Not Starting!

[KiwiCol]

How'd ya go then?  Find anything?

[Cursed]

Only had a short amount of time to have a look last night so didnt really get to check things over too much.

Gave it another go at starting it, same thing...

Would spin over, but not start. The backfire was only happening when I let off the starter (not every time, just after a few attempts) - I'm wondering if the battery is a bit knackered, I did have a battery jump pack connected up to it but I suppose if the battery is dud the jump pack would make no difference.

The spark plugs seemed to be getting wetter now and i'm getting a stronger fuel smell from the exhaust.

Then it gets weird.... Turned off the bike, covered it up, tidied up the garage, went to bed. Had to pop into the garage this morning, open the door and it absolutely stunk of fuel, go out to find a puddle of fuel under the bike. This hose had split around the outlet from the fuel pump (is this the pressure release back into the tank from pressure regulator?):



It definitely wasn't split last night when I put the bike away so i'm a bit confused with what's gone on there!

If anyone knows the ID & OD of this hose off the top of their head it would be very helpful!

I've pulled the tank off for now and that's how it'll have to stay until Wednesday (It's my wifes birthday tonight so wont be pushing my luck!) - I've got a new battery arriving today so i'll throw that in Wednesday too.

[seth]

The hose you have highlighted is the low pressure gravity feed from the back of the tank to the fuel pump via the teabag filter.
Fit an inline filter where it has spilt save getting a new hose (I'm not sure of the ID and OD of this hose but is standard fuel pipe you'd get from any auto parts place).
The fuel pressure regulator releases straight back into the tank.

[Cursed]

The hose you have highlighted is the low pressure gravity feed from the back of the tank to the fuel pump via the teabag filter.
Fit an inline filter where it has spilt save getting a new hose (I'm not sure of the ID and OD of this hose but is standard fuel pipe you'd get from any auto parts place).
The fuel pressure regulator releases straight back into the tank.

Thanks Seth, your help is really appreciated on this!

[seth]

No worries buddy I try to help when I can as much as I can .
This thread gives info on low pressure side extra external filter and hose sizes
http://gsx1400owners.org/forum/index.php?topic=2212.0

[Cursed]

Hose fixed and cleaned the pump and tank out.

Checked the injectors today, plumbed up some cleaner to them under pressure and used a battery to put power to them to operate them.. look to be working fine, no blockage.

After going through everything today...

- Fuel pump is pumping
- Injectors aren't blocked
- Fuel is definitely getting to the injectors

I'm now not convinced I'm getting a strong enough spark, going start with some new spark plugs and see what happens.

A friend has a GSX and has offered to potentially lend me parts to try out so if the spark plugs don't work I'll borrow his coils and see if that improves anything

[seth]

It might not be starting yet but you are eliminating lots of possible causes.
The coil swop is a good next step just keep going through it and I'm sure you'll get there .

[Blubber]

Just had a brain fart which might help...or not. Sharing is caring and the such...

The 14 has a tip over sensor.

I remember reading someone placed it upside down.... Obviously the bike would start.

Can't remember the symptoms but the outcome was the same.

[KiwiCol]

Good thinking Blubber!   Could well be that.

[seth]

The tip over sensor it located next to the reg/rec on the front of the rear mudguard below the battery .
I had problems on my old k2 with a dodgy connector between it and the rest if the loom.
Good thinking blubber.

[GSX3]

Had a similar problem yesterday with mine after 5 week lay up. Turned out to be the clutch lever switch. Much fiddling and Inox spray did the trick.

[grog]

Good stuff Inox, get some of their other, Lanox, will stop future probs.

[Notty]

Just had a brain fart which might help...or not. Sharing is caring and the such...

The 14 has a tip over sensor.

I remember reading someone placed it upside down.... Obviously the bike would start.

Can't remember the symptoms but the outcome was the same.

they are fitted upside down for our upside down friends !!

[Cursed]

New spark plugs, no change in starting!

Just had a brain fart which might help...or not. Sharing is caring and the such...

The 14 has a tip over sensor.

I remember reading someone placed it upside down.... Obviously the bike would start.

Can't remember the symptoms but the outcome was the same.

Would this not cut the starter all together?

-------------------

With the fuel hose off, when I turn the ignition on it pumps an amount of fuel out. When I turn the bike over with the hose off it doesn't seem to be pumping much, I don't know if that's to be expected but it doesn't seem right!

I have been contacted with a suggestion that it could be the o-ring being damaged in the base of the fuel pump causing these symptoms as the pressure wont build up properly - If anyone has the dimensions of the o-ring so I can get one (cheaper than Suzuki preferably!) that would be appreciated!

[mlivkovich]

Few days ago I had a problem with fuel pressure regulator rubber seal, it was leaking and fuel pressure was too low for proper engine running (loss of power, jerking in low rpms). Seal dimensions: OD 14mm, ID 8mm, thickness 3mm. Both seals, on pressure regulator and pump to filter housing are same dimensions.