Zxr250c won't idle

[Darealsytfromdagheto]

Hi there,

I just cleaned my carbs and replaced my spark plugs,

I had it running while cleaning the carbs and then put everything back together, it was running mint and as i was doing up the last fairing, the bike suddenly died. I tried to restart it and it only starts with choke then dies straight away. Any ideas?

[mossy1200]

Plug in fuel pump.
Turn fuel on.
Floats are stuck.
Slides are stuck.
Fuel line connected to breather tube.
Out of petrol.
Jets blocked.


Change user name.

[Darealsytfromdagheto]

Plug in fuel pump.
Turn fuel on.

Change user name.

Haha how do i change my name it takes to long to type when i log in. And im pretty sure its on haha

[nzspokes]

Plug in fuel pump.
Turn fuel on.

Change user name.

Was thinking the same thing....:laugh:

[Darealsytfromdagheto]

Was thinking the same thing....:laugh:

The name was just a joke gawsh

[mossy1200]

The name was just a joke gawsh

A - Quit and sell your profile on trademe.

B - Start a new profile.

C - Spend profit on taking bike to bike shop.

D - Start thread about bike shop charging you 4hrs to find bent needle in carbs.

E - Great success.:eek:

[Darealsytfromdagheto]

A - Quit and sell your profile on trademe.

B - Start a new profile.

C - Spend profit on taking bike to bike shop.

D - Start thread about bike shop charging you 4hrs to find bent needle in carbs.

E - Great success.:eek:

Whats the street value of a account like mine in todays market?

[Darealsytfromdagheto]

The bike was running mint and even started first pop without choke once the plugs were and kept idling fine then just cuts out, i have the switch pointing to the on position and put the line back in the correct place. It has fuel.

[nzspokes]

It has fuel.

Apparently not.

[Darealsytfromdagheto]

Apparently not.

So you think it's not getting fuel? it has about half a tank

[nzspokes]

So you think it's not getting fuel? it has about half a tank

Well if it starts on choke, that means it has spark. It probably wont start on choke for to long before that circuit runs out of fuel.

[mossy1200]

The bike was running mint and even started first pop without choke once the plugs were and kept idling fine then just cuts out, i have the switch pointing to the on position and put the line back in the correct place. It has fuel.

Not through the inlet valves though.

Its likely primary jet blocked or the fuel level in bowl is very low. Needle stuck or floats stuck or needle height altered.
Assume you have bike on side stand?
Try running it upright if its low fuel level issue it might run longer while not on stand.

Maybe you adjusted idle so low it runs lean unless choke is on.

[Darealsytfromdagheto]

Not through the inlet valves though.

Its likely primary jet blocked or the fuel level in bowl is very low. Needle stuck or floats stuck or needle height altered.
Assume you have bike on side stand?
Try running it upright if its low fuel level issue it might run longer while not on stand.

Maybe you adjusted idle so low it runs lean unless choke is on.

Okay cheers, i'll try start it in the morning standing up, the neighbours won't like me starting it now haha

[mossy1200]

Okay cheers, i'll try start it in the morning standing up, the neighbours won't like me starting it now haha

I would have thought that most would have only been up a short time in the ghetto. Its only 10.30pm

[Darealsytfromdagheto]

:clap:
I would have thought that most would have only been up a short time in the ghetto. Its only 10.30pm

Yea you're right, i don't actually belong in the ghetto i just live here. Most of the people here are just waking up after a long day of watching day time etc.

[ducatilover]

I'd be checking the idle adjuster.
Then checking the vacuum line to the fuel tap is on and connected to the vacuum port on the intake runner

How did you clean the carbs? Did you twiddle any of the screws?

[Akzle]

you fucked it daryl. You dont deserve an rgv. Give it to me.

Open bowl drains. Fuel?

Bench sync you carbs, air pilots etc.
Get a coat hanger and bend it so you can stab at your jets with it.
Which ghetto do you live in. Masterton? Im sure theres someone close at hand who knows something. Being in the ghetto you can probably pay them in codys and weed.

