04-21-2014, 10:51 AM
Gentlemen, thank you all for you input. There may be just one small, misconception though. My bike will pull strongly below 3000 RPM if I twist the throttle back far enough, it just doesn't "inject" cleanly at very small throttle openings and with a light load. With very light (small) throttle openings and at a constant speed (I've performed this test in the first three gears) you can definitely hear the motor gurgling, that I am convinced is due to an excessively lean condition. This is annoying because when I ride around town I am not twisting the throttle back any further than I need to (and I am being easy because I am breaking it in), and you can feel and hear the leanness. However, if I just twist the throttle back and accelerate briskly it cleans-up and runs very well. But, this is an 1100cc motor, and (from my experience) you shouldn't have to twist the throttle back this far riding around town - besides, you're very quickly going way past the speed limit around town. I can ride my fuel-injected VFR800 around town all day and not experience the same "lean" sensation or torque drop-off. My VFR injects smoothly and evenly at all RPM levels, from idle up to red line. Additionally, when I do twist the throttle on the CB1100 and accelerate briskly and shift at about 3300 - 3400 RPM, I feel a definite torque drop when the RPM drops below 3000 when I engage the next gear. I expected a smooth and linear torque curve, not one that drops off below 3000 RPM. I am going to meet with my mechanic friend tonight and see what he says after a test ride (his personal commuter is a Yamaha FZ1000).
Again, I thank all of you for your feedback and I will update you soon.
Again, I thank all of you for your feedback and I will update you soon.
