What are some good carbs for a street/strip kz1000

Hi, I ask a lot of questions on KZR and get a lot of help from all of you experienced people out there, I have another one.

I want to (eventually) build up my 1982 1000LTD into a musclebike that I take to the drag strip a few times a summer, but still be civilized enough for pump gas and some rural town riding (not traffic jams). I plan on starting with exhaust, pods, a rejet and better ignition and eventually a bore out.

My bike has BS34 Mikuni's on it now (I think) are these decent for the application I mentioned? Would some other carbs be better? What does "flat slides" refer to? what is smoothbores? I hear a lot of jargon and I don't know what it all means

again, thanks for helping out a newb

I like the BS34's,they'll work fine.
They're just a mother @#$% to tune!
LOL!

Goodluck.



PS. If you go with pods you WILL HAVE TO change out the needles and have the carb air jets/and pods modified for those carbs to work properly. TRUST ME!

a flat slide carb has has rectangular flat slides a smooth bore bore carb has round slides simalar to your bs 34's only they are mechanical instead of vacuam operated and the venturi of the carb is bored straight both of these types of carbs have less restriction then your 34's

so the 34's are more difficult to tune properly, and the flat slides and smoothbores (what size, I have heard 29 smoothbores...) are less restrictive. What, if anything do the 34's do well? When I do end up putting less restrictive breathing on the bike, which of these other types of carbs will be more suitable? I would rather spend my time riding then tuning finnicky carbs.

unless youre doing something really radical, or exotic to your engine, the bs34s will be fine.

BS34 are a good, reliable carb. Spend you money elsewhere.

Don't waste your time or piss your money away on ancient junk. NEW, TRUE PERFORMANCE CARBS ROCK! They'll kick ass all over BS34's. Used 29 Mikuni's bring dam near the cost of new Keihin CRS smoothbores.

Kawasaki used them on their Superbikes in the 80's for a reason! Think about it..

BS34's are OK for a stock motor, low budget arrangement. Ride two identical bikes back to back, one with CV carbs and one with properly jetted performance carbs. You'll never look back....

Keihin CRS33 for J Motors, especially if you're going to buld the motor over time - Dynoman.net, Carb Parts Warehouse, Sudco, APE ....all those places can get them.

JMO

Larry C

Carbs are ancient Junk, new or used. Lets step it up, alittle. Look at the size of these bad boys!

larrycavan wrote:

Don't waste your time or piss your money away on ancient junk. NEW, TRUE PERFORMANCE CARBS ROCK! They'll kick ass all over BS34's. Used 29 Mikuni's bring dam near the cost of new Keihin CRS smoothbores.

Kawasaki used them on their Superbikes in the 80's for a reason! Think about it..

BS34's are OK for a stock motor, low budget arrangement. Ride two identical bikes back to back, one with CV carbs and one with properly jetted performance carbs. You'll never look back....

Keihin CRS33 for J Motors, especially if you're going to buld the motor over time - Dynoman.net, Carb Parts Warehouse, Sudco, APE ....all those places can get them.

JMO

Larry C

+1 on Larrys comment. I´ve had BS34´s earlier and changed them to Mikuni flatslides a couple of years ago. A huge difference, BS34´s are soft and "civilized" but they just don´have the crunt and throttle response.

Larry: Why do you recommend Keihins not Mikunis like RS34 or TMR´s? Price vs. quality? Easy to jet right?

Z1109R Fin wrote:

larrycavan wrote:

Don't waste your time or piss your money away on ancient junk. NEW, TRUE PERFORMANCE CARBS ROCK! They'll kick ass all over BS34's. Used 29 Mikuni's bring dam near the cost of new Keihin CRS smoothbores.

Kawasaki used them on their Superbikes in the 80's for a reason! Think about it..

BS34's are OK for a stock motor, low budget arrangement. Ride two identical bikes back to back, one with CV carbs and one with properly jetted performance carbs. You'll never look back....

Keihin CRS33 for J Motors, especially if you're going to buld the motor over time - Dynoman.net, Carb Parts Warehouse, Sudco, APE ....all those places can get them.

JMO

Larry C

+1 on Larrys comment. I´ve had BS34´s earlier and changed them to Mikuni flatslides a couple of years ago. A huge difference, BS34´s are soft and "civilized" but they just don´have the crunt and throttle response.

Larry: Why do you recommend Keihins not Mikunis like RS34 or TMR´s? Price vs. quality? Easy to jet right?

Personal experience has proven to me time and again that Keihins Smoothbores are the superior carburetor. RS34 Mikuni's are a pretty good carb but if buying new, I'd take the Keihins

Thx guys. I won't be buying new, I will likely find a used set from oldkawman or something like that. Assuming all things are equal are the crs33 and rs34's pretty comparable carbs?

I am going to stick to the carbs I have, once I start tuning the engine I will work with the bs34's until I needsomething better. I am not going to be doing anything crazy with the bike, just a strip/street bike. I don't want to spend more than a few thousand on it over the course of a few years. If I do end up overboring the engine I would consider new carbs then, but I think that would be it as far as mods would go. Thanks for the help guys