How To Service A Honda Lawn Mower

Honda backyard mowers are designed to last a very long fourth dimension.

With the right servicing and maintenance, there is no reason a Honda lawnmower tin can't last the whole lifetime of the possessor.

In this article, I'm going to share all of my knowledge on how to correctly service a Honda lawnmower.

I have repaired hundreds of Honda lawnmowers and sold them for turn a profit by simply servicing them and making them run similar new again.

What I love about Honda lawnmowers the most is the nifty blueprint, manoeuvrability and really easy startup procedure, they are really well built with loftier-quality cut decks and powerful but quiet engines.

The GCC 135 and GCV 160 engines are common on many Honda lawnmowers so let's have a expect at how to service them

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Fuel Tap And Spark Plug

Honda lawnmowers are fitted with a fuel tap which is peachy every bit it saves the need to clench the fuel line when removing the carburettor.

Start past turning the fuel tap to the vertical position to stop the fuel menstruum. Next, remove the spark plug lead and completely remove the spark plug from the engine.

The correct spark plug for a Honda GCV 135 or 160 engines is NGK Spark Plug BPR6ES Suit Honda Izy Lawnmowers & Flymo XL500

The spark plug gap needs to be 0.seven to 0.8mm (0.028 to 0.032 inch)

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Leave the spark plug removed during all servicing and replace it after everything else is done.

Bleed The Oil And Fuel

I similar to use an oil extractor to drain all the oil and fuel from my lawnmowers. This eliminates the need to tip over a lawnmower while it still has oil and fuel in.

Try to avoid tipping any lawnmower with oil and fuel in every bit information technology volition crusade white fume and starting problems.

I apply aPela 6000 Oil Pump – Oil Extractor/Oil Extraction Kit. Oil Change Sump Pump! half dozen litre . It works well and stores all the fluids until I tin dispose of them in an environmentally friendly way.

It also avoids a lot of mess and is quick make clean and piece of cake.

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Remove The Starter Recoil

With the spark plug removed and any fluids extracted the adjacent footstep is to remove the starter recoil cover.

This will give you the opportunity to supersede the starter rope if necessary and give much better access to the carburettor and other areas.

To remove the starter recoil you need to remove 3 nuts on the top of the starter recoil cover, this will remove the pull start.

Information technology is likewise worth removing the gas tank and the outer plastic parts from around the recoil at this point and also the air filter.

Leave the starter recoil and all covers removed until the service is consummate. This will requite you admission to everything.

Likewise, make absolutely sure the spark plug is removed until all servicing is consummate.

Replacing The Starter Recoil Rope

Inspect the starter recoil rope. If information technology looks old or frayed you should replace information technology.

To replace the starter recoil rope pull out the rope every bit far as possible then employ a clamp to hold the recoil against the spring tension. Pull out the sometime rope and cut information technology off with a knife.

Do not release the clench at this bespeak.

Take a new starter rope (iii.5mm) is fine. Cut a length slightly longer than the rope yous accept removed to allow for tying some knots. Burn the end of the starter rope to stop it fraying and make the end into a point.

Line all the holes up on the starter recoil and poke the new rope back through. It's easier to push button back through when the cease u.s. burned. Tie a knot and pull it tight.

Again. Practise non release the clamp.

Burn the opposite finish of the pull cord and adhere a new starter handle.

Slowly release the clamp and allow the spring tension to wind upwardly the starter rope slowly.

Take a expect at this video for a demonstration.

Cooling Fins

With the starter, recoil and whatever plastic housing removed be sure to blow out any debris from the cooling fins. This is an ideal time to do it earlier you lot remove the carburettor for servicing.

If yous have a lawnmower that starts and so dies after a minute or and then when it gets hot, information technology'due south usually because the cooling fins are blocked causing the engine to overheat.

How To Service The Carburettor On A Honda Lawnmower

The showtime time you lot service a lawnmower carburettor it can seem a little tricky and bad-mannered. With a little practice, you lot can have this job washed in effectually 10 minutes.

At that place is a step by step detailed video of this available on my Honda repair manual DVD https://repairlawnmowersforprofit.com/shop/

With the air filter removed y'all will see 3 bolts that run through the air filter box housing. Remove these iii bolts and gear up aside the air filter housing.

The carburettor will drop down at this point which is perfectly normal.

I strongly suggest taking a few photos of all springs whatsoever linkages that connect to the carburettor at this point!

Next, you will need to unhook the two governor linkages and a spring from the top of the carburettor. This can be made easier by loosening the bolt in the centre of the control arm.

Pull the fuel line off the carburettor and remove it from the lawnmower.

Have a pocket-sized tub and place the carburettor inside information technology, this volition aid collect any fuel left in the carburettor and keep all the parts together.

