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08- not getting fuel

3K views 22 replies 6 participants last post by  UNCLEJOHN 
#1 ·
Talked with guy today who said couldnt keep bike running unless poured gas in manifold. Says chjecked fuel pump . Lean sensor. Sensor on front lower motor ? Bike was apart- front end damage. Any thing i can tell him to check ?
 
#2 ·
Fuel regulator not getting vacuum? Does the fuel pump run when the key is turned on? May have to have one of the super techs walk through the trouble-shooting process...

:thumbup:
 
#3 ·
Is he getting a FI/engine light? If the fuel pump is running at key turn on and he's not getting a FI light after its running, his ECM may have an issue. You said it won't run, but does it start normally and dies, or does he have to pour gas in to start it too? What year is it and what all did they replace in the crash? We know it's not the BAS or it wouldn't do anything.
 
#4 ·
going to look at tomorrow . will get more specifics. not sure on f1 lite. to ck if on you put in neutral - kickstand down - hold throttle all the way open-crank till flashes code- count them- short /long- number tells you problem ?? its an 08 . has to pour gas in it to get to run. when stop pouring it dies. fuel pump working. will get back . probably should have waited
 
#5 ·
If bike had front end damage it could point to the Bank Angle Sensor.
 
#6 ·
going to look at tomorrow . will get more specifics. not sure on f1 lite. to ck if on you put in neutral - kickstand down - hold throttle all the way open-crank till flashes code- count them- short /long- number tells you problem ?? its an 08 . has to pour gas in it to get to run. when stop pouring it dies. fuel pump working. will get back . probably should have waited
If it wont start when you crank it without pouring gas in it, then just crank it on the sidestand in neutral for more than 10 seconds and see if it will flash a code. If it starts without the liquid gas and then dies quickly, getting a code out of it might be tough. As usual, I would confirm the condition of the C25 junction connector. An issue with it could kill the injectors, their power comes from it as well as everything else in the FI system. Another thing to do, is put a voltmeter on the fuel pump's connector and get it started and watch the meter. As soon as the engine starts, the ECM should be running the fuel pump, this will be seen on the connector as full battery power. If you don't see any power there, the ECM is sensing a problem or the junction connector is failing to maintain the system power to everything.
 
#7 ·
LOOKED AT TODAY. CRANKED IT BUT NO CODE. HE HAD/HAS MOST PLUGS DISCONNECTED.HAD TO PLUG IN IGNITION TO GET IT TO CRANK- SAID NEW CRANK/BANK/CAN SENSOR. HE HAS MANIFOLD LOOSE :shock: READY TO COME OUT TO CHANGE GASKET. MECHANIC AT HONDA SHOP SAID BIKE SAT FOR 2 YEARS SO MITE BE VALVES :shrug::shrug:WTF ! PULLED HEAD OF CHECKED VALVES ???? SAID CHECKED INJECTORS - POWER TO EACH (NIODE LITE ?? MITE BE SPELLING WRONG) HAS HAD BIKE SINCE LATE 2010 - TIRED OF IT - SEEMS ALL PARTS THERE AND REST BIKE LOOKS OK. NEW FORKS -TREE-STAY PLASTICS ETC. THINK I COULD PART OUT BIKE IF HAD TO TO GET MY MONEY BACK. JUST NOT SURE IF WANT TO GO THRU ALL THE TROUBLE
 
#8 ·
LOOKED AT TODAY. CRANKED IT BUT NO CODE. HE HAD/HAS MOST PLUGS DISCONNECTED.HAD TO PLUG IN IGNITION TO GET IT TO CRANK- SAID NEW CRANK/BANK/CAN SENSOR. HE HAS MANIFOLD LOOSE :shock: READY TO COME OUT TO CHANGE GASKET. MECHANIC AT HONDA SHOP SAID BIKE SAT FOR 2 YEARS SO MITE BE VALVES :shrug::shrug:WTF ! PULLED HEAD OF CHECKED VALVES ???? SAID CHECKED INJECTORS - POWER TO EACH (NIODE LITE ?? MITE BE SPELLING WRONG) HAS HAD BIKE SINCE LATE 2010 - TIRED OF IT - SEEMS ALL PARTS THERE AND REST BIKE LOOKS OK. NEW FORKS -TREE-STAY PLASTICS ETC. THINK I COULD PART OUT BIKE IF HAD TO TO GET MY MONEY BACK. JUST NOT SURE IF WANT TO GO THRU ALL THE TROUBLE
Ok, why is he changing the manifold gasket? Has a different ECM been tried on it yet? Has anyone looked at C25 yet? Do you get a good FI light and the pump running for a second at key turn on? Since you got no code, the ECM doesn't think anything is wrong. This is confirmed by it not killing the ignition system. The fact that power was found on the injectors means nothing, unless it's while the ECM is running the engine. The ECM puts power on them and the fuel pump for that 1.5 seconds at turn on and then it puts power on them while you are cranking the engine to start, as well as after it starts. The fuel pump power is the easiest to check while testing this. If power is on the injectors while it runs, then either the ECM is failing to ground them, turning them on, or there's a wiring issue between them and the ECM.
 
