Date: 28-03-24  Time: 11:06 am

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1
FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 26 April 2015, 02:59:04 pm »
I'm now back on the road.
I completely drained the tank, filter and pump and then finally the float bowls; took the filler cap apart to get rid of the rust and tidy it up, filled it up with some fresh petrol and away it went. One hiccup within 30 seconds but afterwards was running cleanly for 10 miles.

Does anyone want to buy 12.5l of what I assume is water contaminated petrol??!@

2
FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 22 April 2015, 10:40:20 pm »
Unfazed: that's my Saturday morning taken care of! Thanks for the method you've suggested. I'll let you know how I get on.

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FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 21 April 2015, 08:58:24 pm »
Ita got a brand new tps, air filter, fuel filter and spark plugs.

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FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 21 April 2015, 07:59:36 pm »
I've just taken it out for a spin now and the problem hasn't fully gone away. :(
It seemed fine revving it at the kerbside but then 1 min into a journey the engine randomly blips and begins to stall. If it leave it idling for a while it ticks over fine, until i get going again and whilst accelerating it runs like crap.

I think I'm going to have to completely drain the tank, and then the entire fuel system again to rule out any fuel contamination. The only other component in the air/fuel system that could be at fault is the fuel pump, but other than that I might be looking at an electrical fault from the coils??

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FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 21 April 2015, 01:14:28 pm »
That's a very good point. The filler cap is beginning to rust which would indicate the presence of water. There's currently 10l of fuel in there which I might try and drain to inspect before considering to put it back in. Thanks for the tip on the filler cap, I will go out and buy myself some locative rust converter!

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FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 20 April 2015, 09:57:46 pm »
Also, as unfazed mentioned, don't use steel wire to poke gunk out of the holes in the jets. I snipped off some old electrical cable and used a strand of copper which is softer yet still rigid enough and therefore won't damage the jets.

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FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 20 April 2015, 09:52:53 pm »
The carb gasgets looked fine and so I didn't need/want to replace them. I simply gave them a bit of a rub down with carb cleaner to get rid of any build ups.

The O-rings to the main jets I also left on as they were. They seemed like they were in good condition so again I didn't bother replacing them and soaked them carb cleaner with the jets.

If you're looking at taking your carbs apart soon, some of the screws were really tricky to remove without tearing the heads off, but a bit of WD40 left to soak and a knock with a hammer did the trick of loosening them.

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FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 20 April 2015, 09:31:39 pm »
I've finally got the carbs cleaned out and back on the bike with a new fuel filter for good measure. The carbs were tricky to get back in especially getting the throttle cables fixed again. It's very easy to get the accelerator cable caught around a lower connection on the carbs, so I would always advise to get the accelerator and decelerator cables connected before pushing and fixing the carbs back into the carb rubbers and air box.

On turning the ignition the fuel filter obviously kicked in and took longer than usual to stop pumping and then all it  took was a few cranks of the starter to get the fuel flowing through the system again, but once fired up it was roaring with the throttle open.

I've tried to attach some photos of the white gunk that had built up in the carbs. It was almost like the gelatin from a pork pie but not as tasty!
FZS600 clogged carb1
FZS600 clogged carb1
FZS600 clogged carb2
FZS600 clogged carb2
Thanks for everyones help and hopefully this post may help someone else in the future from a google search.

9
FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 19 April 2015, 02:17:26 pm »
Yeah I left it over the winter outside with a cover on. As it wasn't running well anyway I wasn't firing it up every few weeks like I normally would just to keep it in tune.

Carb 3/4 now. Ive got carb cleaner to clean all the jet etc and trying to do a decent job cleaning. I might have it sorted before sun down!

10
FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 19 April 2015, 02:05:27 pm »
Thanks for the reply unfazed. I think I've found my problem. There is a white goo in every float tray that's clogging the jets.

I think once these are all cleaned out it might work again!!

11
FZS600 Fazer / Re: carb balancing what numbers do i need
« on: 19 April 2015, 12:35:10 pm »
I have the same carb sync kit as you by the looks of it, and mine tend to come in between 10 and 11.

As Slappy says, the key thing is that all 4 line up, but I am interested to hear if there's anything wrong with them falling into the red area as your illustration shows.

12
FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 19 April 2015, 12:24:58 pm »
I'm going to give them a good clean but wouldn't have thought it was a major issue.

Top tip:
When removing the carbs, it makes it much easier to release the 2 throttle cables at the handlebar end to give yourself even more slack in the cables at the carb end to remove them from the bracket.

13
FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 19 April 2015, 11:49:07 am »
I've now bypassed the fuel filter and fired it up with the same problems. It's quite dirty so I'm going to replace it anyway but it isn't the cause of the problem. The fuel pump also appears to be working fine.

When I took the carbs off though there was some quite salty deposits around the insides of the carb rubbers.

<img src="http://foc-u.co.uk/MGalleryItem.php?id=2534" alt="" />

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FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 19 April 2015, 10:00:46 am »
Thanks everyone.

The fuel tap is open - it is something I always forget to turn it back on after I take the tank off! I'm going to have a look at the fuel filter first following the comments from Fazerrider Darsi and Anutz.

I'll keep you posted!!!

15
FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 18 April 2015, 08:17:22 pm »
I've tried hammering on full throttle and it kills the engine completely. I'm guessing the fuel pump and fuel filter would be fine if it idles with the choke open.

I think I need to take the carbs out and see if the jets are blocked as I'm guessing if the idle jet is clear and air gets through with the choke open, but when the throttle opens it stalls, (and the air filter is brand new) it must be the main jets not supplying enough fuel.

