Topic: RE: 71 CB750 Source for float needle and solid air screw

[chewbacca5000]

Looking for new float needles and solid air screws.  If anyone can point me in the right direction it would be appreciated.

[flybox1]

http://4into1.com/idle-air-mixture-screw-honda-cb750k-1969-1971/

double check the part # on this one.... http://4into1.com/genuine-honda-2-5-float-needle-valve-assembly-16011-375-004-cb100-cb125-cb72-cb77-cb450-cl450-cb750k/

[chewbacca5000]

http://4into1.com/idle-air-mixture-screw-honda-cb750k-1969-1971/

double check the part # on this one.... http://4into1.com/genuine-honda-2-5-float-needle-valve-assembly-16011-375-004-cb100-cb125-cb72-cb77-cb450-cl450-cb750k/

Thanks that is a big help!  No ideal what difference the numbers make on the seat.  Stock is 2.0 this one is 2.5.  They have 4 kits for $43 bucks https://store-jcd9tbp.mybigcommerce.com/carburetor-rebuild-kits-complete-set-honda-cb750k-1972-1976/

I hate buying kits since I am nearly always disappointed, but others seem to like 4into1 so I might give them a try.

This is really what I want, but says out of stock.

http://4into1.com/replica-keihin-2-0-float-needle-valve-assembly-16011-375-004/

[flybox1]

yeah...i saw the 2.0's were out.
what does that # indicate?  float valve ID?

[chewbacca5000]

yeah...i saw the 2.0's were out.
what does that # indicate?  float valve ID?

ID is my guess.

[dave500]

just solder up your holey airscrews?

with holes you can only enrichen so far even when the needle bottoms out,you might need a little more?
your results may vary?

[chewbacca5000]

Thanks Dave.  I tried that once but did not have the best luck maybe I will try it again.

[dusterdude]

Are these the air/fuel mixture screws?

[chewbacca5000]

Are these the air/fuel mixture screws?

Yes.  The solid ones give much more control over idle IMO.  I like to be able to richen up a bit if I want like Dave is saying.

[dusterdude]

If i dont forget,ill look at my spare rack and see what i have

[dave500]

easy to solder them,be sure its well clean and bright inside the holes,apply the solder then sand it down smooth,all the service kits these days have the hole type I think?