07-04-16, 10:53 PM
(This post was last modified: 07-04-16, 10:54 PM by Tommy250_2.)
I can't answer all your questions, however, I recently acquired my first gen 1 and it was exup-less thanks to previous owner. It was lovely over 6000rpm but not so nice under that - particularly at steady throttle around 3000rpm (30mph in 2nd gear). I got an exup valve from a set of 1999 R1 headers. The bike then felt as good under 6000rpm as it did over 6000rpm. None of my previous bikes have had exup valves and so I was wasn't sure what to expect, but now I'm a convert! Bike pulls strongly from much lower in rev range.
Some choose to remove the exup... But as a newbie who has experienced a stock engine with and without an exup I can 100% say that the exup adds a huge amount to the character of the fazer.... It's a different, and in my opinion, a much better bike with the exup valve present.
Some choose to remove the exup... But as a newbie who has experienced a stock engine with and without an exup I can 100% say that the exup adds a huge amount to the character of the fazer.... It's a different, and in my opinion, a much better bike with the exup valve present.