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I'm running 147.5's with slip on exhaust and drop in K&N filter....my fuel light came on at 103 today with pretty even mix of highway and city...what do you think? Can I do better?

anyone ran these? http://cgi.ebay.com/ebaymotors/Improve-MPG-Vmax-1200-4-air-filters-breather-52_W0QQcmdZViewItemQQhashZitem1c0e988fdbQQitemZ120503963611QQptZMotorcyclesQ5fPartsQ5fAccessories

in the manual it shows the california models use a 130 throttle valve (brass butterfly) and the other states use a 125.....whats the difference? what difference would swapping from one to the other have?

Looks like the smallest section of the stock header is 1 1/4 diameter. Are the aftermarket versions of Marks, Kerker UFO all 1 1/2 inch?

Just thought I would ad. I purchased some "03 04 05 R6 06 07 08 09 R6S YAMAHA PLUG COIL W HARNESS" on ebay. Looked great apon inspection. I messured the resistance and they all messured 0.8 ohms. I figured this was low but in installed them anyhow. On first fire up seemed ok. I noticed...