Tip the carburettor over and drain out whatever excess fuel. Next, remove the commodities from the bottom of the carburettor with a 10mm spanner or socket and have off the bowl.

Exist sure to keep an centre on the gasket the sits between the basin and the carburettor. If it's broken or worn supercede information technology.

Yous will now see the bladder and a retaining pin. Turn the carburettor upside downwardly and pull out the retaining pin. Carefully remove the float and sentry for the small needle dropping out.

Do not lose this function!

Now you need to remove the main jet. Accept a thin flathead screwdriver and undo the main jet from the underside. Disengage the screw until the jet drops out. There is no setting involved so but remove information technology.

If the jet does not drop out take a small Allen central and push it downwards from the pinnacle. Yous will at present meet the jet is in 2 pieces, a short and a long piece.

Clean all the tiny holes out using carburettor spray and compressed air. If any of these holes are blocked and so your lawnmower will either non outset or not idle properly.

Take some carburettor cleaning spray and clean the residual of the carburettor making sure every tiny hole is clean.

Be certain to remove whatever screws and likewise spray inside these areas with carburettor spray. Blow everything through with compressed air and make sure everything is dry out.

If you accept an ultrasonic cleaner then I advise using it as this removes any dirt from parts we could non otherwise access.

Supercede any screws and then insert the longer thin part of the primary jet back into the carburettor. The thin cease drops in starting time, and then re-insert the other smaller function and re-tighten using a small flathead screwdriver.

Brand absolutely sure every function is clean including the bowl and needle.

Supplant the needle on the float bowl and insert back into place, and then re-fit the retaining pin

Replace the basin and hand tighten the bowl bolt.

These bolts are very easy to cross-thread so take extra intendance to tighten by hand, so finally tighten with a spanner.

Before reconnecting the carburettor linkages dorsum on the carburettor hook up the fuel line and turn on the fuel tap while holding the carburettor in position. Bank check for any leaks from the carburettor.

If it does leak it is highly likely the needle isn't seated correctly and the float isn't operating properly.

If everything looks fine then turn off the fuel tap and exit the fuel line connected. It is much more difficult to reconnect the fuel line once the air filter box is back in position.

Have a expect at this video where I show how to service the carburettor on a Honda petrol lawnmower

Delight subscribe to the channel hither https://www.youtube.com/c/MowerMan

Refit The Carburettor

To refit the carburettor back on a Honda lawnmower brand sure the fuel line is connected then connect the bound to the furthest pigsty and the longer linkage to the nearer hole on the carburettor.

In that location is one more smaller linkage the connects to the near side of the carburettor.

Offering the carburettor up to the lawnmower engine and line up all the gaskets and holes. Accept the air filter box and one long spiral and insert the screw through the air filter box, through the carburettor gaskets and spacers and lightly tighten into the engine.

Take the second bolt and repeat the procedure. Evenly tighten the bolts and remember to re-insert the rubber breather pipe to the back of the air filter box.

This is the virtually hard part so exist patient and get someone to assist you hold everything if necessary.

Fit a new air filter if required then the servicing of your Honda lawnmower carburettor volition be complete.

Supervene upon The Air Filter

After servicing the carburettor be sure to supervene upon the air filter. They are cheap to replace. If you lot do not wish to supervene upon it exist sure to blow any dirt out of the old filter using compressed air.

You lot don't want clay entering the carburettor at any point especially when yous have gone to the trouble of cleaning information technology.

How To Conform The Valves On A Honda Lawnmower.

If you have a Honda lawnmower that'due south difficult to pull over or doesn't run evenly peculiarly on lower speeds there is a very practiced chance the valves need adjusting.

I strongly advise servicing the carburettor to resolve any poor running bug before adjusting the valves as this eliminates xc% of hunting and surging issues.

Honda lawnmowers are renowned for in that location easy starting and the pull cord she be about effortless and polish when pulled.

Adjusting the valves makes a massive divergence to how easy it is to pull over and start a Honda petrol lawnmower.

Honda GCV 135 and 160 engines both have an overhead valve prepare (OHV) that is designed to be adjusted.

Remove the overhead valve cover advisedly past removing the surrounding bolts and gently lifting off the cover. Endeavor not to disturb the gasket sealant.

You lot volition now see the valve and the valve stems.

Remove the spark plug and place a plastic screwdriver down the spark plug hole and feel for the piston. Plow the starter to motion the piston towards you until you find top dead middle (TDC).

At this point, yous should take 1 valve all the mode open up and one valve fully closed.

Have a feeler gauge and slide it between the open valve stem and valve.

The right clearance for the inlet valve is 0.006 inch +/- 0.016 inches.

The right clearance for the exhaust valve is 0.008 inches +/- 0.002 inch.