Thanks very much for everyone's comments.
Last question before I take the carbs apart - are there any important gaskets/rings etc that need replacing on re-assembly if I'm stripping down the carbs?


16
FZS600 Fazer / Re: Idles with choke open but stalls on acceleration
« on: 18 April 2015, 03:50:26 pm »
Carb rubbers are fine. I sprayed some carb cleaner over them with the engine running and there was no sudden rev from the extra fuel of the carb cleaner.

I was also thinking it might be the carbs need a full clean. All 4 cylinders are firing, so it's not the sparks or electrics.

I'll have to try pushing through to the higher revs. As soon as I was putting the throttle on it was instantly stalling.

(Fazerrider: The low voltage problem was solved by a new battery. This be has been expensive to maintain over the past few years!!)

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FZS600 Fazer / Idles with choke open but stalls on acceleration
« on: 18 April 2015, 12:10:17 pm »
Hi everyone,
I had a problem just before winter with poor running on acceleration, and put it down to a faulty tps as I had the recounter fault showing with the counter flicking between 3 different positions. For about a year it was never caused a problem with the engine but in October with the poor running I decided to buy a second hand one and fit it to the bike. This didn't solve the poor running g on acceleration so I left it over winter and bought a brand new tps as the 2nd hand one also had resistances outside of the Haynes Manuel spec.

Having put the new one in yesterday along with a brand new air filter and new spark plugs, the problem persists. The engine idles with the choke on but when I open the throttle it stalls.

The vacuum of the carbs seems fine as I have a carb sync set, and there doesn't appear to be any leaks in the manifolds.

I think I know where my problem now lies, but I was hoping for some confirmation from people on here if you are kind enough to contribute to my problem solving.

Many thanks in advance.

Dave.

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FZS600 Fazer / Re: Battery Losing Charge
« on: 17 September 2014, 10:59:36 pm »
Cheers guys. My concern was there might be a deeper fault such as the regulator, but it appears that it's just a knackered battery from from what you are saying.

Down to the local battery store for me (if such a place exists!!)

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FZS600 Fazer / Re: Battery Losing Charge
« on: 15 September 2014, 10:43:47 pm »
When the engine is running and everything such as lights etc turned off the voltage flickers sporadically between 10 to 12V which means it's taking a charge from the stator like it did from the trickle charger but it's just not retaining it.
I can't test the ampere draw as it's now completely flat again!!

20
FZS600 Fazer / Battery Losing Charge
« on: 15 September 2014, 08:28:38 pm »
I jumped on the bike on Saturday, put the keys in the ingition and turned it on but everything was dead. I checked the battery and it wasn't even reading a voltage. I put in on a trickle charge until the voltage was above 14V, connected it all up and still nothing, so I checked the voltage again and it was gradually falling at about 0.1V per second!
I then disconnected all of the leads to work out what was drawing power, but it still kept falling. I presume the battery is completely knackered, but even when connected a second battery in parallel to jump start it, once I took the 2nd battery away the voltage of the knackered battery was jumping all over the place, to the extent that when I turned ON my lights or heated grips etc, the voltage went up to over 12V, and when I turned them OFF it was going down to 10V.

Is it purely a knackered battery or might there also be a fault with the regulator?? I don't want to buy a new battery to knacker that one as well if something else in the circuit is causing a failure.

21
Greenman is right, I had the exact same problem. Buy yourself 4 new NGK plug caps and simply trim the existing HT leads to give the caps a fresh bit of metal to contact to.

I wouldn't bother changing the HT leads, they are an absolute nightmare to get out of the coils or to fit some fresh ones without breaking the very brittle plastic clips.

22
FZS600 Fazer / Re: Lifting fuel tank
« on: 01 June 2012, 09:23:13 am »
I find that the tank won't go more than 45degrees without putting pressure on the long bolt mounting - but by that stage it's pulling on the fuel level wire which needs to be unconnected.
 
If I need it to stay up whilst I work I attach a strong bungee chord to the front bolt hole of the tank and strap it back to near where the tool kit is kept under the seat, and also attach a weak bungee from the front bolt hole to the front of the bike to stop it twisting over and spilling fuel out of the top.

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FZS600 Fazer / Re: Red, i think you owe me a magners !!
« on: 28 May 2012, 07:24:25 pm »
Congratulations ade - I've been following your posts wondering if you would ever get it fixed!
Just through reading the millions of posts regarding the stutters I have learnt quite a lot - if future foccers ever search for the word 'stutter' I think they would be overwhelmed by the number of search results!

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FZS600 Fazer / Re: 3rd puncture in 6 months!
« on: 19 May 2012, 02:39:21 pm »
It came to £36.62 in the end. It was only £45 per hour labour - I presume it was one of the less qualified mechanics fixing it (very reassuring!!)

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FZS600 Fazer / Re: ok....let`s try another angle !
« on: 19 May 2012, 12:30:45 pm »
At idle mine pumps once every 4.3 seconds taken as an average from 1 minute of counting.
If I held it at 5000rpm for one minute my next door neighbour would most probably come around and stick a kitchen knife up my arse.

I doubt my results would be affected by the fact that my downpipes are riddled with holes again (which does affect the performance of the engine but probably not the fuel filter timings) but thought I would mention it in the interests of fair science.

I'm guessing for a true experiment you would have needed the results a 5000rpm as well so I'm not sure how helpful I've been - although if you lived in London I would be more than willing to lend you my carbs for an afternoon.

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