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Jase W
25th March 2005, 12:31
Ok, the bike shop (WMCC) has told me that my carbs are shagged on my 88 GSXR250, and that they are gonna need new internal parts eventually. Its running mint at the moment, but I would like to get this sorted. Does anyone know what its prolly gonna cost me to have the carbs' internals replaced? Is it worth trying to find second hand carbs in good nick?

Does any have any carbs that are in good nick?

Thanks :)

campbellluke
25th March 2005, 12:34
You have 4 carbs right?

On my GSX250s , I had one out of my 4 replaced about a year ago. And it only cost me $34 dollars I think. Shouldn't be too expensive.

Don't take my word for it though, im probably wrong :confused:

Sniper
25th March 2005, 13:31
Had my carbs fixed on my suzuki RGR and that cost me $467 for new jets???

Jase W
25th March 2005, 14:02
Hmm. Im pretty sure my bike is twin carb, but they are both twin throat....

geoffm
26th March 2005, 11:16
AFAIK, they are the same carbs as the GSX400X Impulse - pile of crap Aisains. You can't get parts for them easily, and they are cack anyway.
I wouldn't touch it until it is a problem, or look around for some Impulse carbs. Better yet, and 400 Impulse motor is pretty much a bolt in fit in those 250 models...
Geoff

Jase W
26th March 2005, 12:29
Nah im pretty sure they are Mikuni's...

campbellluke
26th March 2005, 12:36
I got 1, 29mm Mikuni for my GSX250s , new for $34 :confused:

$467 is expensive.. for fixing a jet. Let alone all of them. I wouldn't have been happy with a expense such as that.

Best you can do, is go to a Suzuki dealer and ask them for a quote.

Bitch at them if you think that is expensive.

Did they say that all the jets are going to need replaced?

Jase W
26th March 2005, 13:37
They just said the carbs will need new internal parts... so I'm guessing thats everything...

The carbs are Mikuni BSW27 according to the owners manual...

Coyote
26th March 2005, 16:42
Is it possible to remove the carbs and install fuel injecters?

campbellluke
26th March 2005, 22:43
Is it possible to remove the carbs and install fuel injecters?

Why would you want to do that? I guess if you went really steep hills all the time, fuel injection would be better.

Sure it is possible. Ive seen websites with Japanese people that inject their 250ccs , and make them turbo.

But , just go to your Suzuki dealer. And get them to give you a quote on the Mikuni.

Hopefully you don't have to pay anything like $467.

One of my jets wasn't responding fast enough under full throttle. ie. acceleration after 130kmph, wasn't as fast as it should be. And it was really cheap to fix.

I hope your carb problems. ( or future ) problems, are sorted out cheaply

Jase W
13th April 2005, 19:16
Ok scratch getting my carbs fixed. I've attached a quote from WMCC of what its going to cost. Carbs from a wreckers will be $280 not including cost of fitting/tuning. But thats unknown condition, for all I know they could be rooted too. I dont want to pay $1100 to have my carbs fixed, but then I dont want to pay to have duds installed. WMCC said they will check over any carbs I give them, but I doubt wreckers will offer refunds if they are screwed.

Does anyone know of someone selling GSXR250 parts and have a good set of carbs?

I'm going to ring around the wreckers and see what they have and if they'll take them back if they are going to need major work done.

speedpro
13th April 2005, 19:29
What about some "other" modern carbs and making custom manifolds? Even two carbs with a 1:2 manifold?

I think that's the bucket racer in me getting out and making suggestions.

Or what about a turbo with only one carb? You'd probably be able to do it for less than the $1000 for a new set of carbs. I've got this tiny little turbo that only cost $175.

Jase W
15th April 2005, 23:22
Nah i'd rather put stock ones on because i want to go streetstock racing with it...

lukehyslop
20th April 2005, 16:55
I've got a gsxr 250 engine that I've been using for parts you can have the carb for $50 - cant guarentee its condition cos I haven't used it but it looks ok. Im in Palmerston North.

GROOMER
20th April 2005, 19:06
I've got a gsxr 250 engine that I've been using for parts you can have the carb for $50 - cant guarentee its condition cos I haven't used it but it looks ok. Im in Palmerston North.

If liftbacks not keen, I sure would be.

Jase W
20th April 2005, 19:14
haha sorry man I'm not gonna pass up that opportunity hehe :2thumbsup

Slingshot
20th April 2005, 19:27
If liftbacks not keen, I sure would be.

