BS34SS Needle Jets

[Anonymous]

After much experimentation and mucking around the final result is that my needle jets (#3 cyclinder in particular) are worn out.

My local dealer says that there are none in the country (NZ) and not sure what they are worth. I am waiting to hear back from him regarding availability ex Japan. Bikebandit says that they are not available, which leaves a bit of a problem (although I haven't finished researching availability).

So the question is do the Dynojet of K&N kits include the needle jets? It doesn't appear so but I just thought I would check.

Thanks
Anthony

[robinjo]

Anthony what is the number stamped on the needles? It also should be in your manual. I may be able to help if all else fails...

[Anonymous]

Re: BS34SS Needle Jets

After much experimentation and mucking around the final result is that my needle jets (#3 cyclinder in particular) are worn out.

My local dealer says that there are none in the country (NZ) and not sure what they are worth. I am waiting to hear back from him regarding availability ex Japan. Bikebandit says that they are not available, which leaves a bit of a problem (although I haven't finished researching availability).

So the question is do the Dynojet of K&N kits include the needle jets? It doesn't appear so but I just thought I would check.

Thanks
Anthony

hey anthony;

you might try this site

www.partsfish@powersportspro.com

they carry a lot of carb stuff and i think they have your needles for the 34s
give em a try
have a good one.

[deano]

Anthony i brought some K&L kits from www.siriusconinc.com (no problems with freight to NZ) they did not contain the needle jets. They also supply keyster kits which i am sure do come with needle jets. They should be alot cheeper than the $80-00 NZ that my local suzuki dealer wanted for 1 needle and seat. The 4 k&L kits cost me $123-00 USD freight inc.

Deano

[Billy Ricks]

Try Sudco, they have a website and are great to deal with. Good prices too.

[Anonymous]

The needle jets according to my manual state 'X-1' (have not pulled needle jet to confirm), which is not listed at www.sudco.com nor it seems is there a kit at www.siriusconinc.com . Have emailed both so we'll see what happens. Still browsing www.partsfish@powersportspro.com but not looking promisng-will send them an email.

I assume it would be a good idea to replace the jet needle at the same time as replacing the needle jets?

Cheers

[KEITH KRAUSE]

What is #3 carb doing, running rich just off idle to 3/4 throttle? Why do you believe the needle jet is worn?

[Anonymous]

Number 3 is running way too rich (fouling) from just off idle to 3/4 throttle, float height is fine, float itself is good, needle valve is fine and o-ring is new. All 4 carbs set up exactly the same plugs 1,2 and 4 are good. Have plenty of spark (new Dyna ignition, new coils, leads, caps, plugs). Very reputable mechanic had no hesitation is saying needle jet, neither have others.

[KEITH KRAUSE]

Number 3 is running way too rich (fouling) from just off idle to 3/4 throttle, float height is fine, float itself is good, needle valve is fine and o-ring is new. All 4 carbs set up exactly the same plugs 1,2 and 4 are good. Have plenty of spark (new Dyna ignition, new coils, leads, caps, plugs). Very reputable mechanic had no hesitation is saying needle jet, neither have others.

I'm not contesting what your mechanic says but since you're having a hard time finding needle jets, I would first do a test. Have you tried swapping the needle jet #3 with #4 and see if the problem follows?
Another VERY common thing is to vacuum sinc the carbs incorrectly. Just a 2cm higher level than the others will result in a rich condition at these throttle positions. Did you see the bike get synched? I've seen many people waste time blaming the carbs, when it was just a synching problem. Another richness problem at #3 carb can be a leaking petcock allowing fuel into the vacuum line.

[SqDancerLynn1]

Vacuum is from the #2 carb with the BS series
Check with http://www.motorcycle carbs.com I think his name is Rob

[KEITH KRAUSE]

Thanks Lynn for the vacuum correction. Slowly but surely I'm learning more about the BS CV carbs.

[robinjo]

The needle jets according to my manual state 'X-1' (have not pulled needle jet to confirm), which is not listed at www.sudco.com nor it seems is there a kit at www.siriusconinc.com . Have emailed both so we'll see what happens. Still browsing www.partsfish@powersportspro.com but not looking promisng-will send them an email.

I assume it would be a good idea to replace the jet needle at the same time as replacing the needle jets?

Cheers

That's too bad, I have a extra set of carbs from a '84 ESD and they have the X-2 needle jets wich are different, sorry.

[Billy Ricks]

Swapping the jets between two different carbs is a great idea to confirm the diagnosis. I'd email Sudco. I've dealt with them before and they are good people. They don't list your size, but they have obvious connections at Mikuni. This place, http://www.carbparts.com/, might be able to help. They don't list them but I've gotten things from them before that weren't listed. There is someone that participates here from time to time that is able to reproduce some carb parts. I think it might be Robert Barr.

[SqDancerLynn1]

Robert has the O rings for the BS series carbs
repost Rob at http://www.motorcyclecarbs.com has made some of the parts and offers a rebuilding service so check with him

[Anonymous]

Well, needle jets for the 1100ex are no longer available according to my local Suzuki dealer. I find that quite amazing.

Have had email replies from siriusconinc.com, Sudco, and motorcyclecarbs.com, all unable to help. Just waiting to hear back from partsfish@powersportspro.com but I don't like my chances.

So there are there are a few options (2nd hand needle jet-maybe, replacement carbs, or maybe get a machine shop to recondition the jet-if possible) but in all all a might pain in the rear end.