[Darealsytfromdagheto]

I'd be checking the idle adjuster.
Then checking the vacuum line to the fuel tap is on and connected to the vacuum port on the intake runner

How did you clean the carbs? Did you twiddle any of the screws?

What i have found is both the lines going from the fuel tap are going to the right places (i think) and there is a nipple under the tank that hasn't got anything plugged to it, should there be something there? the hose going from the top of the airbox is going to the carbs? does this sound right?

[ducatilover]

What i have found is both the lines going from the fuel tap are going to the right places (i think) and there is a nipple under the tank that hasn't got anything plugged to it, should there be something there? the hose going from the top of the airbox is going to the carbs? does this sound right?

Is the nipple (giggity) on the tank the same colour as the tank, or a seperate fitting? If it's the same colour it's your overflow tube, hook a pipe to it that dumps to the ground. But won't effect your idle etc
Yup hose that goes over air box is called the carb bowl vent

[Darealsytfromdagheto]

Is the nipple (giggity) on the tank the same colour as the tank, or a seperate fitting? If it's the same colour it's your overflow tube, hook a pipe to it that dumps to the ground. But won't effect your idle etc
Yup hose that goes over air box is called the carb bowl vent

Haha okay yes its the same colour, I'm pretty sure the other two tubes coming from the fuel tap are connect properly, i really don't know why it wouldnt be getting fuel

[ducatilover]

Haha okay yes its the same colour, I'm pretty sure the other two tubes coming from the fuel tap are connect properly, i really don't know why it wouldnt be getting fuel

One line will be small, the other will be a 3/8 ish size? Pretty hard to muddle them up. But small one goes to the intake between carbs and head.

Have you tried dropping the fuel in the bowls once it stalls?
What have you set your float heights to?
Where are your idle mixture/pilot screws set to?

[Darealsytfromdagheto]

One line will be small, the other will be a 3/8 ish size? Pretty hard to muddle them up. But small one goes to the intake between carbs and head.

Have you tried dropping the fuel in the bowls once it stalls?
What have you set your float heights to?
Where are your idle mixture/pilot screws set to?

The bike won't even start with choke now, i haven't touched floats or idle screws so i'm assuming they are at factory spec?

[ducatilover]

Pull the spark plugs, see if they're dry or wet. Then check for spark again
Open a fuel bowl drain and check for fuel

[Darealsytfromdagheto]

Pull the spark plugs, see if they're dry or wet. Then check for spark again
Open a fuel bowl drain and check for fuel

So i opened air box and i managed to get it started. it revved perfectly and idle properly then it started idleing low and died and its doing the same thinh again

[nzspokes]

The bike won't even start with choke now, i haven't touched floats or idle screws so i'm assuming they are at factory spec?

I think i said that would happen.

[bogan]

Pull the spark plugs, see if they're dry or wet. Then check for spark again
Open a fuel bowl drain and check for fuel

^ This.

Divide the problem, finding out if the bowls have fuel (and decent flow) or not tells you a lot about where to look next.

Also, if your tap has a prime position try that.

[Darealsytfromdagheto]

^ This.

Divide the problem, finding out if the bowls have fuel (and decent flow) or not tells you a lot about where to look next.

Also, if your tap has a prime position try that.

Well the problem seems to have fixed its self. I put it on prime and it managed to idle and warm up. Took it for a ride and its running mint even redlines with no hesistation now! Thanks for your help guys

[mossy1200]

Well the problem seems to have fixed its self. I put it on prime and it managed to idle and warm up. Took it for a ride and its running mint even redlines with no hesistation now! Thanks for your help guys

Get a new tap assy or a recondition kit.
You will be running on restricted fuel flow into the carbs.
You will be riding up a hill , on the motorway or passing a truck with motor working hard and it will conk out due to empting the carb bowls or worse it will run extreme lean and blow up instead.