Are you still having problems?

GROOMER
20th April 2005, 19:32
haha...yeah unfortunately :(

FROSTY
20th April 2005, 21:27
Thiose lil fellas has nightmare diaphrams that split real easily

GROOMER
20th April 2005, 21:38
Thiose lil fellas has nightmare diaphrams that split real easily

Thankfully hasnt happened to my ones yet :wait:
I hear they are mega super heaps dollars to replace so I wouldnt mind never knowing what a split one looks like :)

Kwaka-Kid
20th April 2005, 21:49
they are a Twin throat, dual carb setup. Have tuned 1 set on a friends bike, havnt heard bad stuff about them... but by the looks why cant you change the carbs to something else? As for sticking with street stock.. sheesh they would never notice hidden under the tank like that and i doubt its going to make a massive difference + there is much tolerence in the class for doing such mods to save money, as it doesnt warrent the value of the bike to have those carbs overhauled.... However.. if they are working fine at the moment, as it stands.. leave them alone... exactly what did the guys @ WMCC say needed doing? I cant see how you can tell if a diaphragm will need replacing "soon" etc... you can see slide wear etc yes... however meh! The old GS1000 (yeah okay not currently runnig, but thats electrics!) in the corner has worn right thru the chrome on the slides, meh! Run just like they were new once balanced/tuned.. only minor problem is sometimes the slides dont close fully but thats when it hasnt been run much and its getting a return cable one of these days to help fix that.

I say save yah money and keep riding the beast! and yeah possibly buy this other guys carbs as a backup but dont tamper untill it needs doing.

Jase W
20th April 2005, 21:52
Yeah I'm just gonna wait until the carbs pack up again. I'll get these carbs for when I do need them. All WMCC told me is that the carbs are very worn and need all new internal parts :spudwhat:

Kwaka-Kid
20th April 2005, 22:21
yeah but WMCC have Jimmy working for them dont they.... surely that should tell you summit?


haha! :P

Jase W
20th April 2005, 22:22
Nah thats all they told me...

Kwaka-Kid
20th April 2005, 22:31
Sorry dude :P that was a pisstake... missed yah boat fully on that one!... haha anyways yeah thats cool... hahah ahhh still laughing, *woosh* straight over your head?

Jase W
21st April 2005, 00:12
Yeah pretty much... I have no idea who Jimmy is...

Eddieb
21st April 2005, 16:40
Or what about a turbo with only one carb? You'd probably be able to do it for less than the $1000 for a new set of carbs. I've got this tiny little turbo that only cost $175.

Tell me more about this turbo, got a url?

speedpro
21st April 2005, 17:50
Tell me more about this turbo, got a url?
It's tiny, from a Suzuki Cappucino I think. The engine designation was Suzuki F5A which is a 597cc three cylinder. It's actually an IHI RHB31. For a 600 you'd want something about twice the size, just guessing at air flow and horsepower etc etc. This one is watercooled and everything.

I got it from The Motor Shed, 7 Cain Road, Penrose. Cost in Nov 1999 was $155.55 + GST with no guarantees or warrenty. Ph 09-5269197 of Fax 09-5269198.

I reckon the trick would be to go fuel injected as well with full engine management. There are enough bikes around with fuel injection now that you should be able to get an injection manifold for a reasonable price(Yeah right!) and cut it to fit. Otherwise a blow-through setup but then we're back to the carb issue again. The problem with a draw-through system, like a Z1R-tc is fuel distribution. You always get one cylinder leaner than the others and that one always blows up first.

Slingshot
21st April 2005, 21:30
This (http://www.trademe.co.nz/Trade-Me-Motors/Motorbikes/Motorbike-Parts/Engine-drive-train/auction-25792555.htm) could be an option.

gamgee
21st April 2005, 22:31
theres a whole gsxr engine for sale on trademe at the moment

speedpro
23rd April 2005, 21:52
http://members.dodo.net.au/~aepl/cbr/Turbo2.html

Interesting what these guys have been playing with and quite amusing. The turbo is the same as what I have. Their manifold is VERY ugly but no more so than a Nissan Skyline turbo so who knows. Definitely not ideal though.

_tui_
13th April 2007, 11:28
I think the suzuki bandits (gsf250) have the same engine so you could shop around for someone wrecking one of them. You have a better chance of getting a good carb that way too because they are a newer bike. There was one guy on trademe wrecking one,
Good Luck