Early M600 and E10 fuel

Nickj · 22-06-2024, 10:18 AM

I think that they're a little float sensors and not really a repairable item.
You could do a fuel out, fuel in test to see if it is the sensor or wiring.
I'd put a multimeter across the sensor out wires with a full tank then after a reasonable run around drain what remains and measure again, if it's the same then it's maybe naff.
You'd still need to check the wires from the sensor to connecter, the connecter itself and the wiring on through the loom.
Else it's replace and I don't see any OEM parts that are cheap! It might be worth getting an alrady broken one to see if it's possible though I suspect dissaembly would be a bit destructive!

Do you get to any of the Cotswold biker pub runs? All local and usually lots of eye candy to drool over.

motomartin11 · 24-06-2024, 01:59 PM

My M750 has always had similar small throttle opening issues and despite many attempts I've never been able to cure it.
It loves rolling up and down hills, in and out of bends but try to commute or even maintain 30-40 mph in traffic ( which is most roads around where I live) and it's a chore.
I'm gradually replacing the fuel hoses and am shortly going to try changing the pilot jets.
Recently its been sooting up the plugs. Yesterday I took it out for a blast and thought the plugs had fouled again but I persevered and as soon as I got out of town it ran very well but then played up again when I hit traffic on the way back.
I always use super-unleaded fuel and have tried Esso and BP but this seems to make no difference.
Similar to your 600 my low fuel level sensor had never worked and in fact the wiring seemed to have been removed. My mate repaired mine by fitting a used unit and wiring it in separately . I agree it's a pain without it as mine does about 45 mpg and after about 90 miles I had to start looking for fuel just in case.

22-06-2024, 10:18 AM	#1
Nickj Too much time on my hands member Join Date: Jun 2007 Location: Forest Of Dean Bike: S2r Posts: 3,203	I think that they're a little float sensors and not really a repairable item. You could do a fuel out, fuel in test to see if it is the sensor or wiring. I'd put a multimeter across the sensor out wires with a full tank then after a reasonable run around drain what remains and measure again, if it's the same then it's maybe naff. You'd still need to check the wires from the sensor to connecter, the connecter itself and the wiring on through the loom. Else it's replace and I don't see any OEM parts that are cheap! It might be worth getting an alrady broken one to see if it's possible though I suspect dissaembly would be a bit destructive! Do you get to any of the Cotswold biker pub runs? All local and usually lots of eye candy to drool over. __________________ "The final measure of any rider's skill is the inverse ratio of his preferred Traveling Speed to the number of bad scars on his body." Song of the sausage creature

24-06-2024, 01:59 PM	#2
motomartin11 Registered User Join Date: Sep 2010 Location: stourbridge Bike: M750 Posts: 353	My M750 has always had similar small throttle opening issues and despite many attempts I've never been able to cure it. It loves rolling up and down hills, in and out of bends but try to commute or even maintain 30-40 mph in traffic ( which is most roads around where I live) and it's a chore. I'm gradually replacing the fuel hoses and am shortly going to try changing the pilot jets. Recently its been sooting up the plugs. Yesterday I took it out for a blast and thought the plugs had fouled again but I persevered and as soon as I got out of town it ran very well but then played up again when I hit traffic on the way back. I always use super-unleaded fuel and have tried Esso and BP but this seems to make no difference. Similar to your 600 my low fuel level sensor had never worked and in fact the wiring seemed to have been removed. My mate repaired mine by fitting a used unit and wiring it in separately . I agree it's a pain without it as mine does about 45 mpg and after about 90 miles I had to start looking for fuel just in case.