Carb options for my 810 build

So, its been brought to my attention numerous times now that BS34's are too big for my engine to perform well on the street. Is there anything short of CR29's that I should consider? I really dont have the extra cash for CR's right now, and I do already have a set of BS34's. Should I just run them for a year until I can afford CR's? Or is there something else?

Run Em.I've seen many 650 running BS34s.. With the correct jetting I don.t understand Why its too big ??

Those should not be too big. With the proper jetting they should perform excellent.

cant go wrong with a good set of38 flatslides and 435 cams! :laugh:

PLUMMEN wrote:

cant go wrong with a good set of38 flatslides and 435 cams! :laugh:

:woohoo: :side: :woohoo:

Where can you get stacks with screens for BS34's? Need some long-ish stacks so I don't lose my bottom end.

Thats what I would like to know..

nichecycles has some that are not screened but they are 1mm larger so you could put screens under them

K&N Pod filters have stacks built into them. BS34s came on the stock KZ750 they should be very good for an 810 build. I run them on a 1150 motor and I love them. The bigest trick are the needles. You have to have the right ons. I do have some needles for that application. Also they must be modified for the right Vacuum to the top of the diaphragms if you are planning on running Pods especially if you plan on running just stacks. Otherwise they will not respond fast enough. I had to mod mine and I have a motor that has tremendous vacuum. I believe that SUDCO also has stacks.

Yes I checked and SUDCO has them that will fit that carb they are 56mm and # 005-269B (anodized blue) or # 005-269C (chrome) they are about $45 each. my catalog price list is a couple of years old.

Do you have the specs for the needles and drilling out the vacuum connection?

BS34s work fine,got mine off a gpz750 I'd like to save a few bucks to grab some needles to see the difference, but she is quick. They will work fine.140 40 jets