Hesitation

[scratch]

Well, it happened again, very similar to before: http://gstwins.com/forum/viewtopic.php?t=11798

This time, last night, same road, same direction and wind, but I already had the fuel selector in PRI and it began to hesitate at 5500rpms, slid my foot back...and, no hesitation again!

Now the wind is coming from the right side of the road, both times. The first time I slid back both feet, then I moved the left foot forward, it hesitated; moved it back, stopped. Moved the right foot forward, no hesitation! Odd that it would be the leeward side that would allow the hesitation!

And, then this morning (it was raining), different road, got her up to speed (65mph @ 5500rpms), she began to hesitate, slid my feet back, again, no more hesitation.

[pandy]

It's supposed to be nasty stormy for the commute home today; you be careful out there!

[Roadstergal]

You sure you aren't doing something else by scooting your feet back?

[Badger]

I wonder if it's possible that the way air is getting directed around the petcock with your leg forward is lowering the pressure outside the valve and neutrallizing the vacuum. *shrug*  Sounds wierd.

[scratch]

Positive. Steady throttle, lookin' straight ahead (I thought once that I looked down, which means I would have rolled off the throttle).

[RVertigo]

That's one of the weirdest causes of hesitation I've heard...

Loose wire?  Vacuum hose?  Your pegs are really a gas pedal?

[scratch]

I still believe it is a loss of atmospheric pressure to the floatbowls due to the crosswind drawing the air out of the vent tube to the floatbowls.

[NightRyder]

I still believe it is a loss of atmospheric pressure to the floatbowls due to the crosswind drawing the air out of the vent tube to the floatbowls.

+1 sounds like it to me too. I tried that when I was working on my bike. Only I think it's too much pressure. Although maybe either way does havok on the system. (I didn't think sucking on the tube was a good idea)

ME: "Um, damn thing, come down in revs.." <blow into vent tube> "Sweet! now I just need to blow into this all day...um, screw that"

How this relates: If wind was hitting that tube just right, It could kill your engine. A bit less force and it would cause it to almost die, stumble, and so forth.  

[scratch]

That's one of the weirdest causes of hesitation I've heard...

Loose wire?  Vacuum hose?  Your pegs are really a gas pedal?

This is a common problem with certain models. My freind's SRX600 used to get it alot (along the same road, no less), and the members of the GT Hawk mention a problem called the "2 (or 4) o'clock hesitation", because if the wind hit them from the 2 (or 4) o'clock direction, they would loose atmospheric pressure to the floatbowls which doesn't allow the fuel to be drawn into the venturi.