bs34's junk?

larrycavan wrote:

otakar wrote:

This is my GPz1150 with .420 lift cams and ported head. she moves like a bat-auta-hell. Will the BS34s compare to the top notch smooth-bores for drag strip use? NO. But they are one of the best street carbs around.

You don't get it either... well you sort of get it:) It's not about the drag strip at all...PERIOD

It's exactly about mid range punch. The PUNCH you want when you roll that throttle on and the bike comes on the cam. That's exactly where BS34's will rear their ugly teeth where as a good rack of smooth bores will give you a woody.. :laugh:

I'll wager 95% of the members here have never ridden a seriously fast street bike. If they did, this stupid topic would't keep coming up :woohoo:

my little 1327 ltd/z1 clone ran a best of 6.18 at 113 and change with no wheelie bar at the local 1/8 last summer with an ancient set of 33s and then managed a 500 mile round trip through ne/kansas a week later with just a simple rear wheel/sprocket swap.
had Larry c on the phone that night at the track listening to a harley v-rod running a 5.8 in background! :laugh:

PLUMMEN wrote:

larrycavan wrote:

otakar wrote:

This is my GPz1150 with .420 lift cams and ported head. she moves like a bat-auta-hell. Will the BS34s compare to the top notch smooth-bores for drag strip use? NO. But they are one of the best street carbs around.

You don't get it either... well you sort of get it:) It's not about the drag strip at all...PERIOD

It's exactly about mid range punch. The PUNCH you want when you roll that throttle on and the bike comes on the cam. That's exactly where BS34's will rear their ugly teeth where as a good rack of smooth bores will give you a woody.. :laugh:

I'll wager 95% of the members here have never ridden a seriously fast street bike. If they did, this stupid topic would't keep coming up :woohoo:

my little 1327 ltd/z1 clone ran a best of 6.18 at 113 and change with no wheelie bar at the local 1/8 last summer with an ancient set of 33s and then managed a 500 mile round trip through ne/kansas a week later with just a simple rear wheel/sprocket swap.
had Larry c on the phone that night at the track listening to a harley v-rod running a 5.8 in background! :laugh:

I remember that night. It was the night of the same day that Walmart was out of those finishing nails you make into BS34 needles :laugh:

Can you imagine if you could have put the BS34's on it instead of those junk smooth bore mikuni's :laugh: ?

It might have dipped into the 5's :woohoo:

i was having enough traction issues that night,the mid range bog of the 34s might of helped me get it together long enough to hook it up better! :woohoo:
all i rememeber thinking was im gonna die and what would larry do? so i kept into it! :woohoo:
i found those finishing nails at londeen hardware in chapman ks if anybody needs to supertune their 34s! :laugh:

Me-me-me.Please send me a generous supply.I wanna be like you and Larry and have a decent set of carbs.Lol.bj

I gotta serious (well as serious as I can get) question.This mid-range bog everybody refers to.when does it come on?when I had my bike dynoed,it pulled hard right up till the rev limiter shut it off at 9500.I didnt see any flat spots in the graph,nor have I experienced any on the street.Does it only happen at WOT at a certain place in the power curve or certain rpm range or what?Thanks.bj

hocbj23 wrote:

I gotta serious (well as serious as I can get) question.This mid-range bog everybody refers to.when does it come on?when I had my bike dynoed,it pulled hard right up till the rev limiter shut it off at 9500.I didnt see any flat spots in the graph,nor have I experienced any on the street.Does it only happen at WOT at a certain place in the power curve or certain rpm range or what?Thanks.bj

Generally happens when it's cammed BJ. Those carbs struggle when the motor comes on the cam.

cv carbs/vacuam,built motor very little vacuam :laugh:

Old Man Rock wrote:

How many sets do you want...? :blink:

.15 a lb,thats a lot of die cast!

Ok so I got to wonder if any body uses these kits on any of the street bikes cabs for tuning, or is it only a waste of time? Some guy's seemed to like them on their VM's in a sled. Cheap and there still selling them, so any body?

Here's the description:
* Converts a regular VM-type Mikuni carb to a high-performance power-jet-type carb
* Splits the functions of the main jet for smoother transitions from half to full throttle
* Installation instructions included
* Includes 80, 100 and 120 power jets
* Requires #36 and 5/32in drill bits, a 6-32 tap, flat file and hand tools for installation

:laugh:

Motor Head wrote:

Ok so I got to wonder if any body uses these kits on any of the street bikes cabs for tuning, or is it only a waste of time? Some guy's seemed to like them on their VM's in a sled. Cheap and there still selling them, so any body?

Here's the description:
* Converts a regular VM-type Mikuni carb to a high-performance power-jet-type carb
* Splits the functions of the main jet for smoother transitions from half to full throttle
* Installation instructions included
* Includes 80, 100 and 120 power jets
* Requires #36 and 5/32in drill bits, a 6-32 tap, flat file and hand tools for installation

Power jet carbs were used primarily in 2 strokes. In a way, they can suffer the same fuel delivery dilema.

Those were later remodeled and introduced as "dial a jet" Anybody remember those?

hocbj23 wrote:

Me-me-me.Please send me a generous supply.I wanna be like you and Larry and have a decent set of carbs.Lol.bj

BJ... you get first shot at this. I'm building a 1075 Motor. The owner bought new RS34s. I do believe he's interested in selling the stock 34mm CV Mikunis. Holler if you're interested.

They out to be worth $150.