Honda Garden - Page 2 - Popular Questions, Answers, Tips & Manuals

Could be it is running on only one cylinder. Pull spark plug wire on one cylinder and see if it starts. If it runs, reattach and disconnect opposing plug wire. If it then doesn't start/run, the cylinder with plug wire connected is not contributing. Check spark, compression, and fuel for each cylinder.

Check for water in fuel. Drain tank and carburetor bowl and refill with fresh fuel.

OHV small engines require periodic valve adjustment.

Least likely, the governor needs base adjustment reset.

This appears to be relating to an Ingersol Rand Air Compressor rather than anything in the Honda Garden category? Make Model (What is is) in all questions please. https://www.indiamart.com/proddetail/ingersoll-rand-t30-air-compressor-electric-motor-driven-tank-mounted-compressor-package-15hp-22929260312.html According to my research is has a 20HP 3-PHASE ELECTRIC MOTOR. There are some other tihings to consider. When you are running this Honda gas engine, you are filling your workshop with deadly carbon monoxide gas. Your Honda GX-390 is only 11.7 hp (8.7 kW) @ 3,600 rpm, not 20hp so it is doomed to failure. Also, how are you going to get it to cycle on when the tank needs it. Take your existing electric motor and get it repaired or rewound. Much cheaper option for a safe working environment and doing the job it is meant to. https://engines.honda.com/models/model-detail/x-large-gx ..

make sure of correct belt also check and adjust tensioner or repair if faulty

Check the float valve.

Drain fuel tank (reserve) and carburetor bowls. Take an empty fuel container and get two gallons of fresh fuel from the gas station. If problem goes away then check drained fuel for water.

notify honda

from your description sounds like a seized motor remove plug and try to turn over motor

their for safety but usually get mangled bent or left off after changing belt all you need is a bolt washer and nut to put back in place

google the model number and find a diagram

Check for continuity on the ignition module kill wire to engine block. Without the oil sentry there should be a single black wire from the ignition module to the ignition switch. This wire goes to the ignition switch and when in the OFF position connects to engine frame to disable spark.

You could disconnect the kill wire at the ignition module and then check for spark. If spark then the kill wire or switch is connected to block (short) or bad switch.

Per owners manual... WATER PUMP OIL IMPORTANT: If oil is white or foaming, water is in the oil reservoir. Change oil.NOTE: Water in oil occurs as a result of spray or condensation. Milky oil is not indicative of a pump malfunction.

it needs to be taken apart to see whats broken inside

And check operation of auto-choke.

Turnoff the engine & detach the spark-plug wire.unscrew the belt cover bolts which are located on the right side of the unit
Depress the clutch lever to release tension on the pulleys
Place the new drive belt on the pulleys
Replace the belt cover and tighten the screws to secure it in place

In order to start an engine needs: - A good cranking speed or equivalent. Compression. Timing. The right amount of fuel being delivered into the combustion chamber. A good spark at the right time. As your engine doesn't start, clearly there is at least one of those items that is absent or unsatisfactory. There are a couple of things you didn't mention - you didn't say the spark plug was getting wet with fuel and you didn't say you had checked the spark...

Honda engines usually start easily. If the engine starts and runs smoothly the problem is probably with the recoil starter - some designs can accumulate wear and detritus that can cause considerable friction and sometimes need taking apart for examination, cleaning and lubricating. Any worn parts should be replaced and pay particular attention to the ferrule the rope passes through and if worn should be replaced. The recoil spring can become gummy also adding to the force needed for starting. Removing it very carefully (because they can easily fly and bite) and wash it in a little petrol or similar and dry it thoroughly. Lubricating the spring is a sort of damned if you do and damned if you don't situation - lubricating the spring reduces friction and helps stop corrosion but does trap more dust and grit. Light machine oil is good but a little dry colloidal graphite is better. I find a silicone spray is satisfactory, though repeat spraying is needed regularly including the rope...

Could be carburetor float is stuck or the inlet needle not functioning. Check that engine oil level is not above normal.

Remove air filter cover and see if fuel has saturated the filter. Another sign of a stuck carb float.

Test fuel pressure and volume.

No fuel... carburetor float/needle valve is likely stuck shut. Clean carburetor bowl and use a fuel treatment such as Seafoam, per directions.

Not worked on too many of these, however it would suggest there is either wear in the screw shaft, or the crown wheel, you should also check the bushes the screw shaft runs in, if there is excessive wear the gears will not mesh properly.