Devilbiss excell model exgh5010-2 Generator

M

Mark H_NO

Well-Known Member
I've had this generator for a few years, it's worked ok, but the carb leaks. I used a pressure tester, and from 5 lbs, you can see it slowly drop. I cleaned the carb, needle, seat, no change. It was also hunting some, not settling to a steady RPM. At some point in the past, I used a cable tie to put more tension on the lever that operates the throttle, and had it settled at 3600 rpm with decent voltage. I got a new carb, and it fires up and runs, but hunts constantly, reving up, dropping down, and repeating. I've searched for manuals, but not found one. I found a bunch of listings for Devilbis, but no manual.

Can anyone point me to a guide on how to adjust this governor? A lever comes out of the engine, a spring attaches to another lever, that goes up to the throttle. You can connect the spring to many points, to change the tension.

Thanks in advance.

Mark
 
Surging like you describing is a lean burn issue most times not normally a governor issue. To verify hold the throttle vane steady if it holds the speed steady then it can be the governor; otherwise, it is fuel mixture problem.
 
It's hard to hold it steady, but it seems the engine speed is steadier. You can see the lever moving a lot. It did it on the original carb, but less, but I did have that cable tie adding tension. When I had the original carb out and was testing, I noticed that the plastic 90degree fitting was leaking, and don't see how to fix that.
 
I took off the cable tie, and set the spring back in the middle, and it's going around 1400 rpm to 2000, voltage going 90-140. Should I try and richen? It's a new carb, new fuel lines and filter from tank to carb, and flows freely.
 
DeVilbiss did not build the generator, they just sold the namesake to a Chinese company. There are many generators out there on the market that are "private label branded" but are similar.

A portable generator is supposed to run at a steady 3600 RPM to provide reliable steady voltage output. They do not have a base idle like a mower engine.

New carburetors are clones of an original and it is a challenge to get them working correctly for some applications.

We need the numbers off of the engine ID plate to better understand what is on this generator.

James Condon on You Tube has lots of good videos about troubleshooting and dealing with generator carburetors.
 
Motor is Briggs, model 19E412, type 1131e1, code 990428yd. BTW, I messed up the RPM's earlier, multiply by 2. 2800-4000. I know it should run at 3600, that's 60hz. I've had good luck with replacement carbs. This may need a little tweaking.
 
You must log in or register to reply here.
Back
Top