HELP ME BEFORE I BIN IT !!!

[BJ]

2007 87,000kms MY PROBLEM - bike will not fire up.
Bike has brand new fuel pump/ filter/teabag, new plugs, new air filter,
I recently purchased new clutch switch and sidestand switch which were given to the Stealership to put in.
I have no actual knowledge if this was done as I was overseas for two months at that time.
The Stealership advised that they had the injectors cleaned (I was charged for it) and they replaced, I think, the crank position sensor. After the Stealership the bike was not running properly (tiny stutter around 3500) and I actually took it back but they washed their hands of it all.
So a continuance of some ever so slight running glitches, stumbling missing etc.
Over the last couple weeks I have done my TPS and STPS settings and checked a few days ago as well as throttle sync using carb tune.
Everything was spot on and I went to bed a happy boy.
Went to start the bike yesterday and ran crazy for 5 seconds, fired, misfired, couple of big backfires then just spinning up the starter. No ignition.
What I've done since then:-
Fully recharge of battery - all ok
Took out brand new filter/pump and checked it over. Everything seems A ok except I noticed a hairline crack in the black plastic housing that covers the two electrical wires on the pump. I figured as this whole thing is soaked in petrol then the crack would not be of any significance as it's just a cover.
Filter and teabag were spotless.
Rechecked TPS setting -1100 to approx 4500
Rechecked STPS min setting - 800 to approx 2500
Pulled and checked (with m/meter) every fuse - all ok
Tested the sidestand switch. Reading with stand UP should be .4V to .6V. My reading was .5V
Reading with side stand DOWN should be no more than 1.4V. My reading was nothing.
So I may have a sidestand switch fault. (I wonder if the shop even replaced it as it was routed tightly behind some other wires so I doubt they would have tucked it in behind some wiring that I could barely get it out from behind)
Question at this stage - if I attempt to start the bike with the sidestand up should the bike start even though there may be an error with the down position? Or can I put a wire across and do without a sidestand switch while I try to sort this?
Tested the clutch switch. Test was ok. Also ut a wire between the clutch switch outlets and starter spun up ok but no start or even a resemblance of firing.
Put a spark plug in No 1 lead and then No 4 lead and grounded to frame. There was spark but it didn't look overly impressive.
Pulled all the plugs for a look and clean. None sooty. In fact they looked a little wet if anything.
Dropped a little petrol in cylinder 3 and 4 to see if it would fire up. Nothing.
This leads me to believe I have a ignition problem!!
Removed air filter and sprayed in some "aerostart". Nothing.
Watched as the vaporised aerostart disappeared into the throttle bodies. Nothing.
Took the earth wire off and cleaned. It was basically spotless to start.
Several months ago I removed the pairs.
I have recently replaced all the vac lines including T pieces.
Fuel pump is priming. Yesterday for some stupid reason I turned on the key in the process of removing the tank and watched as fuel pissed all over my sidecover on the ground. Would have been at least 280 mls.

Noticed I have F1 error. I wired across circuit block near the battery and I have codes for a TPS error and STPS error.
Question - Would these errors stop the bike from starting? Can I clear the errors?

What now?
Im getting desperate.

[grog]

BJ, wish i could help. I know how long youve been struggling with your bike. I know you have plenty of others to ride but 14 is supposed to be ultra reliable, yours is ultra pain in arse. I dont have answers, sorry mate. You have more patience than me, i wouldve sold it by now.

[Mick_J]

If the bike wont ever fire when you spray dampstart (aerostart) in the airbox then you have to investigate an ignition problem, it should have at least coughed a couple of times.

[Andre]

Put a spark plug in No 1 lead and then No 4 lead and grounded to frame. There was spark but it didn't look overly impressive.

Check primary and secondary coil resistance. Check Check primary coil PEAK(!) voltage but check power supply for coils first.

Noticed I have F1 error. I wired across circuit block near the battery and I have codes for a TPS error and STPS error.
Question - Would these errors stop the bike from starting? Can I clear the errors?

Should not prevent start and run. Errors clear automatically when you turn the ignition off.

