I have an R850GS the bike starts but cuts out when you try to move off. Its a W 2000 reg which has done only 13000 miles. I've only had it two weeks I have a feeling it might be the battery as I suspect it's the original not delivering enough output for the electrical side. Could it be a Lambda sensor problem also?

Take the cables loose from the battery. Clean the cables. Might need a wire brush. Reconnect.

More than likely the carbs need to be removed , taken apart and thoroughly cleaned. Replace fuel filter first. With that many miles, bike has done a lot of sitting in storage.

sidestand lockout switch is sticking...bike thinks that you're trying to ride away with the stand down so it kills the sparks.

note that there is no mention of any fault codes so unless the fault codes are read then fixing by guessing is frustrating and costly

Well, this is an impossible question to answer. There are simply too many variables that one must consider not to mention the unknowns. I've seen the bikes with as much as 75K miles on the bottom end running well. Top ends need freshening up from time to time. Depending on how a person rides the bike has a lot to do with how often this has to be done.

Steve

it could be a bad/dirty earth try going along the wiring loom with a multimeter staring from battery and work your to the headlight

The first thing to do is get a compression check done,as you dont say what miles its got im assuming it has a few, so getting this done will confirm that it aint worn out.yet.

I have a '07 C90T.
I have just replaced my stator. I replaced the reg/rectifier earlier this year. I replaced the battery one year ago in October.

I firmly believe what started the problem. Two guys that I told I didn't need help, but they pressured me to let them help. They hooked a battery backwards to my bike. A lot of people believe that's what shortened the life of the rectifier and stator.

But keep this in mind. The connections for the regulator/rectifier are not waterproof. I had done a lot of rainy riding and I first found a burnt connector on the discharge side of the reg/rect. My mechanic told me I needed to replace the reg/rect so I did but I soldered the wires and made them waterproof. I didn't do this on the stator side of the reg/rect and a few months later, when the bike quit charging again, I found that connector burnt, so I cut it out and soldered and waterproofed it.

Two days after we got back from a 700 mile round trip to Red River, NM, my bike quit charging again. This time though, I have a voltage meter on the bike, so I was aware of the problem before the bike could strand me someplace. Get one of those btw.
When I checked the old stator after I replaced it, I found the stator good but the pulse signal generator bad. It's required that you replace both btw. You have to, they are joined at the grommet.

Ok well, the battery cost $60 last year and I replaced it myself.
The reg/rect cost $140 through my mechanic and I replaced it myself.
Got the stator online for $173 shipped and they advertise a better stator that puts out 20% more power.
Not counting little things like solder, tape, heatshrink and such, I'm out a little less than $375 on my charging system.
I hope it's a done deal.
Again, some think the problems began when the battery was hooked up wrong, but I lean to believe the sub-standard Suzuki connections may have a hand in this.
Hope this helps. . . Joe

its a piagio ,what else do you expect but a honda .