bs34 jetting help

hi,
does anyone have any reccomendations for jetting for my bike? mods in signature....any help would be appreciated.........
i also need to get pods and have seen numbers from 40 mm-54 mm.....thats a big range....whats the dilly-o?..............i d like to get a jump on ordering stuff on mon ........keith

you need 54mm for the bs34
k&n from z1e are 150 bucks
however cheap ones are a 3rd the price
and they are not as good.
cant help on jetting this is what im running as a guide.

Gpz1100b1 motor 1170 cc, 3mm over size
custom racing exhaust,
Mikuni bs34mm carbs by WG Carbs,
1 and a half turns out.
Main Jet #142.5
Pilot Jet #40,
K and n air filters, (pods)

im not a mechanic im a carpenter!

kano wrote:

you need 54mm for the bs34
k&n from z1e are 150 bucks
however cheap ones are a 3rd the price
and they are not as good.
cant help on jetting this is what im running as a guide.

Gpz1100b1 motor 1170 cc, 3mm over size
custom racing exhaust,
Mikuni bs34mm carbs by WG Carbs,
1 and a half turns out.
Main Jet #142.5
Pilot Jet #40,
K and n air filters, (pods)

thank you very much......i dont want to spend that much for pods, but ya get what ya pay for...i am going to call z-1 monday....the guy i bought the carbs from said a 135 main should work for me.......sounds like it s in the right 'hood...i have some experience with vm series, bs are all new to me.....thanks again....!!!!

no probs ride safe!

keith1 wrote:

i am going to call z-1 Monday....

here is the part number for z1e.

TU40-0333
Air Filters (4)
K&N RU-0984 Individual 54mm High-Flow $153.14

I am just going to guess at a starting point of 140 and 40. I would see what wiredgeorge has to say.

You will have to do more than just jetting if you run pods. The intake ports will not develop enough vacuum to lift the slides all the way. I had the same problem on my GPz1100 when I installed the same carbs and pod filters. I have been using Emgo Pods for some years and they are a very good value. Part #12-55754, and you can get them at www.bikebandit.com They are quite inexpensive. The carbs will have to be modified to work without the airbox though. I have gotten quite good with these carbs over the past couple of years and like them very much. If one knows what they are doing with them you can get some hot performance for the street without the sacrifice of much gas millage.

Just looked them up on bikebandit and they are $9.45 ea and if you are an AMA member they give you a discount.

otakar wrote:

You will have to do more than just jetting if you run pods. The intake ports will not develop enough vacuum to lift the slides all the way. I had the same problem on my GPz1100 when I installed the same carbs and pod filters. I have been using Emgo Pods for some years and they are a very good value. Part #12-55754, and you can get them at www.bikebandit.com They are quite inexpensive. The carbs will have to be modified to work without the airbox though. I have gotten quite good with these carbs over the past couple of years and like them very much. If one knows what they are doing with them you can get some hot performance for the street without the sacrifice of much gas millage.

i read wg s write up on installing them....what mods need to be done to make the slides open all the way?.....thanks

Yea what Keith said Im running the same set up with BS34s and the k&n pods.

Guys
Email me at otto@condormodels.com

The mods can be quite tricky dependent on the modifications to the engine. With a stock engine it's not bad but with aftermaket pistons, cams, and so on it can be a challenge. Unfortunately, once the mods are made it is very hard to reverse them.