S2r 800 whont start

31-07-2018, 10:43 PM

Hi every one .im new to the forum. I've had my s2r 800 for 4 years and in that time it hasn't had one problem its been amazing. In till this weekend. When it just died , , like it had run out off fuel. It fired up again then died. There's fuel and the pump working. There's no spark and the plug s are dry it just turns over

mickj · 01-08-2018, 09:53 AM

Welcome to the forum Bryan, I don't know much about monsters but if your plugs are dry there is no petrol getting through to the cylinder. There is a known fault with Suzuki GSX 1400 fuel pumps in that the high pressure bypass valve becomes detached within the fuel tank so the pump spins but there is no pressures. Take a look at that as a starting point, if not it could be your injectors.

Dave G · 01-08-2018, 10:29 AM

Does the pump prime?

If so and you say there’s seems to be no fuel getting through I’d hazard a guess that the fuel pump has become disconnected from the pipes inside the tank, I think this may be a common problem but I’m writing this while trying to remember where I read all the info so just going on memory.
You’ll need to remove the tank and the baseplate the internal fuel pump is mounted to and check the hoses are still secure, they can separate and just need to be fixed back together.

damien666 · 01-08-2018, 10:57 AM

Fuel filter?
Breather blocked ( vacumning)?

Dave G · 01-08-2018, 11:56 AM

The fuel filter is attached to the pump inside the tank, this is usually the bit that comes adrift BTW.

utopia · 01-08-2018, 12:57 PM

No spark though, you say.
Is that on both cylinders or just the one.

01-08-2018, 01:51 PM

It's on both. So I assume there's no power going to the spark or injectors

01-08-2018, 01:53 PM

Thanks for all you're help

utopia · 01-08-2018, 03:34 PM

Excuse the simple question but have you checked the fuses ?
If its like my carby 750 there will be an oblong fuse box beneath the seat.
To start with, I'd be looking for a blown fuse on the ignition circuit.
If you find one, with any luck there will be a spare in an unused socket in the fuse box.
Replacing the fuse may not address the underlying cause of it blowing in the first place and so it may blow again, but its worth a try.

31-07-2018, 10:43 PM	#1
bryan bennett Guest Posts: n/a	S2r 800 whont start Hi every one .im new to the forum. I've had my s2r 800 for 4 years and in that time it hasn't had one problem its been amazing. In till this weekend. When it just died , , like it had run out off fuel. It fired up again then died. There's fuel and the pump working. There's no spark and the plug s are dry it just turns over

01-08-2018, 09:53 AM	#2
mickj Registered User Join Date: Jun 2018 Location: Clevedon Bike: M1200s Posts: 565	Welcome to the forum Bryan, I don't know much about monsters but if your plugs are dry there is no petrol getting through to the cylinder. There is a known fault with Suzuki GSX 1400 fuel pumps in that the high pressure bypass valve becomes detached within the fuel tank so the pump spins but there is no pressures. Take a look at that as a starting point, if not it could be your injectors. __________________ Keep the rubber side down. Mick

01-08-2018, 10:29 AM	#3
Dave G Imagineer Join Date: Feb 2005 Location: West Kilbride Bike: S2r Posts: 1,003	Does the pump prime? If so and you say there’s seems to be no fuel getting through I’d hazard a guess that the fuel pump has become disconnected from the pipes inside the tank, I think this may be a common problem but I’m writing this while trying to remember where I read all the info so just going on memory. You’ll need to remove the tank and the baseplate the internal fuel pump is mounted to and check the hoses are still secure, they can separate and just need to be fixed back together. __________________ "One machine can do the work of fifty ordinary men. No machine can do the work of one extraordinary man" -Elbert Hubbard

01-08-2018, 11:56 AM	#5
Dave G Imagineer Join Date: Feb 2005 Location: West Kilbride Bike: S2r Posts: 1,003	The fuel filter is attached to the pump inside the tank, this is usually the bit that comes adrift BTW. __________________ "One machine can do the work of fifty ordinary men. No machine can do the work of one extraordinary man" -Elbert Hubbard

01-08-2018, 10:57 AM	#4
damien666 Registered User Join Date: Dec 2010 Location: Leeds, West-Yorks Bike: S4Rs Posts: 497	Fuel filter? Breather blocked ( vacumning)?

01-08-2018, 12:57 PM	#6
utopia No turn left unstoned Join Date: Jun 2010 Location: leicester Bike: M750 Posts: 4,561	No spark though, you say. Is that on both cylinders or just the one.

01-08-2018, 01:51 PM	#7
bryan bennett Guest Posts: n/a	It's on both. So I assume there's no power going to the spark or injectors

01-08-2018, 01:53 PM	#8
bryan bennett Guest Posts: n/a	Thanks for all you're help

01-08-2018, 03:34 PM	#9
utopia No turn left unstoned Join Date: Jun 2010 Location: leicester Bike: M750 Posts: 4,561	Excuse the simple question but have you checked the fuses ? If its like my carby 750 there will be an oblong fuse box beneath the seat. To start with, I'd be looking for a blown fuse on the ignition circuit. If you find one, with any luck there will be a spare in an unused socket in the fuse box. Replacing the fuse may not address the underlying cause of it blowing in the first place and so it may blow again, but its worth a try.