conked out at same location 3 days in a row.

[fecto321]

Hey guys, I have a strange problem with my bike at the moment. It's a zx6r 1998. For the past 3 days my engine has conked out at the exact same part of road. It then takes about 2 minutes untill it will start again, then seems to run fine.

I ride the bike to work and back every day with no problems on the way there. However on the way home, about 3 miles from my house the engine starts to groan and sound a bit like a wet fart. It also looses power as if fuel isn't getting through properly, then when i pull my clutch to go down into first gear at the top of the lane by my house she breaks down. (How lucky am i that the point she actually brakes down is right next to my house?) Today though she also conked out as i turned off the main road into my little lane. Luckly i had enough speed to just roll in and she started up again easily as i was rolling along.

The only thing i can think of that might be of significance is that the last 2-3 miles of my journey are all up hill. Not very steep but a constant gradual incline.

Any help would be very much appriciated.

[Nexus Icon]

It's more likely distance than the incline and I'd suspect the fuel system in some way. It sounds like it's either flooding or getting starved of fuel. Is the tank venting ok?

I guess that it doesn't do it on the way into work and that might be because it starts the journey on the choke, as it were.
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Greetings from Shitsville!

[MickC]

Does sound like a fuel problem doesn't it. Like 'Nexus Icon' sugests check the tank breather system. (when you set of its downhill so less work for the engine less fuel used, coming back you need more throttle because of the hill so more fuel burnt)
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[fecto321]

I normaly start with the choke on the way home aswell. It's only ever on for 2 mins or so untill i get onto the proper road. how do i check if it is venting properly?

[MickC]

Easiest way is to leave the petrol cap off next time you ride home see if it makes it all the way, if it does you'll need to locate the breather hole and clear it ( on my 900 its in the cap - little hole, get some WD-40 and blast it through it)
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[fecto321]

It's not on my fuel cap, will try and find out where it is. Does anyone here know where it will be on the 1998 zx6r g1? I cannot locate it myself and google isn't being very helpful

[Slacker24seve...]

[fecto321]

https://i51.tinypic.com/2dhcpqp.jpg
https://i51.tinypic.com/2hs9kx4.jpg

Ia it the hole in the top right of the first picture? It's just that it doesnt seem to vent out anywhere when the cap is closed

[MickC]

To the right of the rusty screw and if you look on the petrol cap theres what looks like a small tube it looks like they will be it. Blast the one in the petrol cap with WD-40, if you spray the one on the tank only use a short blast, you don't want to fuck up your petrol, maybe a ethonol based spray like 'easy start' might be better there.
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[fecto321]

I had to take all the alen key screws out and take the whole cap off to find the hole. The pipe just led to a hole that comes up under the rubber. The hole in the picture by the rusty screw seems to do nothing and the cap doesn't fit back on if i try to position that part above the air hole. Anyway the pipe is clear however I have a new problem. I managed to drop a fucking screw into the fuel tank. Is it going to do any damage down there?


I have found an old magic trick which is bascily a magnet on the end of a peice of elastic, going to try and fish it out >.<

[heehaw]

That our dry joints in the ecu
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Its important, otherwise it wouldn't be there.

Retro Rider Bicycles: CB125TDC, CBR400RR, BSA Bantam.

[fecto321]

The screw is out! Don' think my problem has anything to do with the vent pipe though as it was clear

[BigGeeking]

how is the fule filter (if it has one)
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Bendy "Flip front. I can filter down the M4 while shoving a Twix in my face."
honda CG 125 2001 SOLD-- current Bandit 400--SOLD. current SV650s 2000
MOD 1 ON 20/7/2011**passed** MOD 2 ON 17/10/2011***passed***,,

[fecto321]

The problem persists. Same story, fine on the way to work and on the way back untill i hit the same stretch of road again. Today i was trying to overtake something and all the power went >.<. I pulled in somewhere and turned the bike off for 5 minutes. It ran fine for about half a mile then the problem started again and it died as i turned off into my lane.

[unitynotsocri...]

Aliens,ionizing radiation,witches?All i could think of is it might be overheating .On the way to work the engine works less and is probably not quite fully hot when you get to work as its only a few miles,on the way home its uphill (and ambient air temperature is higher,assuming your not on the night shift) so it might be seizing.Like when you try to overtake.
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nearly a normal tax paying tosser.......with ferrileness suzi100,cg125,cb125scb100n,cb175,cd100,cj250t,kh250,c15,125 bantam,super 6,rickman gs750,xt500,250rs,dt175,lifan125,dolomite1850,metro,Morris220ld,morrisfg,leyland princess,range rover,corsa,vw camper .now struggling with legs. MORE ORDER = MORE CHAOS

[weasley]

Sounds like a fuel supply problem to me. Kinked fuel hose? Blocked or kinked breather? These are the easy ones to check and eliminate. Then you could suspect the fuel tap or fuel pump.

