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I have a Subaru / Husky generator governor issue

I have a Subaru / Husky generator I had to clean the carb do to blockage. When putting it back the governor linkage came off and of course I didn't see where it came off of. I put it where it seemed it should go but when it's started it runs high. ( around 190volts)

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 11 Answers

SOURCE: Coleman generator OHV3000

The carburetor is probably clogged up. Mix a bottle of carburetor cleaner with the gas to see if that would help. Also check/replace the fuel filter.

Posted on Sep 10, 2008

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CarlGehrke
  • 169 Answers

SOURCE: ENGINE OVER SPEEDS WHILE RUNNING

This is almost surely a problem with the governor, check it like this.
Have someone with a finger on the kill switch.
Watch the governor arm while starting the engine, if it does not move almost immediately after starting the engine it is broken.
This is not a simple repair as it involves taking the crankcase apart, you'll have to contact robin/subaru to get a parts list in order to get the right governor spool and weights.
For an experienced technician this is about a 2 hour repair task.

Hope this helped,
Carl

Posted on Dec 03, 2008

mamicheddy
  • 79 Answers

SOURCE: I have an onan 2800 gen that will not charge

If the govenor didn't work that means that you placed the linkage on the carberator the wrong way. This will cause the genset to overspeed and possibly stop the genset from creating voltage. If the genset does not create voltage then you won't have a charger. Fix the linkage first by looking to make sure that the throttle plate is closed before starting genset. Once you start the genset check for voltage.

Posted on May 12, 2009

Rebgagnon
  • 382 Answers

SOURCE: Husky 5000w Generator with a Subaru engin.

Fuel system needs cleaned. Dirt or build up get's in the passages and it can not properly regulate the fuel/air mixture. Being it runs well in choke position I would suspect it is plugged on the idle passage. Sometimes you can add a very small amount of "Seafoam" to the fuel and let it run while slowly moving the lever to the run position and this will clean it out. It is also possible that the fuel tank has a small amount of water in it. Good luck and have a great day.

Posted on Feb 15, 2010

  • 342 Answers

SOURCE: My generator won't put out power. Engine runs

check

avr / brushes if it has them

if not capacitor and diodes on the end of the armature

Posted on Apr 04, 2010

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Unclear when stated that there is a governor issue? I assume you have a Robin/Subaru 7.5 H.P. engine model EY280YD2510 with erratic behavior leading up to stalling out when a load is applied or the generator is at no load status after several minutes of run time?. Couple of things to check would be starting with the fuel system. Is there stale gas in the fuel tank? Have you verified fuel flow from tank? Is the fuel cutoff valve free of debris? Is the carb fuel bowel been removed and inspected for varnish? Is the air cleaner clean? Next, Ignition system. Have you inspected the flywheel for excessive rust? Have you reset the air gap on the ignition module? Does the on/off switch work (measured with a meter for continuity?) Any visual signs of damage with all wiring or the ignition module itself? I once thought I had an governor issue where the issue ended up being that the flywheel was corroded to the point that once the engine was fully warmed up the control module would contact the rust build up on the flywheel causing engine surges no matter what the load was on the generator, and at times would stall the engine. Clean flywheel off if necessary and reset the air gap on the ignition module. If that fails then inspect the governor spring (the top spring on the carb. linkage assembly) for excessive rust that will change the tension on the governor arm.Replace if in doubt! When doing all this inspecting ensure you have fresh fuel, oil, air filter, spark plug gapped correctly, and ignition module that has been tested as sound! These Robin engines are smooth running heavy duty engine that will perform for many years if taken care of. Good luck!

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If the gen. worked previously and has been setting, it is possible the carb. is gummed up with varnish or there is something interfering with the governor that's built internally in the engine. Check the governor linkage for anything interfering, i.e. damaged, mud dobber nest around the shaft coming out of engine block, etc. The arm and linkage is connected to the carb. and should be somewhat free moving with slight resistance from the springs. Hope this helps some

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Sounds like you have a problem with the governor. You didn't say what make/model you have so hard to diagnose. Check the linkage and springs from the carb to the governor; something may be hooked up wrong. Depending on your mower, you may need a rebuild kit for your carburetor. If one of the diaphragms is cracked or weak or has a hole in it, your engine will surge, as well. Hope this helps. Best of luck to you.
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You should do an inspection of the governor linkage and spring before start, it should be in full fuel and move easily by hand.



Governors tend to not just go bad or even out of adjustment.

Is your real problem a clogged carb?

This would leave the Governor in full fuel and still starving for fuel.

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r/
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I've never been a big fan of the 180 OH family of engines in these things, but here goes.
1 - If the engine will stay running while it surges, close the choke a little at a time and see if it settles down. If it does, there is something amiss in the carb. The carbs on these engines are very picky about tiny bits of dirt. The good news is that they are fairly simple to take apart and clean, the bad news is that lots of the parts are plastic and break easily. At least they aren't too expensive.

2 - I've seen 2 ways to adjust the governed speed on these engines; a spring that connects to the governor arm at one end and a tab bent up from the sheet metal that mounts on top of the engine at the other - bend the tab so the spring is tighter to speed the engine up, and (b) a jam nut and screw mechanism that presses against a lever that pulls on a spring that connects to the governor arm - screw the screw in tighter to raise the engine speed.
Note that in either case the mechanism adjusts the tension in a spring that pulls against the governor arm, this is helpful in finding out where to make the adjustment.
Here in the US we want our 2 pole generators like this to run at 3750 rpm at no load so that we get very close to 3600 rpm at load. If you're using a DMM to measure the output of the generator in Hz, you want 61.5 at no load.

If nothing you can do with the choke makes the surge go away, you might have a misadjusted governor. The Tecumseh service manual has a great procedure for making this adjustment, essentially what you do is loosen the retaining nut on the governor arm, twist the governor shaft to its minimum speed position, then hold the throttle assembly at the idle stop and tighten the governor arm jam nut. Always keep a finger near the kill switch when running the engine the first time after this procedure, it's easy to mess up and have a runaway engine.

Please rank me if this was helpful,
Carl

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