There is no engine or mapping difference from 2007 to current model year, and there certainly isn't an 8~9 HP difference from 4500 to 6000 rpm. Also, performance is unchanged.
I owned a 2009 Versys that would pull the front wheel: easily in first gear, pretty easy in second gear, and moderately willing in third- over a bump or small rise. It was PEPPY (from 3K rpm & up)....one of the sweetest motors I've had the pleasure of riding over the past 25+ years of street riding and ~50 bikes owned. The above performance was experienced without clutching and on relatively flat ground-- using technique and power.
I rode a 2011 Versys. It felt detuned, in comparison! No way would it pull the front wheel in 2nd/3rd, like my '09 (same conditions). This inquiry isn't about wheelies, but rather power (& torque
). What changed from 2009 to 2011, to cause the bike to lose the "hit and pull" that it had in the 2009 bikes? Granted I've only ridden one 2011 bike, so I assume that it runs as it was engineered to perform. It (the 2011) ran smoothly and didn't miss...it just didn't have that feeling of raw horsepower/torque, like the last one.
Anyone know of anything that changed or why the '11 felt down on power (more specifically= torque)? It's a ~2,000 mile bike, not ragged out, stock.
On a side note, the first Hayabusas were touted as the fastest, before they were "restricted" to limit topspeed.
Has there been a performance restriction engineered into the later model (USA) bikes? I could easily see Uncle Sam imposing regs to shift emphasis towards EPA & fuel economy. Could it be a California bike (I'll check), and do they have emission/operation requirements which impede performance ?
Thanks in advance. I was surprised! IF the bike was carbuerated, it felt as IF the needle needed to be lowered a notch or two (add fuel to mid range) and a high-flow air filter needed to be added, in order for it to breath/pull like I know it should. Hopefully, that helps summarize the experience a little better.