Pardon my ignorance. Carb springs question:

[doubletee]

I'm not the most mechanically inclined.     

I have seen several suggest replacement of the normal carb springs with IS carb springs. First, what function do carb springs provide (throttle return?), and second, how are the IS springs different from the standard/tourer springs?

[Ricky-D]

I'm not the most mechanically inclined.     

I have seen several suggest replacement of the normal carb springs with IS carb springs. First, what function do carb springs provide (throttle return?), and second, how are the IS springs different from the standard/tourer springs?

Generally thought of as "softer" springs allowing the vacuum operated slides to open quicker, hopefully resulting in faster motor response to throttle beatings.

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[six2go #152]

Tony: I did that mod several years ago. It works. When ya "wack the throttle", you go forward.......Right now!

[fudgie]

Tony: I did that mod several years ago. It works. When ya "wack the throttle", you go forward.......Right now!

+1 

[doubletee]

Okay. So, now I have to ask, how hard is it to change out these springs? Two beer job? Six beer job?     

[Bandit]

2 beers and 1 handed,but well worth the Hour it will take.If I can do it any one can.    Bandit.

[SgtBunny]

If you need a set of I/S springs let me know.  I bought a set and come to find out do not need them.

[fudgie]

1 beer per carb Tony!  Nah its simple. Take your little carb tops off, pull out the little black diaphram thing-carefull not to tear it, pull out the old spring, replaced in reverse order. Less then a hour.

[doubletee]

1 beer per carb Tony!  Nah its simple. Take your little carb tops off, pull out the little black diaphram thing-carefull not to tear it, pull out the old spring, replaced in reverse order. Less then a hour.

Thanks, Brian! I think even I can do that much.   

[SgtBunny]

While you are changing your springs, are you going to go ahead and change your jets...a little more involved but if so, let me know.  I have a set of 38's I am not going to use now.

[doubletee]

While you are changing your springs, are you going to go ahead and change your jets...a little more involved but if so, let me know.  I have a set of 38's I am not going to use now.

No, I don't plan to mess with the jets.

[doubletee]

New springs installed (about a 30-minute job). Took her for a test ride. I can't say I notice a huge improvement, but certainly no worse. Might be a touch quicker. Probably the easiest mod I've done, though.   

Thanks for the instructions and help!

SgtBunny - pleasure doing business with you!