The other one mentioned above is an ECU dry joint. The symptoms are the same as found in old Honda Civic/CRXs when the fuel pump relay develops this common problem.
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Yamaha XJ600 | Yamaha YZF600R Thundercat | KTM 990 SMT | BMW F900XR TE

[MickC]

Whats it like on a long run, does it run for say three or four miles, conk out then run for the same distance before dying again. Or does it die after three or four miles then die again a lot sooner, starting to wonder myself now if it isn't an overheating issue (whats the oil level/condition like?)
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[el_oso]

i had a similar problem a little while ago.
bike kept cutting out when going 71mph. 70mph perfectly fine. 71mph, bike would cut out after a few seconds. turned out the hose was twisted in such a way that that it would restrict fuel flow slightly. check that there are no kinks in hose or that the tank hasn't trapped a fuel line.
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Duke 390
Previous: '05 XR125L | '96 XJ600S Diversion |'05 Suzuki GSXR1000 | '05 Honda CBR125-R | '97 YZF 600R Thundercat | '11 Honda CBR250
Car: Jeep Wrangler 4.0L

[unitynotsocri...]

witches,followed by overheating,followed by overheating dry joint,or(blocked thermostat,faulty sensor ?)
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nearly a normal tax paying tosser.......with ferrileness suzi100,cg125,cb125scb100n,cb175,cd100,cj250t,kh250,c15,125 bantam,super 6,rickman gs750,xt500,250rs,dt175,lifan125,dolomite1850,metro,Morris220ld,morrisfg,leyland princess,range rover,corsa,vw camper .now struggling with legs. MORE ORDER = MORE CHAOS

[fecto321]

Thanks for all the replys guys.

I do not think it is an overheating issue as i have been stuck in traffic queues which causes my engine to get very hot but she still runs ok. I don't leave for work untill 9:30 ish so the sun has been blazing for a couple hours already and by the time i leave work in the evning it is probably cooler then when i set off in the morning. I have this problem when only at 3-4 blips on the heat meter. The oil is also good.

I have realised that the strip of road I get the problem on is the first place on the way home where i can take her to 60+ mph for longer then a minute or so and it is all up hill. So it seems she cannot keep up with fuel demand when needing it most. When i get time (damn work) I shall have a look at the fuel pipe and will hopefully find a kink though I think I have to remove my tank to get at it. If not maybe the carburettor is blocked?

The vent pipe is deffinitly not the problem. It's is made of solid metal so cannot kink and i have pushed wire through it and blown through with a straw and it is clear.

[MickC]

You might have to pull your carbs as you say to give them a clean, before you do change or install a new fuel filter and put some cleaner in the tank such as 'Redex' or magic bullet and give it a good run at higher rpm, it could shift any thing causing a blockage and is quicker and cheaper than pulling your carbs.
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[robocog]

If its like the GPZ500 system the gas cap does have a rather elaborate vent system
Cannot recall exactly what it looks like but I know I stripped my fuel cap right down into component parts and cleaned it
IIRC it involved a diagphram whithin the lid

(beware theres some small springs and rods and at least one very small ball bearing IIRC that will ping out and fly under workbenches/fridges faster than you can follow them)

The metal pipe that comes out from the tank is connected to the inner rim (under the rubber) of the filler...the vent is in the cap (and exits through the sticky out bit on the lid into the recessed hole in the rim)

My tank still makes whistling noises as it warms up/cools down in the sun despite cleaning and checking the vent system...aparently this is common and I dont have any issues with it cutting out or going lean despite mine soundling like it could be an issue

As a test - can you not run the bike with the filler cap open for the troublesome leg of your journey? (not going to bother pointing out the obvoius safety wanrings here)

If that sounds a bit dodgy...remove the rubber sealing gasket on the lid so its no longer air tight

If thats more hassle than its worth...when it stalls pop the lid open and see if it makes a sucking of air type noise

I have a glass inline fuel filter directly after the petcock and is immediately obvious when the fuel needs switching to reserve at a glance (as well as the engine getting spluttery)

Is yours slightly see through?
Maybe worth a glance next time it stalls?
Popping the lid open on the tank you will see it fill back up if its a blocked tank breather issue

Could always buy a length of clear fuel hose and loop it so its in view at the side of the tank as a temp check of the situation

Good luck diagnosing it

Regards
Rob
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Needs a bigger garage...

[fecto321]

Hey guys
The problem is solved and it was a water filter of all things.

I don't know enough about it to explain exactly what the problem was and I may be wrong here but bascily I think the zx ranged had a problem with fuel freezing so they installed a system involving the water filter to solve the problem. However mine was totaly blocked up with gunk and no water was getting through.

I will get a better description for you all when i speak to the guy who fixxed it for me later.

It's quite a lucky coincidence that my step father was talking to sombody who used to own a zx9 which had the same problem.

[evoboy]

Carb icing? In the middle of summer?
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Suzuki GT250 x7------- Fazer 600------CB250RS------Aprilia Rally 70----- Bandit 600

APT Motorcycles

[fecto321]

Carb icing is just as likely in the summer as in the winter, depending on how much moisture is in the air