To come across a detailed video on how to adjust the valves take a await here on my youtube channel and follow the tutorial.

Please feel free to subscribe to my channel.

In simple terms, it's a instance of loosening the locking nut and adjusting the clearance using the adjuster.

One tip is to proceed a spanner on the locking nut whilst doing the adjustment and take care locking support.

One time the right clearance is achieved information technology will exist much easier to pull over and start the lawnmower and it volition run much more evenly if the carburettor has been serviced.

Many times the valves need tightening as the clearance is too big causing lack of compression when attempting to kickoff.

Supercede the overhead valve comprehend using gasket sealant if required.

You can often get a feel for the valves been set by manually turning the flywheel. It should experience more than even with a good corporeality of resistance.

This process is very similar on all overhead valve lawnmowers and so it's well worth the time learning how to practise this procedure.

Setting The Ignition Coil

Information technology shouldn't be necessary to adjust the air gap between the ignition coil and the flywheel, nevertheless, I pick up all sorts of lawnmowers where someone has had a play effectually and loosened parts unnecessarily.

The correct air gap between the ignition coil and flywheel on a Honda GCV 135 or GCV 160 engine is 0.254mm to 0.355 mm or 0.010 inches to 0.002 inch.

Generally, I use an old greetings menu to ready the gap and I know many people utilise a playing carte!

To set the ignition coil gap plow the flywheel so the magnets are facing abroad from the ignition coil. Back off both bolts holding the ignition scroll in place.

Adjacent, have an old greetings menu or something of similar thickness and place it in the gap between the ignition coil and the flywheel.

Turn the flywheel until the magnets pick up the coil and are separated but by the bill of fare.

Lock up the two bolts and plough the flywheel to remove the carte du jour.

This is an like shooting fish in a barrel way to set an fifty-fifty gap between the ignition scroll and the flywheel.

I utilise this method regularly and never have a problem.

How To Remove A Honda Lawnmower Blade

With the spark plug removed and the fuel and oil extracted tip the lawnmower with the carburettor facing upwardly and the exhaust facing downwards towards the floor.

Lean the lawnmower against a wall or fence so you tin admission the underside.

Apply a 13 mm socket and undo the ii bolts that agree the bract in place and remove the blade.

I suggest taking the blade to a motorcar store for sharpening for all-time results.

If you lot wish to acuminate the blade yourself you tin simply employ a file to follow the natural angle of the cutting edge or use a bench grinder.

I recommend using a blade balancing tool to ensure the blade is evenly weighted too.

One thing to retrieve is that the correct bending is needed to provide the right back lift for the cut grass to exist transferred correctly to the grass box and if the blade isn't counterbalanced evenly you will experience more vibration throughout the lawnmower when cutting.

For these reasons, it's often meliorate to use a local lawnmower repair store or supercede the blade.

Check The Cocky Drive Chugalug.

With the blade removed information technology is appropriate to remove the belt guard and clear out any debris. I recently picked upwards a lawnmower where the self-drive didn't work because debris had built up in the belt guard and dragged the belt off!

Most times when this happens the bulldoze belt gets chopped to pieces by the blade and then it's well worth taking the fourth dimension to practise this part of the service with the blade removed.

Check the belt for signs of article of clothing at this signal.

Clean The Cut Deck

I have seen so many lawnmowers with perfectly running engines and rotten decks.

This is one of the master reasons people scrap or sell their lawnmowers.

To avoid this take a wire brush, scraper or pressure washer and remove whatever build up of grass from the underside of the cutting deck. If possible take the fourth dimension to paint the underside of the deck.

I normally use Hammerite black paint.

Doing this with the blade removed is very quick and easy to do and will massively extend the life of the cutting deck.

Also, avoid where possible cutting wet or damp grass. If your lawnmower has a self-cleaning cutting deck feature be certain to brand use of it.

Cheque The Microswitch

Well-nigh Honda lawnmowers utilize a micro switch instead of a impale switch.

The microswitch must exist activated to allow the ignition ringlet to work and in plow, cause the spark plug to.. well… spark!

Pull the safety lever of the lawnmower with the starter recoil removed and you will see the switch being activated.

Make sure it moves freely and is unobstructed. Occasionally I take seen the lever not moving far plenty to activate the microswitch properly.

Yous tin can see a demonstration on this video.

How To Prepare The Automatic Asphyxiate On A Honda Lawnmower

Honda lawnmowers use an automatic choking mechanism which eliminates the need to manually prime the engine.

One of the main reasons Honda lawnmowers occasionally go hard to commencement is because the automatic asphyxiate mechanism isn't operation correctly.

To service the choke mechanism remove the air filter comprehend and air filter.

Get a friend or handy helper to operate the throttle lever and take a look through the inner air filter box into the carburettor.

