stumbles/rich down low?

funkfizzer · Post by **funkfizzer** » Tue Jul 13, 2004 3:30 pm

Hey guys, new to this forum but it seems to be quality. Anywho, my '95 fzr 1000 runs great except for right off of idle in first gear, usually in town after warming up. I mean sometimes it's bad. Any ideas where to start? Thanks

Ton up · Post by **Ton up** » Tue Jul 13, 2004 5:27 pm

I'd be willing to bet it's worn emulsion tubes. The low rpm stumble seems to be a common problem. Just in the last 2 months there have been 2 or 3 topics started about this, if you have a look through this one and 89-95 FZR1000 you should find them.

Post by **jjs777** » Wed Jul 14, 2004 12:58 am

how many miles on the 95 funk? -John

Thor · Post by **Thor** » Sat Sep 04, 2004 12:26 pm

What are Emulsion Tubes and where are they?<img src=http://img.photobucket.com/albums/v209/ ... ng_sad.gif ALT=":sad">

Nbot · Post by **Nbot** » Sun Sep 05, 2004 12:30 am

Howdy Thor, emulsion tubes are also called needle jets and they are the brass tube that runs down into the bowl where the main needle travels up and down in (and the main jet is screwed into the bottom of the tubes also). I saw on your other topic maybe sluggish at low RPM's, which a carb sync maybe good, but if its a flatspot ~3000rpms then check out this common problem of egg-shaped tubes...go to page like 3 or 4 in the 89-95 FZR1000's and look for two thread's called "rev problems" and also "0-3000 Stumble/flatspot"...ps, you can't trust the search engine here on EZboard (its junk!), you just sort of have to look thru the pages I guess.......

Andre · Post by **Andre** » Sun Sep 05, 2004 11:45 am

Got a similar problem with my '95 Fizzer. Plus chews gas like crazy, less than 28 mpg ! Spent hours cleaning the carbs and resetting float levels etc. No real improvement ! Odered a set of needles and needle jets 'cause I see they set on slot #1 so recon they worn and previous owner tried to overcome problem. Running some wierd nameless headers and pipe, but ordered Akro system. Probably also reason for lousy running Big benefit came from changing the fuel filter though.

Thor · Post by **Thor** » Sun Sep 05, 2004 11:56 am

Thnks NBOT, Much appreciate your thoughfuk response .Will get back after I check it out.<img src=http://img.photobucket.com/albums/v209/ ... Cheers.gif ALT=":cheers">

Thor · Post by **Thor** » Sun Sep 05, 2004 11:59 am

Sorry for the Typo.No offence meant.Just slip of the key."Thoughtful Response" is what I meant.<img src=http://img.photobucket.com/albums/v209/ ... iker_3.gif ALT=":riding">

Nbot · Post by **Nbot** » Mon Sep 06, 2004 12:25 pm

Sheez, your sure know how to make friends in a hurry!...j/k<img src=http://www.ezboard.com/images/emoticons/wink.gif ALT=";)"> Oh, and there should be an edit button when you'rer looking at your post next to your name........ Nbot '94 Fizzer LitreEdited by: <A HREF=http://p072.ezboard.com/bexupbrotherhoo ... ot>Nbot</A> at: 9/6/04 10:26 am

Thor · Post by **Thor** » Mon Sep 13, 2004 8:58 am

Thanks For the Education Nbot.Good to learn a new term.In my part of the world (India) every one calls them needle jets as you pointed out.Some of my tech friends went hyper and had sleepless nights as that they did not know what an Emusion tube was .Your mail helped calm them down . The carb Sync along with a proper adjustment of the EXUP valve did the trick.It runs like a dream now. Thanks Once Again. I Hope no Typos this time.<img src=http://img.photobucket.com/albums/v209/ ... Cheers.gif ALT=":cheers">

dragracer1951 · Post by **dragracer1951** » Mon Sep 13, 2004 9:38 am

did you replace the emulsion tubes (needle jets) If not and you have over 15K on the bike I'd be willing to bet that you're still pretty rich at idle and just above...Actually, worn needle jets will cause the bike to run rich all the way through the needles and you certainly won't be able to tune around it at idle and just above... Jim