Or the 2 hoses are around the wrong way maybe.

[Darealsytfromdagheto]

So buy a new tap that bolts on the tank? Do you think that was the problem the whole time?

[Darealsytfromdagheto]

http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/fuel-oil-tanks/auction-789052117.htm

this??

[bogan]

Well the problem seems to have fixed its self. I put it on prime and it managed to idle and warm up. Took it for a ride and its running mint even redlines with no hesistation now! Thanks for your help guys

I think that means we've found the problem, if it only works on prime that problem has not fixed itself...

So it sounds like there is a problem with the vacuum actuated fuel valve then, being a fairly old bike it might have got a bit of rust/gunk in the works, I'd recommend pulling it apart, cleaning the tank filters, full disassembly of the tap and components and check for buggered seals (often they get to this stage and develop leaks as well as clogs). Oh, first step though, pull the smaller tube from the petcock while the bike is running and make sure that has a little bit of suction on it (should be able to feel it grab onto the palm of your hand kinda thing).

[bogan]

http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/fuel-oil-tanks/auction-789052117.htm

this??

On a side note, I've dealt with that guy a few times before, bloody good bugger. If you're in doubt just flick him a question asking what specific model bike it came off and if that is a compatible part to yours.

[Darealsytfromdagheto]

On a side note, I've dealt with that guy a few times before, bloody good bugger. If you're in doubt just flick him a question asking what specific model bike it came off and if that is a compatible part to yours.

Okay awesome, so i should see if the smaller tube has suction while running, and if it does that means its the fuel tap thats buggered? and if it doesn't have suction its a bigger problem??

[mossy1200]

http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/fuel-oil-tanks/auction-789052117.htm

this??

yes but read this ok

http://www.kawariders.com.au/archive/index.php/t-9388.html

You will be better off buying a diaphram kit new than a second hand tap assy.

[Darealsytfromdagheto]

yes but read this ok

http://www.kawariders.com.au/archive/index.php/t-9388.html

You will be better off buying a diaphram kit new than a second hand tap assy.

Ahh okay, so i won't ride it until i fix the problem, i'll start it tomorrow not on prime just in case and see if it works. if it doesn't i will buy a kit and fix it. thanks

[mossy1200]

Ahh okay, so i won't ride it until i fix the problem, i'll start it tomorrow not on prime just in case and see if it works. if it doesn't i will buy a kit and fix it. thanks

http://www.nrp-carbs.co.uk/shop/index.php?route=product/product&path=42&product_id=3020

That's the a/b kit haven't had time to find out if c is the same.
The fact that that kit is 20 pounds uk is $45 nzd indicates your local bike shop here should have a kit available for estimated $70.00 which I would call better value than $60 for second hand unit.

Note price is a guess only. Call you kwaka dealership and ask before doing anything else.
New complete tap assy on ebay are 200 nzd so that would indicate about a 1/3 for a recondition kit would be good value for money.

[Darealsytfromdagheto]

http://www.nrp-carbs.co.uk/shop/index.php?route=product/product&path=42&product_id=3020

That's the a/b kit haven't had time to find out if c is the same.
The fact that that kit is 20 pounds uk is $45 nzd indicates your local bike shop here should have a kit available for estimated $70.00 which I would call better value than $60 for second hand unit.

Note price is a guess only. Call you kwaka dealership and ask before doing anything else.
New complete tap assy on ebay are 200 nzd so that would indicate about a 1/3 for a recondition kit would be good value for money.

awesome man, thanks for your help, i'll let you know how it turns out!

[ducatilover]

I'll eat my helmet if a local shop has a kit, all my experience with Kawasaki NZ is they don't giv a fuck about anything more than 10 years old.
Pull the old tap apart and check it over, if it restricts flow it is something stopping the diaphragm from pulling back.
If you have a hole in the diaphragm it will piss petrol in to the vac line and flood one cylinder.

It's worth putting a pic up of the fuel tap, it will be a common tap to Kawasakis of the era