Yesterday for some stupid reason I turned on the key in the process of removing the tank and watched as fuel pissed all over my sidecover on the ground. Would have been at least 280 mls.

Would have been a good opportunity to check flow and pressure. Or done already?

Question at this stage - if I attempt to start the bike with the sidestand up should the bike start even though there may be an error with the down position? Or can I put a wire across and do without a sidestand switch while I try to sort this?

If it checks out ok in the up position it should start.
As you have fuel pump prime and see sparks sidestand, TOS, Kill-switch are working.

[Blubber]

On the new fuel pump;
Does it also have a new pressure regulator?
Please check if that is seated correctly with the o-ring in place.

Sounds like you have a fuel pressure to check... whilst you are it...might as well check the flow.


Even with your error codes... it should enter limb mode and get you home. Fuel pressure doesnt have a sensor.

Other option: clean the electrical part of you ignition switch. If did wonders for my ghost error or starting issues.

[Blubber]

And... stick with the 14.
It is something small which prevents you from starting it.
Might be as daft as a loose ground wire or a fuse.

So...hang in there 

[DP1400]

BJ - Have you tried new HT leads & plug caps? Suzuki leads are notorious for failing over time. Nip off 5-10mm of each lead at the plug end, it may make a difference.

Good luck with it.

[Globalrider]

Put on your white coat - it will then start!!!! I had a computer that was giving me grief and I used to build them !! - so took it in and the stupid thing fired up - white coat syndrome!!
Best of luck you find the problem
Stan

[BJ]

What gives!
After reading a few posts last night I decided to remove the plugs and put in some older ones.
Side stand up , the f*#@ing fired up straight away!
I took it up the road an it ran like shite, stuttering etc but at least is started and was idling ok.
Back home and it restarted on the side stand ok so I guess the switch must be ok?
I'm about to drop in some new plugs and trim the plug leads.
Im also wondering about a bad batch of fuel as I generally use the local station and I took my GS to the shop yesterday and it started running like shite as well but seemed to be ok by the time I got home.
I'm feeling a little cursed at present.
I'm glad I have some progress on the 14. I was thinking yesterday I would not even sell it for parts but rather take to it with a length of pipe and basically just destroy the blood thing. Sooo frustrating.

[DP1400]

Easy to lose track of the real reason for a problem in a situation like this. So, think basics. If the bike was running ok before, but was subjected to a long spell of not being used, then its very likely that its either stale fuel or ignition system.
As said before, trim back your HT leads or replace, drain and replace stale fuel, check your air filter.
It'll end up being something relatively simple i'll bet!

[BJ]

So, I replaced the plugs and trimmed the plug leads.
Took it for a spin and it ran very smoothly.
About 5km out I got a FI error which was C31, gear position sensor.
Never had an error come up before and now have had 3 in 2 days.
Got home, side cover off, sprocket cover off, manual out and test Gear P/S.
Test is ok.
Maybe I moved something to do with Gear P/S when I tested and removed the sidestand switch.
No errors on startup.
Went out for another test ride. I think it is running the best it ever has.
TOUCH A LOT OF WOOD after saying that.
I have some very long steep hills where I live so they are a good test by going up in a higher gear with lots of throttle.
No errors while out. No stuttering at all.
I moved my trusty length of pipe to the back of my container. Might not need it after all.
Still has me stumped why it would not even come close to firing yesterday.
When I pulled yesterdays plugs this morning they were wet looking and there was no soot on them.
I'm wondering if it could have been the battery as it was on the charger all night before today's start.
It didn't seem to be lacking as it was still allowing the starter to turnover at what I would call a normal speed though it was labouring a little by the end of the day with no start.
Let's hope that's the end of it.
Thanks for the replies.

[KiwiCol]

Glad you have a result - of sorts.  Not really an answer as to why it wouldn't run, but it's going now. 

Here's a thought, after a few runs - assuming it's all good again, how about swapping back in the original plugs & see how she reacts?  They may be fine or dead.

[BJ]

Was thinking I would do exactly that.

[Blubber]

Not starting inside stand ...
Starting on  center stand...

Raises the following question ;

Is your "tip over sensor" to sensitive ?