#9 ·
Uncle in the south!
do you have a current wiring diagram for that model year? If not get a copy and start looking at the basic circuits as techdude has described. You will begin to understand what feeds who and how they interact with components. It sounds to me that techdude is on the right track. Follow his lead.
We all know that we ride a 4 stroke engine under or feet, in my past life as a working man we used the expression to explain what to expect from the engine..... Suck, squeeze, bang and blow!
 
#12 ·
HEADS UP GOING TO BRYSON CITY WEDS. BE BACK FOLLOWING WEDS N GET BIKE ON WEEKEND :excited::bow::bow: :thumbup::thumbup:
 
#13 ·
Any updates? The suspense is killing me!
 
#14 ·
Just picked it up today. Titanium color has new exam in box all parts seem to be there gave me some more off a trike he. Did. Be couple days before I can get. At it
 
#15 ·
Just picked it up today. Titanium color has new exam in box all parts seem to be there gave me some more off a trike he. Did. Be couple days before I can get. At it
Trying to post a picture and videos John took, but my IPad and this site don't play well together. Anyway, he has a coolant leak where the right head chrome pipe goes into the head near the rear. Looks as though the head will have to come off or at least the intake manifold to get it loose and replace the o-ring.

This is the left side, but it's in the same location on the right side.

 
#16 ·
gonna try the intake before head. looks like a bolt with a flange on it that holds it in. job for skinny fingers lol.
 
#18 ·
Yep, single bolt and o-ring to seal the connection. Much easier with the engine out!!!!! Voice of experience......
 
#19 ·
its actuallt a flat washer . close to 1/8 inch thick. can look thru manifold from other side and see where it goes. all i need to do is get a mouse that loves it in air box and train it to push the washer in ;) takes 3/4 days to get for $3.41 part:?
 
#20 ·
its actuallt a flat washer . close to 1/8 inch thick. can look thru manifold from other side and see where it goes. all i need to do is get a mouse that loves it in air box and train it to push the washer in ;) takes 3/4 days to get for $3.41 part:?
What's a flat washer? It should be a rubber o-ring, #91316-MCA-A00 $2.82 it has a fat side and a skinny side. The skinny side goes toward the head and the fat side toward the pipe's shoulder when you slide it onto it.
 
#21 ·
what's a flat washer? It should be a rubber o-ring, #91316-mca-a00 $2.82 it has a fat side and a skinny side. The skinny side goes toward the head and the fat side toward the pipe's shoulder when you slide it onto it.
picture i showed was what was in there ! ??? Maybe he used wrong part. Part i ordered from dealer was # you show. Says seal on fiche not o ring ? See what i get in 3/4 days
 
#22 ·
picture i showed was what was in there ! ??? Maybe he used wrong part. Part i ordered from dealer was # you show. Says seal on fiche not o ring ? See what i get in 3/4 days
Sorry John, I should clarify it more, it's a molded o-ring, so you can't roll it over and install it anyway you want. If you were to cut it, the cross section would be fatter on one side and ramped down toward the other side, wedge shaped. It's important to get the smaller/pointer edge toward the head. I would post a picture of one, but I don't have one handy at the moment.
 
#23 ·
sorry john, i should clarify it more, it's a molded o-ring, so you can't roll it over and install it anyway you want. If you were to cut it, the cross section would be fatter on one side and ramped down toward the other side, wedge shaped. It's important to get the smaller/pointer edge toward the head. I would post a picture of one, but i don't have one handy at the moment.
thanks for info. Not sure if shows on pic in manual. Looked at old one ( in my pocket) where he had pinched almost back to way it should- wont reuse ! As you stated smaller on one side.
 
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