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About Ozzy79

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    TT Newbie

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  1. Hi Guys, I have a WR250R and have removed the stock exhaust with the oxygen sensor and installed a FMF Q4 (no O2 sensor). What effect will this have on the ECU? Will it be running lean? Should I buy the FMF programmer or just get the ECU programmed by Yamaha? Any help is appreciated.
  2. Hi Guys just after some info on what to do with the oxygen sensor that I have removed when installing the Q4 fmf slip on. I have the Australian model WR250R, which does have an O2 sensor on the stock pipe but no where to put it on the fmf pipe. What are the consequences of running the bike without it? Cheers
  3. Hi all, my first post, so here it goes. I am 6'2 about 200 pounds and riding experiene of mx yz250. I am after some suggestions for a new bike mainly for Aussie bush trails and some commuting to work about 10mile round trip at 40mph max. stop start at lights etc. The bikes I am considering are the Yamaha wr250r (may be a little underpowered), Husky te 450 or 510 and the Ktm 400 exc. Any comments would be great.