Question about V-Twin Horizontal OHV Engine with Electric Start - 610cc, GX Series

Open Question

How to clean fuel jet in Honda GX390 - V-Twin Horizontal OHV Engine with Electric Start - 610cc, GX Series

Posted by on

  • brandon lilly
    brandon lilly Feb 11, 2014

    Hi Steve Smith, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box? is carb or fuel injection carbs but fuel injecter are better just to change



2 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 2 Answers

SOURCE: Honda gx390 has low power.

Well it sounds like you may need new piston rings or an engine rebuild due to low compression. But a good way to tell if you need an engine rebuild is to test the compression and see if it is up to spec. You can often just feel that the engine is very easy to turn over which is a good sign that you need a rebuild.

Posted on May 08, 2012

Testimonial: "Thanks for the input Mr. Fraser, I am certin it is a compression problem. I didn't think about smelling the engen oil for gas, I will do it tomorrow. Still looking for the compression psi. More or less I think I need to grab a shovel and my metal detector and serch for my coffee can bank. "


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My old Honda 215 lawn mower is not getting gas like it should it's not receiving gas or letting it stay in the the lines it turns off after maybe two minutes

If you have a fuel bowl on the bottom of the carb.take it off and clean it also cleaning the fuel jet. I use air pressure to blow out the fuel jet. A dirty jet will not let enough fuel to keep engine running. if you don't have air pressure a real fine wire will clean the jet as well . Be very careful you don't let the float come apart.

Apr 30, 2016 | Honda Garden

2 Answers

GX390 runs and shuts off

have you checked the engine oil. most models have an oil motion pick up. they are fitted to most lawn mowers as well when the oil gets week it does not lift and engine will just cut out. replace oil with 20/50 oil.

Sep 12, 2013 | 13 HP Engine GX390 OHV Horizontal Shaft

1 Answer

13 HP Engine GX390 OHV Horizontal Shaft. runs perfectly fine/pressure fine for 2 to 3 minutes then shuts off. Have to restart over and over and over. Checked oil, no smoke, took air filter off, cleaned...

Check that the fuel tank is not creating a vacuum. this will starve the engine. After it shuts down the vacuum dissipates and lets the fuel run into the carb again.

Sep 10, 2013 | 13 HP Engine GX390 OHV Horizontal Shaft

2 Answers

Honda gx390 keeps cutting out

Linda, Sounds as though the engine is starving for fuel.

Sep 17, 2012 | 13 HP Electric Start GX390

1 Answer

My 13.0 honda gx390 motor has no spark and will not start

try disconnecting the black wire which runs across under the fuel tank you should have spark.

Nov 15, 2011 | Simpson Taskmaster Industrial Gas Powered...

3 Answers


This can happen if there was fuel left in the carburettor for a few months. The fuel forms a gel in the jets which can block the fuel getting through. You could try the following procedure which might help get it going.

  • Remove the sparkplug.
  • Pour about 5ml (or 1 teaspoonful) of fuel into the opening, where the sparkplug came out of.
  • Dip the end of the spark plug in fuel so the spark gap gets wet and replace the plug and HT lead.
Try to start the generator. The fuel that you poured in should ignite. This might be enough to get the engine running. You may have to repeat the procedure 2 to 3 times. Don't be tempted to pour too much fuel in as it will cause the engine to flood.

If the jets are blocked in the carburettor this might be enough to **** the fuel through but if not you'll need to get a mechanic to strip down the carburettor and clean the jets.

Jan 12, 2011 | V-Twin Horizontal OHV Engine with Electric...

4 Answers

Where can I find an owners manual for a Black Max 8125/ Honda GX390 OHV generator? I searched Honda's site but not there, no black max site. My lawn guy pulled a wire off and I need to see where it is...

low oil sensor will not cause the motor not starting.
most likely is th ground wire.
you can try to attach that wire to any surface and try to start it. of it start, then you have to dis-assemble the head and find out where the wire should be attached.
if not, the wire is attached to a hot side. either way you have to dis-assemble the head.
here is the site for the manual.

Apr 07, 2009 | Electrical Supplies

Not finding what you are looking for?
V-Twin Horizontal OHV Engine with Electric Start - 610cc, GX Series Logo

Related Topics:

68 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Vehicle Parts & Accessories Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Spud Howell

Level 2 Expert

57 Answers

Mike Carew

Level 3 Expert

969 Answers

Are you a Honda Vehicle Part and Accessory Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides