www.youtube.com/watch?v=lHoacCDMrZk">http://www.youtube.com/watch?v=lHoacCDMrZk</a><!-- m --> Managed to get 2 sessions in before bad light stopped play this afternoon <!-- s:roll: --><img src="{SMILIES_PATH}/icon_roll.gif" alt=":roll:" title="Rolling LoL" /><!-- s:roll: --> Was great fun, a big learning curve. I dont think I did bad for a 250, all the other bikes were 600cc +. Date & time on the video wrong obviously. Didnt have any problems apart from finding the odd false neutral when changing down - always seemed to be the same corner after Druids........ I think the little fizzer surprised a few people <!-- s:lol: --><img src="{SMILIES_PATH}/icon_lol.gif" alt=":lol:" title="Laughing" /><!-- s:lol: --> Chris
I watched it a couple of days ago - looks like you had a great time. Don't know if it was an optical illusion but it looked like you seem to catch up to a lot of the other bikes under brakes. Looked like a bit of fun..
Yeah it was great, and that was no optical illusion lol. Going into druids hard on the brakes I was keeping up with nearly all bikes. Mid corner speed I kept high as I dared. Most overtook me using the grunt of the bigger engines from the bottom end of their power range. It was evens at speeds over 70mph (110Km/h) because it was easy to keep my corner entry speed up, if you know what i mean - i *knew* I didnt have to slow as much for the corners. I lapped my friend on his CBR600F (track newb like me) and overtook an old boy on a VFR750. I will admit I aint the smallest bloke, at around 240lbs, but the fizzer didn't do that bad at all. It was easy to average 1min 9secs which equates to an average of 100Km/h. I think the BT090 tyre I recently had fitted to the front helped alot. I liked it so much that I just got a 140/70 for the back <!-- s:mrgreen: --><img src="{SMILIES_PATH}/icon_mrgreen.gif" alt=":mrgreen:" title="Mr. Green" /><!-- s:mrgreen: --> I am worried what it will do for the gearing though! I think I may need a 57 or 58 tooth rear sprocket to compensate, more <!-- s:2cents: --><img src="{SMILIES_PATH}/th_2cents.gif" alt=":2cents:" title="2cents" /><!-- s:2cents: --> I have signed up for a mailing list of a 'classic bike' trackday organiser - anything pre '95 is allowed <!-- s:bananna2: --><img src="{SMILIES_PATH}/th_Bananna2.gif" alt=":bananna2:" title="bananna2" /><!-- s:bananna2: --> Chris
Try BT003 tires. More modern technology than BT090, read better compound/longevity ratio. I run 140/70 in the back and because of our crappy/short tracks in Ontario (where I get to go) I've gone to -1 front +2 rear sprocket, which means 16/58. That helped quite a bit, to be in the right powerband through most turns and top out at about 170, without redlining. I was also getting much faster to top end speed ... The shorter gearing would surely help you with the uphill sections on the particular track. But you will always give up to more powerfull bikes ... your chance are the technical slower sections. You should be getting much later on brakes and your corner speed should be higher than theirs. At least that's what it was in my case. Of course, that is only true if your are comparing yourself with riders of your or lower level. Better riders will smoke you everywhere on a faster bike. The other thing is, make sure that your bike is not running rich. Mine was at the time of the track day (I was lazy to check my carbs and fuel levels before that; I did it in winter, but i had no way to test it and then season started) and it was not really pulling like it does now (mileage per tank jumped by 25kms, that's how rich it was). I wich I could go back, but will have to wait until spring .... <!-- s --><img src="{SMILIES_PATH}/icon_smile.gif" alt="" title="Smile" /><!-- s --> You are lucky you have Brands Hatch so close. The surface looks as flawless as glass is. You should see what I am riding on here ....
