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PhilDawson8270

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  • Current Bike(s)
    Yamaha R6 - 2002

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  1. they're never worth it, unless you're racing and at the top of your game! larger bikes have so much power and torque, and performance, that putting race and performance parts on them for non competitive use is pretty pointless. Smaller capacity bikes such as 125 etc, don't gain enough from these kind of mods to make them worth while at all. Racing however, yeah they will help get more power, but it's gonna save you maybe 1/100th second per lap at the most, but then again, unless you are exceptionally good, you will probably lose this time in one corner. So, road vehicles, useless. Race machines, more time to be had, for free, by improving your own abilities.
  2. To be honest, the market is tiny, and difficult to make work on a large scale. I build carbon fibre components, the problem is, that as mine are hand made, and in smaller quantities it's extremely difficult to compete with companies that specialise in this kind of thing. Stuff like huggers, chain guards and mudguards etc I can beat on price. But when I priced up doing track bodywork for a friend, it was cheaper for him to buy it from a large company. I only really custom parts now, as it's the only market left.
  3. Did you charge the new battery fully before you fitted it to the bike?
  4. Glad you have traced it back now, as others have said, unplug, unbolt and reverse it. And no, it shouldn't be covered in any kind of powder!
  5. Follow this guide, this will test the full charging system with nothing more than a multimeter. Follow the steps, and it will it narrow down your exact fault. http://www.electrosport.com/media/pdf/fault-finding-diagram.pdf
  6. buy new rec, unplug old one, plug new one in. I'm off to bed now as work again in the morning. I will post up detailed reg/rec test sequence tomorrow
  7. If you're hearing an electrical sound but it's not turning over then it's likely the battery is flat. If it cut out while riding, it's like the reg/rec isn't charging the battery. Additionally, batteries don't like the cold, and will die quickly if not left on a maintained charger through unused periods in winter,.
  8. To be 100% sure, you could just call Yamaha up, and give them the frame number, they will tell you what the model is within seconds.
  9. Go with EBC HH mine are fine, after 2 trackdays, and about 1000miles, and are still fine! Unless you're a racer, you need no more power. Make sure you copper grease the rear of the pads to stop them squeeling though
  10. haha, cold you say?! I was at Oulton Park for a trackday at 7:30am on 3rd! That was chilly, especially in leathers at 100+
  11. No reason for me to echo what all others have said about it being the better rider, that is obviously true. Out of curiosity here are some figures. YBR 10:1 Compression YZF 11.2:1 Compression YBR 7.5kW @ 7800 YZF 11kW @ 9000 YBR 9.6NM @ 6000 YZF 12.2NM @ 8000 Can see here the YZF is slightly more powerful, but will need to be worked harder to keep the revs higher for the performance. YBR 5speed YZF 6speed This will help with keeping it revvy, as gearing will be short, but may be a hassle town riding. Caster and Trail both are shorter on the YZF giving quicker steering, and wider tyres giving it higher lean angles, and is likely to also have larger ground clearance for faster corner speeds. YBR is 125kg YZF is 138kg So you already have 13kg weight advantage. All being equal the YZF-125R will probably be slightly quicker, but biggest difference will be the handling, unfortunately it is down to the skill of the rider to extract the most from a machines handling.
  12. I'm working Tuesday, so it's looking like I'll be down on Wednesday. Really wanting a go of the enduro, motorcross and trials riding!
  13. If you're not attempting to get it running as well as possible with a smaller airbox, then just make something fit and play about with it till it runs how you're happy with. It all depends what you're aiming for to be honest. I found a lot of internet articles often came with a lot of garbage in them too.
  14. Best thing to do is get down to a library and take a good old fashioned, no bullshit book out about 4 stroke engine tuning.
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