What happens if you leave the key on after shutting down a B6100D?

Carrey

Member
Joined
May 2, 2025
Messages
6
Hey folks, so I was running my B6100D earlier, shut the engine off but forgot to turn the key off, I came back about an hour later, realized the key was still on and I tried to start it, it just cranked and wouldn't fire up. I hit it with some starting fluid in the air cleaner and finally got it going...so I am wondering what actually happens when you leave the key on after stopping the engine? Did I drain something or mess up a component?
 
If I leave the key on, the only thing that happens is the hour meter keeps running. Did you remember to let the glow plugs heat up before trying to start it? That could be why it didnt fire right away.
 
Hey folks, so I was running my B6100D earlier, shut the engine off but forgot to turn the key off, I came back about an hour later, realized the key was still on and I tried to start it, it just cranked and wouldn't fire up. I hit it with some starting fluid in the air cleaner and finally got it going...so I am wondering what actually happens when you leave the key on after stopping the engine? Did I drain something or mess up a component?
Leaving the key on powers the fuel shutoff solenoid so that must be the reason for the drained battery. It likely overheated. Check the battery voltage and solenoid function just to be sure nothing was damaged.
 
Hey folks, so I was running my B6100D earlier, shut the engine off but forgot to turn the key off, I came back about an hour later, realized the key was still on and I tried to start it, it just cranked and wouldn't fire up. I hit it with some starting fluid in the air cleaner and finally got it going...so I am wondering what actually happens when you leave the key on after stopping the engine? Did I drain something or mess up a component?
Leaving the key in the ON position can drain the battery or even flood the engine because it keeps components like the fuel pump and glow plugs activated. It's probably nothing seriuos,but just remember to turn the key off next time. I'm glad to hear it started up with the starting fluid
 
Yeah, I did that exact thing once with my old B6200. I left the key on, and when I got back, the battery was almost dead, and the starter solenoid was super hot. Luckily, a jump start got it going, but I've never left the key in since
 
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change.
Hello, a quick update: I ended up cleaning the carb a bit and checking the fuel lines. After that, it started right up without needing more starting fluid. Seems like leaving the key on might have caused a minor fuel delivery hiccup.
 
Hello, a quick update: I ended up cleaning the carb a bit and checking the fuel lines. After that, it started right up without needing more starting fluid. Seems like leaving the key on might have caused a minor fuel delivery hiccup.
not sure how exactly the entire system works, but I'm guessing it's like leaving your car on with the ignition on, so it might be a strain on the battery. Keep an eye on it just in case.
 
Hey folks, so I was running my B6100D earlier, shut the engine off but forgot to turn the key off, I came back about an hour later, realized the key was still on and I tried to start it, it just cranked and wouldn't fire up. I hit it with some starting fluid in the air cleaner and finally got it going...so I am wondering what actually happens when you leave the key on after stopping the engine? Did I drain something or mess up a component?
Has it been starting okay since then?
 
Hello, a quick update: I ended up cleaning the carb a bit and checking the fuel lines. After that, it started right up without needing more starting fluid. Seems like leaving the key on might have caused a minor fuel delivery hiccup.
Nice job cleaning the carb! That probably got rid of any fuel left behind from having the key on for so long. Fuel pumps can sometimes push extra fuel through which can cause flooding or build-up. Checking the fuel lines was also a good idea. Air bubbles from the pump running too long can mess with fuel flow, but things should be fine now that everything's clear.
 

Latest posts

Back
Top