Bandit Alley

MODEL SPECIFIC => SUZUKI BANDIT 250 & 400 => Topic started by: wyntrblue on September 27, 2005, 07:46:48 PM

Title: needles jets and carbs oh my!
Post by: wyntrblue on September 27, 2005, 07:46:48 PM
hiya peoples...


my b4 is a little poorly :( and i have been told by my garage that it prob needs new needles and jets in the carbs... ok fair enough so the all important questions is.....


1 where in the uk can i get those parts?
2 are there any parts im gonna need to get for when i change them?

thanks
Title: needles jets and carbs oh my!
Post by: PitterB4 on September 27, 2005, 09:24:35 PM
You might be on a scavenger hunt, my friend.  Word is Suz/Mikuni stopped making the jets.  That was reported on one of these threads, anyway.
Title: needles jets and carbs oh my!
Post by: Red01 on September 27, 2005, 10:54:31 PM
IIRC, the Factory-Pro jet kits are still available for the B4, so your solution just might be to rejet it for more power to cure it.

That is if the Factory-Pro kit is compatible with your bike.
Which market model is your B4?
Title: needles jets and carbs oh my!
Post by: interfuse on September 28, 2005, 12:10:39 AM
What are the symptoms? Depending on what's wrong a jet kit might help.
Dynojet and Factorypro both still sell bandit 400 kits. However, the kits only come with main jets, jet needles, and springs. If you need a replacement needle jet you're on your own. Suzuki has them listed as discontinued.

Here's the factory pro website
www.factorypro.com

Link showing needle damage
http://factorypro.com/tech/needle1.html

Link showing the dreaded needle jet damage
http://factorypro.com/products/needle_jet_Mikuni.html

While you're at it -- no carb rebuild is complete without changing all of the o-rings. Depending on what's wrong with your bike this might be the only thing required... last I checked you can order all the o-rings from Suzuki (although you'll pay an arm and a leg, you are guarenteed that the o-rings will fit and hold up to petrol).
Title: needles jets and carbs oh my!
Post by: interfuse on September 28, 2005, 12:21:30 AM
Quote from: "Red01"
That is if the Factory-Pro kit is compatible with your bike.
Which market model is your B4?


I used the Factorypro kit with a Canadian model bike (33mm carbs). It took some tuning, but the Factorypro settings for the US model bike were pretty close. I found it a bit too rich in the bottom end, which I corrected by modding my airbox and then increasing the MJ size...

Last weekend I pulled my plugs, compaired them to the plug chart and to my amazement I had the perfect plug. I wish my camera had batteries!
Title: needles jets and carbs oh my!
Post by: Maniac on September 28, 2005, 12:32:12 AM
Quote from: "interfuse"
Last weekend I pulled my plugs, compaired them to the plug chart and to my amazement I had the perfect plug.


What?!  :shock:

I don't believe it! The Perfect Plug is just a myth, a legend told by old mechanics to keep the younger ones in line! It's like Santa Claus or the Easter Bunny, it doesn't actually exist!
Title: needles jets and carbs oh my!
Post by: Red01 on September 28, 2005, 12:44:09 AM
It's no myth, I've got one in my toolbox that came out of a Pratt & Whitney R-2800 18 cylinder radial - too bad the plug's life had been cut short by a sucked valve.

:btw: lots of FI engines have 'em.
Title: needles jets and carbs oh my!
Post by: gsxr400 racer on September 28, 2005, 02:12:46 AM
:banana: I hve them to 4 of them I just change mine for shits and giggles but i have race carbs  :stickpoke:
Title: needles jets and carbs oh my!
Post by: gsxr400 racer on September 28, 2005, 02:34:28 AM
Quote from: "PitterB4"
You might be on a scavenger hunt, my friend.  Word is Suz/Mikuni stopped making the jets.  That was reported on one of these threads, anyway.


Didnt i just get those for ya not to long ago ROB?
Title: needles jets and carbs oh my!
Post by: wyntrblue on September 28, 2005, 06:54:53 AM
Quote from: "Red01"
.
Which market model is your B4?


its a gsf400vp

symptoms include....

running rough at idle
idle having to be set really high
the bike just sounds like its running rough...

errrm


think thats all of them....lol
Title: needles jets and carbs oh my!
Post by: PitterB4 on September 28, 2005, 08:43:32 AM
Quote from: "gsxr400 racer"
Quote from: "PitterB4"
You might be on a scavenger hunt, my friend.  Word is Suz/Mikuni stopped making the jets.  That was reported on one of these threads, anyway.


Didnt i just get those for ya not to long ago ROB?


Yup!  Then someone posted that they were all gone.  I figgered I got the last ones!  Someone has to get the last ones, right???   :wink:
Title: needles jets and carbs oh my!
Post by: gsxr400 racer on September 28, 2005, 09:48:35 AM
well lucky you , but i can check my sorce!  :beers:
Title: needles jets and carbs oh my!
Post by: Herr Tod on September 28, 2005, 11:59:46 AM
Have you checked that it is running on all 4 cylinders?
Title: needles jets and carbs oh my!
Post by: jcmjrt on September 28, 2005, 12:05:11 PM
Jay,
I'm interested in new jets too. Please check your source for me too. Thanks.
Title: needles jets and carbs oh my!
Post by: wyntrblue on September 28, 2005, 12:14:13 PM
yup its running on all 4.
Title: needles jets and carbs oh my!
Post by: interfuse on September 28, 2005, 01:08:14 PM
Quote from: "wyntrblue"
its a gsf400vp

symptoms include....

running rough at idle
idle having to be set really high
the bike just sounds like its running rough...

errrm


First thing I'd check is that the bike running on all 4. Start the bike up and let it idle for a few minutes. Then carefully/quickly touch each of the header pipes and make sure they're all getting hot.

