HELP!! Can't run it. URGENT!

[PiotrK100]

Here is a story:
Today should be a big day because after couple of months I put all together and before I start doing new speedo and other electrical stuff I wanted to run the engine, but unfortunately it wont start.

- starter turns
- there is a spark on plugs, checked
- have fuel pressure gauge and looks like presure is ok 3-4 atm
- fuel pump works
- dismantle injector and rail and there is a fuel, injectors wet on the end
- injectors were overhauled and checked

Looks to me like there is no signal to to injectors, but that is only a suggestion because all other is ok. Need help because fell stupid in that case. So much work and such a fuck up, can't believe it.

[johnny]

flow chart...

i betts your injectors are stuck closed if they were not properly lubricated when in storage...

j o

[PiotrK100]

Hmmm will try to follow that instruction, first of all will check the ground connection. Any personal idea what that would be?

[johnny]

greetings piotrk100...

your brilliant mind and skilled hands bastardized a motobrick... my personal idea at this point is it could be nearly anything... butts im still saying stuck injectors...

j o

[PiotrK100]

OK so go to my garage now and will stay there as long as it takes to run the engine...may be a sleepless nite :yes

[PiotrK100]

Well, checked the basic issues and still wont work.
Ground is ok. I checked the fuel injector connection with LED and looks like working. Have no idea where to dig.....also because I was dissasebling working brick and all should works.

[johnny]

generally its not the dissembling... its the reassembling that causes whack...

im thinking your gonna need the likes of rbm and ngk to figger out this one unless you buy into my stuck injector theory...

j o

[PiotrK100]

Have no choice will wait for them to figure out. That is a bad day because my new painted and already welded gas tank has another leakage on the corner beneah fuel pump. F..... Will glue it somehow.

[Inge K.]

Good evening, Poland.

About the leaking tank, the area under the fuel pump (also inside the tank) is the first place you must check
if you suspect a leak.
A leak is usually caused by corrosion when water is present inside the tank when the bike is stored, water sink
to the lowest point as it have higher density than gasoline.

About start problems....if you have done a lot of starting attempts, I would guess that the plugs is wet fouled
then you need to dry them...preferably on a open flame......with drowned plugs the bike never gonna start.

[PiotrK100]

Hi, Hi glad to hear from you. Reagarding the gas tank, I already welded some spots before painting and now all I can do is to glue with proffessional aluminium glue. But that is not the case.
I checked spark plugs (2 of them) and were normally sparkling when outside and also were dry. I can dry them anyway as you suggested but engine did not even fire for one stroke. Nothing at all just starter turn voice. I'm a little bit confused because all I did check simce to be ok. But of course I'm a brick beginner so need to learn a lot. I have new exhaust and I could not hear it.....that is flustarting. :musicboohoo:

[Inge K.]

I checked spark plugs (2 of them) and were normally sparkling when outside and also were dry.

I assume that you have done several starting attempts?? And if the plugs is bone dry, it seems like you
don't getting any fuel to the cylinders.     ...Does the fuel pump run ~1,5 sec after you have released the
starter button?

[PiotrK100]

Yes it does and can he hear very clearly. And the pressure is ok. I mounted aftermarket pressure regulator with gauge (so shows 3-4 which is ok) and than changed for oem as I was thinking that may be a problem, but was not. In can not tell if the plug was bone dry, but did not remains any wetness on the finger when sweep them.

[PiotrK100]

By the way I did attempt so many times that my battery went down. It is allmost new so that takes a dozens attemts.

[Inge K.]

Then you should easily see that the plugs was wet......
Your gauge showing 3-4 something......normal fuel pressure is 2.5 Bar.

I Guess that you was on something in the first thread, about the injectors don't receive a signal.
You can use a screwdriver as a stethoscope and try to listen if the injectors click while turning the starter.
A metod that is easier to judge is ...remove the fuel rail with injectors...check the spray pattern while
pushing the starter.......point away from the bike, have the fire extinguisher ready.

Some have been lucky by only reseating the Jetronic connector a few times....lightly corroded contacts.
Have you done any work on the electrics during the winter?

[PiotrK100]

Ha, injectors have a signal as I did connect LED and checked. And that confuesed me totally. Or that is no a way tom check the signal.....
Case with screwdriver is a good idea but if the injectors have a signal so they should works.

[PiotrK100]

Checking the signal with LED makes me stupid because I was allmost sure that injector have no signal. So, when I do looks thru all that case I see that all is working and engine does not start.....worst scenario I was thinking about when strat up.

[Inge K.]

Still a bit strange that the plugs was dry.....I suggest that you check the spray pattern in the daylight
tomorrow.

.....info added to previous post.
.....you probably gonna need new o-rings for the injectors, they don't like to be moved in and out.

[PiotrK100]

hehe, fireextingusher was all the day next to me!!!! :eek:
Question: if the plugs will be drawn, would the spark goes between electrodes?
If the answer is positive first of all will take all spark plugs and heat them on fire.
Than will check the spray pattern...if any :hehehe

Any other suggestions???? I'm openminded.

[Inge K.]

When the plugs is wet of fuel the current will travel to ground through the wet carbon is this gives less
resistance than jumping a spark over the gap.
It can look OK when testing for spark on the outside of the engine, but when compression is added the
"resistance" over the gap is much higher.

[PiotrK100]

Than will start from plugs on the beginning :yes
Do not relay to much hope in that case but because anything can be a good option will do that at first and than....checked spray pattern. The most important things is that I'm not alone with my problem ........
Tomorrow will check all the new issues and hopefully will find a solution and hear my new exhaust!!!!!!!

[The Mighty Gryphon]

Are you sure the spark plug wires are connected to the correct coils and cylinders? 

Assuming the compression is good, there is spark, and the injectors are providing fuel, the only thing missing is the spark timing to at least get a cough or two out of the engine.

[pallum]

I've gotten the same symptoms when the Motronic/Jetronic brain plug needs to be reseated.

[PiotrK100]

There was no  cough from the engine at all!!! Silence. Will check coils connection anyway. Also computer connection was moved few times...

[The Mighty Gryphon]

There was a thread on another forum recently where two of the plug wires were connected to the wrong coils.  Engine only fired on two cylinders.  Connecting to wrong coil will put the timing way off.  Worth checking since you had things apart.

[PiotrK100]

I checked all again, coils and connection and all is ok. Did check plugs and were dry, bone dry so no issue about flooded plugs. I take off the injector with the rail and start the engine to see the injection pattern and.......nothing, nothing, nothing which is that no signal on the injectors to open!! THat is the 100% diagnose and now must find out why because engine was working problemless before dimantling. All electronic was stored dry. I drop few drops of fule thru injector holes to the intake and after start the engine cough few times. So lack of fuel.
Now I do desperately need a help because have no idea what to do, I would bet on something stupid and easy that I may forgotten but all connection are ok. I checked also Jetronic connection and clean them, so nothing happen.