Thor · Post by **Thor** » Mon Sep 13, 2004 11:08 am

No I have not changed the Needle Jets as yet. Next step.But yes , I think its running rich as the mileage is just 12KM per litre.<img src=http://img.photobucket.com/albums/v209/ ... Waving.gif ALT=":hi">

Nbot · Post by **Nbot** » Mon Sep 13, 2004 11:30 am

No problem Thor <img src="http://img.photobucket.com/albums/v237/ ... mbs_up.gif" style="border:0;"/> India eh? What part? If you don't mind me asking, is there much highway to drive on there? I'm sorry if I seem ignorant, just the only pictures of India I've seen are crowded streets with cows on them............ Nbot '94 Fizzer Litre

Post by **jjs777** » Mon Sep 13, 2004 6:43 pm

does a typical JET KIT include emulsion tubes ? -John 95 FZR1000 90 FZR1000

dragracer1951 · Post by **dragracer1951** » Mon Sep 13, 2004 7:39 pm

Nope....not at a hunert bux a set Jim

Thor · Post by **Thor** » Tue Sep 14, 2004 1:53 am

Nbot India's changing big time. We have a project called the "Golden Quadrilateral " Project on since last 6 years to connect East , West ,North, South & Central India with 8 lane highways. About 30% completion has happened . Yes the cities are crowded, but the infratructure is improving dramtically.To give you an example Bombay has 55 Flyovers which came up in Just 3 years. New Delhi has 27 and 14 more are under construction.I belong to New Delhi its a beautiful city with real wide roads and we have a group of 30+ bikers with Bikes like the Hyabusa, ZX12R, CBR1000RR,1 hARLEY , ZXPR'S ETC TO NAME A FEW. Will get some shots of the Highway we drive on, its a 350Km road from Delhi to Jaipur, concrete and 8 lanes. We also had the first Bike movie made in Bollywood called "Dhoom" released last week. Check it out on the net. <a href="http://www.apunkachoice.com/movies/mov4 ...  Bye for Now.<img src=http://www.ezboard.com/images/emoticons/happy.gif ALT=":D">

Nbot · Post by **Nbot** » Tue Sep 14, 2004 10:55 am

Nice to know Thor, I'll give the Bollywood flick a peek!.........JJs, not at $34 per tube!! Nbot '94 Fizzer Litre

Thor · Post by **Thor** » Tue Sep 14, 2004 12:55 pm

Nbot, Couple of Pics with my CB600F2 one has the Highway. <a href="http://predator.bikepics.com/icon/honda ...  <a href="http://predator.bikepics.com/icon/honda ...  <a href="http://predator.bikepics.com/icon/honda ...  <a href="http://predator.bikepics.com/icon/honda ...  <a href="http://predator.bikepics.com/icon/honda ...  Incase u are interested check out a site called www.Xbhp.com this is one of the best biking sites in India.The revised version comes on on 19th Sept its moving to a new server.I'll stop selling India in case I'm becoming a bore. <img src=http://img.photobucket.com/albums/v209/ ... Cheers.gif ALT=":cheers">

Nbot · Post by **Nbot** » Wed Sep 15, 2004 8:24 am

Nice pics Thor, and you're definitely not a bore. Never would have known from the pics I'm used to seeing of India, but looks like you've got room to ride for sure.<img src=http://img.photobucket.com/albums/v209/ ... iker_3.gif ALT=":riding"> Nbot '94 Fizzer Litre

ChuckD · Post by **ChuckD** » Wed Sep 22, 2004 9:45 am

Actually, the emulsion tube is the needle jet, different terminology, that's all. <a href="http://www.factorypro.com/products/need ...  Cut and paste this httpand it will take you right there. This is a fix for ALL 38mm Mukuni carbs. Factory Pro has them in stock for $20 US per tube and can shio anywhere. Ever since I "left" the moto parts world, they now have more in stock. For a while there, my shop was buying them out, but now.... I have sent these to over 7 different countries and it ios a no brainer, if yours looks worn, then this is the only fix, not to mention that they resist ovalling from the "harder aftermrket needles. CHUCK D.

EXUP Worldwide

stumbles/rich down low?

stumbles/rich down low?

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Re: stumbles/rich down low?

Silly Question?

tubes

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EMULSION TUBES

emulsion tubes

Re: emulsion tubes

Thanks!

So.....

Running Rich

Re: Running Rich

emulsion tubes

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India

Re: India

Re:India

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Re:tubes