Bike won't start after winter storage (even with new battery) | Page 6 | GTAMotorcycle.com

Bike won't start after winter storage (even with new battery)

Brian P said:
Was that initial 5 minute ride done with no coolant in the cooling system? I'm not talking about the overflow bottle - I'm talking about what's in the radiator underneath the radiator cap.

Does the engine sound like it is spinning over freely - no compression?

If there was NO coolant in the cooling system then you lunched the engine by running it under load without coolant, and it's now not starting because it has no compression.

Why did it have no coolant in the cooling system?
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sorry it had coolant in rad when i did the flush. just the res was empty.
 
PrivatePilot said:
This is why the earlier diagnostic info I posted earlier is so essential. Does it have spark? Does it have air? Does it have fuel?

Based on everything I’ve read so far with regards to follow ups since then, the only one that appears to now vaguely have an answer as of your response is ....fuel.

Has the air filter been pulled to check that there isn’t an massive rats nest in there clogging the intake? Has a spark plug wire been pulled to check that there’s actually spark?

Until then everybody is grasping at straws.
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checked fuel pump pressure. everything good. its got compression and pulled air box everything looks good.
 
Brian P said:
If the spark plug is out, the next step is to plug it into the coil/cap and lean the shell of the spark plug (metal) against a metal part of the engine in a position where the spark plug gap can be viewed, and crank it over to see if the spark plug is sparking. If the plug is soaked with fuel, it may be fouled (and thus not sparking).
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plug is sparking also.

had a guy who works on bikes come check it out. He said ECU is most likely fried from jump starting it so much from a dead battery.
 
if you do actually have fuel delivery, spark and sufficient crank speed
the ECM is not your problem

I'd suggest you drain the oil into a clean container and have a look
compression test would be suggested as well but guessing you don't have the tooling for that
 
You could check an injector for fuel spray, if it is spraying fuel then the ECM is working.
Checking right at the injector would be more appropriate then just fuel pressure in this case.


edit: On looking at the manual I don't think you can do a visual check of the injector easy if at all,
and I think you would need a scope to check the injector for an electrical power signal.
 
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vlocka said:
yes we checked injectors this morning also. it was spraying.


On a positive note im learning a lot.
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That's awesome that you could see the injector work, cool eh!
imho it suggests that the ECM is functioning (y) making the solenoid valve open is the job of the ECM
 
If you have spark, and fuel, and compression, then the ECU is functioning.

It may not be delivering the *correct* amount of fuel ... but these things don't just reprogram themselves.

Sensor out of whack.
 
Brian P said:
If you have spark, and fuel, and compression, then the ECU is functioning.

It may not be delivering the *correct* amount of fuel ... but these things don't just reprogram themselves.

Sensor out of whack.
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I just went to go start it and see if the new spark plugs had any gas on them. NOPE.
bone dry.
 
Even if one cylinder is failing that might kill it, you need to be thorough.
 
If it is as easy as this to pull both injectors and watch them spray on every second stroke, I would doubt fuel delivery is the issue.
injector.jpg
 
Big revelation. As going through my rear cowl found a TFI sensor with ripped cable. Google shows it's a aftermarket fuel EI
 
lol I think maybe you found a fault. (y)

but why did the wire over-heat :unsure: and where did the coolant go
you sure there was not a big cloud of white smoke behind your bike for a while?
 
I dunno if I like the mechanic that decided you needed a new ECU, but couldn't find that thing in the bike.

Of course, I don't know exactly what they said...
 
Trials said:
lol I think maybe you found a fault. (y)

but why did the wire over-heat :unsure: and where did the coolant go
you sure there was not a big cloud of white smoke behind your bike for a while?
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the wire didn't over heat thats electrical tape residue stuck to the side.
When the rear tire got stuck, im thinking the cable was loose and got caught onto something and that snap noise was this cable when the tow truck driver was pushing it.

now i need to know where it snapped off from on the harness and reconnect it.

looking at techlusons install instructions it says to connect to factory fuel injectors connectors. I can't find online any diagram of the bike harness. if anyone has any idea where i can get one let me know.
 
vlocka said:
.... I can't find online any diagram of the bike harness. if anyone has any idea where i can get one let me know.
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Thought I seen that in the manual.
A whole series of numbered connections if I recall correctly without pulling it up again.
or look for more sticky residue ;)
 
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