I went with the 090 because they are about 10-15% cheaper, and it all adds up in the long run. I use the FZR250 as my everyday bike. I also went with a 140/70 (BT090) rear tyre. Just fits in. My god the gearing has changed though! I looked at the rear sprocket and a previous owner had fitted a 55T on it. After a week of running it with that I had enough of it bogging down in 1st and I fitted a new 56T stock rear sprocket I had. I think it really needs a 57T though. I also fitted a new airfilter, check the difference! After fitting that, and finally replacing cylinder 4 sparkplug, it runs worse over 11000rpm now <!-- s:???: --><img src="{SMILIES_PATH}/icon_confused.gif" alt=":???:" title="Confused" /><!-- s:???: --> Looks like a carb strip & clean and possibly new needles is on the cards over winter.. <!-- s:2cents: --><img src="{SMILIES_PATH}/th_2cents.gif" alt=":2cents:" title="2cents" /><!-- s:2cents: --> <!-- s:2cents: --><img src="{SMILIES_PATH}/th_2cents.gif" alt=":2cents:" title="2cents" /><!-- s:2cents: --> <!-- s:2cents: --><img src="{SMILIES_PATH}/th_2cents.gif" alt=":2cents:" title="2cents" /><!-- s:2cents: --> <!-- s:2cents: --><img src="{SMILIES_PATH}/th_2cents.gif" alt=":2cents:" title="2cents" /><!-- s:2cents: --> <!-- s:2cents: --><img src="{SMILIES_PATH}/th_2cents.gif" alt=":2cents:" title="2cents" /><!-- s:2cents: --> Chris
For 10-15% difference now way I'd run BT090. Plus 003 is multicompound tire where 090 is not, so I doubt that you are going to get more life out of 090s, because the middle strip is what will go first if you use the bike to commute. The one scenario where 090 will do better is rain, because of the groove pattern, so that might be something useful for you in rainy UK. I don't touch this bike when it rains, I commute on DRZ400 .... If you change rear sprocket to 57, it will not do much to do the gearing, because 17/56 is stock. You have to go at least 58. 16/58 really brings the bike alive, but of course you will run higher RPMs ... I think I do 12000 at 120 km/h in 6th gear where with the stock gearing I was at 10000 I believe. Anyways, it doesn't really bother me, because the better acceleration is what I was after, I don't cruise much with this bike .... <!-- s --><img src="{SMILIES_PATH}/icon_smile.gif" alt="" title="Smile" /><!-- s --> Sounds like your carbs need work. I posted in a different thread, do yourself a favor and check your fuel levels. Mine was so rich that by adjusting that, not only I get crisp throttle reaction now, but also 25 more clicks per tank! Drop the needle as well, unless you have done so already.
Interesting dual compound info...... Ding!! Yeah i was after a tyre that I could run in the rain Someone had fitted a 55T rear sprocket (std for the earlier FZR's). At 80mph I was running 12000rpm, the 140/70 dropped that to just over 11000. The biggest difference going to 56T standard 3LN sprocket made was that it didnt bog down in 1st gear. JT sprockets do a 57T sprocket but to get 58 I think I have to have one made up??? I will be honest now and say I haven't even looked at the front sprocket <!-- s --><img src="{SMILIES_PATH}/icon_redface.gif" alt="" title="Embarassed" /><!-- s --> so don't know what size it is. You are very right here and I have been lazy/reluctant to do this, doh! Over the winter it WILL get done! <!-- s:-| --><img src="{SMILIES_PATH}/icon_bike.gif" alt=":-|" title="Bike" /><!-- s:-| --> Since I fitted the new airfilter the bike is now doing more mpg (or L/Km). Mileage from top to reserve has gone up from 128Km to 152Km. More to be found I think. I may pick your brain when I have the carbs off <!-- s --><img src="{SMILIES_PATH}/icon_biggrin.gif" alt="" title="Very Happy" /><!-- s --> Chris
Look for FZR400 sprockets. It's the same bolt pattern and usually there's much better selection. My buddy has given me 55-58 as he used to race his FZR400. But for you it would be just much cheaper to drop front to 16. Stock should be 17. It will be cheaper and very little difference compared to 17/58 and wemoto has them in stock all the time. Just follow the write up on fuel levels here. It's perfect, including the bench/jig design. Simple and gets the job done nicely. But fire away any question you might have. Where did you buy the air filter and how much was it? I kind of heard the OEM are pricey, but never actually looked into them. I'd be definitely interested to change mine. It looks clean, but I doubt it is, all the sticky stuff accumulated in the paper over the years, or should I say a couple of decades.
It was a genuine yamaha part, cost £47 (UKP), and took 3 weeks to arrive. I kept the old one so I could maybe replace the paper with oiled foam next time. Seeing as I use the bike everyday except sundays, the better fuel mileage should mean it will pay for itself. Chris