If all the pipes are getting hot. I'd try doing a carb sync. If your tach needle bounces around at idle chances are your bike will run a lot smoother after a carb sync.

If the above suguestions don't solve your woes, then you are looking at opening up the carb and seeing what's worn... if you don't feel comfortable doing that, I'd recommend taking it to a shop who knows what they're doing.
Title: needles jets and carbs oh my!
Post by: Zhi on September 29, 2005, 12:08:18 AM
Hey Jay, definately if your source is able to come up with the needle jets I would be interested.
Title: needles jets and carbs oh my!
Post by: gsxr400 racer on September 30, 2005, 06:17:08 PM
OKAY I GOT 12 OF THESE ORDERED THATS 3 SETS pM ME WITH PHONE NUMBER SO I CAN GET AHOLD OF YOU WHEN THEY COME IN AND ILL CALL FROM THE SHOP AND GET A CREDIT CARD NUMBER FROM YA! CHEERS 1 SET STILL NOT SPOKEN FOR ! IF ANYONE NEEDS THEM MANIC!
Title: needles jets and carbs oh my!
Post by: gsxr400 racer on September 30, 2005, 06:53:04 PM
76.00 FOR 4 NEEDLE JETS PLUS POSTAGE! free postage in the US
Title: needles jets and carbs oh my!
Post by: Zhi on September 30, 2005, 11:14:42 PM
Ah cool :)
Title: needles jets and carbs oh my!
Post by: interfuse on September 30, 2005, 11:36:25 PM
Jay, can you order me a set of Needles Jets size P-0?
Title: needles jets and carbs oh my!
Post by: gsxr400 racer on October 01, 2005, 01:49:29 PM
Pm me interfuse, so i mark ya down for them they are ordered ,
Zhi , has one set and you got the other that leaves one more set unless i let some one out!
Title: needles jets and carbs oh my!
Post by: jcmjrt on October 01, 2005, 06:51:39 PM
It's nice to have you order them Jay but they are still available through the dealer or online.

The part is available at www.ronayers.com for $17.75 each
Suzuki P/N for model P is 09494-00792
Suzuki P/N for Model M/N is 09494-00710
Title: needles jets and carbs oh my!
Post by: gsxr400 racer on October 01, 2005, 07:46:26 PM
Okay Fooker 76.00 shipped in the US :stickpoke:
Title: needles jets and carbs oh my!
Post by: jcmjrt on October 01, 2005, 09:49:58 PM
Hey Jay,
I'm not trying to step on your sales as that's a very good shipped price. It just seems that people (I know that I did) think that these parts are no longer obtanium from the regular dealer/online (the whole needle jet, jet needle, needle, jet, jet, needle thing). They are. The part that is no longer obtainium from Suzuki is obtainium from Factory Pro - and adjustable at that :).
I'm trying to make up my mind what parts I want to lay in for the future and these are being considered.
R/
JC
Title: needles jets and carbs oh my!
Post by: gsxr400 racer on October 02, 2005, 01:19:29 AM
Just  :stickpoke:  fun with ya man! :beers:
Title: needles jets and carbs oh my!
Post by: Zhi on October 02, 2005, 05:40:34 PM
:lol:
Hey jcmjrt, which part are you referring to as unobtanium from Suzuki?
Since you mentioned adjustable, I am guessing that it is the needles that are no longer available from Suzuki?Or am I confused?

Anyways, $76.00 shipped is definately a good price. :)
Title: needles jets and carbs oh my!
Post by: jcmjrt on October 02, 2005, 06:02:06 PM
It's least likely to cause confusion if you refer to the parts fiche (which is available as a sticky up top here) in the 3 page carb section. The unobtainium from Suzuki parts that I know about are #12 and #28 California Only. The other two types of #28 for Model M/N and Model P are available. A substitute for #12 is available from Factory Pro - the adjustable needle in their rejet kit.
Title: needles jets and carbs oh my!
Post by: gsxr400 racer on October 03, 2005, 09:18:52 AM
Needle jets (emulsion tubes) the jet needle runs thru this.
jet needle (needle) this is usually adjustable and what comes in a jet kit
slow jet (pilot jet) this is the jet that controls from 1/8 throttle to @ 1/2 and is the smallest jet in the float bowl
main jet -connected to the emulsion tube and what feeds the needle and also the biggest jet in the float bowl
fuel / air screws these can be on the top ,bottum,side of any carb and vary in turns from 1/8th to 3 1/2 and control idle to just off idle


**** What i wanna know is how many of you have the rubber plugs in the slow jet hole?************ :stickpoke:  :duh:
Title: needles jets and carbs oh my!
Post by: PitterB4 on October 03, 2005, 09:24:49 AM
Quote from: "gsxr400 racer"

**** What i wanna know is how many of you have the rubber plugs in the slow jet hole?************ :stickpoke:  :duh:


+1
Title: needles jets and carbs oh my!
Post by: gsxr400 racer on October 03, 2005, 09:31:01 AM
Thats a spiffy new pick bro, I see a racer in the works!Got some new pics of my bike coming in the next few days motor apart re freshing it for the last race! :beers: