Removing 2ndary Butterflies YES or NO

[SiMpLyMoDiFiEd]

Do you recommend removing the 2ndary butterflies from the throttle bodies? why or why not?

[TireKiller]

What bike?

[SiMpLyMoDiFiEd]

02 750 with motor mods

[john @ks]

if i was u i wouldnt do that b\c it dosent realy gain anything from it. as it makes it a lil harder to ride. they are there to make sure u dont bog it down.

[SiMpLyMoDiFiEd]

if i was u i wouldnt do that b\c it dosent realy gain anything from it. as it makes it a lil harder to ride. they are there to make sure u dont bog it down.

all you have to do is retune it! I was told it was just another emissions thing!

[B.S. Motorsports]

In the import days we took them out of gsr's but im not really sure when it comes down to bikes.

[Patrick]

No, they are not an emissions thing. They are designed to help keep intake velocity high at low rpm / large throttle openings.
They can be removed, but if it is not a bike built specifically for the drag strip I wouldn't recommend it. The gains are negligible, less than 1/2 a h.p., and you will lose some throttle response at lower RPM settings, even with remapping.
Not worth it IMO.



Patrick

[SiMpLyMoDiFiEd]

No, they are not an emissions thing. They are designed to help keep intake velocity high at low rpm / large throttle openings.
They can be removed, but if it is not a bike built specifically for the drag strip I wouldn't recommend it. The gains are negligible, less than 1/2 a h.p., and you will lose some throttle response at lower RPM settings, even with remapping.
Not worth it IMO.



Patrick

ok ok understand now what would cause a weak throttle response now? my bike feels like it bogs until 5k RPMs then about throws you off if you arent ready when the powerband kicks in!