You volition encounter a small valve which I refer to as a gold butterfly choke.

With the throttle set to choke this valve should be fully airtight to enable the engine to choke efficiently.

With the throttle set up to full speed, the butterfly should be fully open allowing maximum airflow.

The choke is set past the position of the throttle cable.

Follow the throttle cablevision from the handle down to the command arm on the lawnmower to locate the correct cablevision.

Back off the screw that holds the cable and set the throttle to choke.

Manually move the cable until the butterfly asphyxiate is fully airtight then tighten the cable up in that position.

Cheque that the choke opens and closes correctly by operating the throttle lever and watching the butterfly open and close correctly.

Having a poorly adjusted choke or a micro switch that fails to operate are the 2 main reasons I regularly come across that finish a Honda lawnmower from starting upward.

Technical Data For Honda GCV Engines

Spark Plug Type NGK BPR6ES
Spark Plug Gap 0.7 to 0.8 mm (0.028 0.032 inches)
Valve Clearances Intake 0.15 mm +/- 0.04 mm (0.006 +/- 0.016 inch)
Exhaust Clearance 0.20 +/- 0.04mm ( 0.008 +/- 0.002 in)
Ignition Curlicue Armature Air Gap 0.254 to 0.355 mm (0.010 to 0.002 inch)
Engine Oil Class 10W-twoscore
Engine Oil Capacity 0.55 litres.
Torque Wrench Settings
Large Cease Bolts 12 Nm
Flywheel Nut 52 Nm

Checking The Flywheel Primal

If y'all take lawnmower kickback problems subsequently all servicing is consummate you will need to check the flywheel key.

If a flywheel key is fifty-fifty slightly damaged information technology massively changes the timing of the lawnmower.

Remove the starter recoil covers and you will come across the flywheel.

Use a flywheel puller to pull the flywheel from the crankshaft and inspect the flywheel central.

It should be a perfect shape.

If at that place are whatever knocks or imperfections supplant the keyway.

Take a await at this video for a demonstration

The flywheel cardinal sets the position of the flywheel on the crankshaft and the timing of the spark.

If the flywheel is slightly damaged you will get an incorrectly timed lawnmower with the spark plug sparking at the wrong time causing vibration and starting issues.

You can read more virtually lawnmower kickback problems here https://repairlawnmowersforprofit.com/lawn-mower-kickback-help-and-repair/

Purchasing Spare Honda Lawnmower Parts.

Many parts are bachelor from the recommended products department of this website. https://repairlawnmowersforprofit.com/recommended-products/

Beware of later market parts particularly carburettors and started recoils. In my feel information technology never pays to utilise after market place parts as they tend to crusade more problems in the long run.

Service Sticker

To detect the correct parts for your lawnmower you will need to observe the service sticker.

This is usually a silvery sticker located either on the side of the cut deck or on the superlative of the cutting deck.

These are the details your local lawnmower service center volition demand to source the correct parts for your lawnmower or if you are looking to purchase spare parts online.

I suggest taking a photograph on a mobile phone to proceed a record of this using the free google photos app to keep a backup.

This way you lot volition always take access to the information equally long as yous normally behave a mobile phone.

Service stickers tend to get damaged with fuel and fade over time and without this data, it tin often be difficult to locate correct spare parts

Final Thoughts

Honda lawnmowers tin can last a very long time with the right service and maintenance. You can read more well-nigh why in this article https://repairlawnmowersforprofit.com/8-best-walk-behind-petrol-lawnmowers-that-could-last-a-lifetime/

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Hither are a couple of useful videos on Honda Lawnmower repair.

At that place are many reasons I recommend Honda lawnmowers in many of my articles, the chief reasons are because they are incredibly like shooting fish in a barrel to start when ready correctly, very piece of cake to manoeuvre have super solid cutting decks and reliable powerful however serenity engines.

Honda throttles work well and the roto stop clutch feature is a must when cut larger areas as it saves having to re-starting time the mower afterwards emptying the grass bag.

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The handles on Honda Lawnmowers adhere to the cut deck sensibly and are designed to last.

My personal favourite is The Honda IZY range of lawnmowers fitted with the GCV 135 and 160 engines. Accept a look at the design here Honda Izy HRG 416 SK Petrol Cocky Propelled Rotary Lawnmower – 4 Wheeled

I have picked up plenty of Honda lawnmowers to repair for profit and the Honda IZY range always runs like new once more afterwards a good service.

The clever design of the cutting deck and wheels combined with the handle ready up makes these lawnmowers very easy to use and they produce an first-class finish.

Spare parts are widely available and sensibly priced. I have recently included the Honda IZY range of lawnmower in my list of lawnmowers that could potentially last a lifetime in my commodity https://repairlawnmowersforprofit.com/8-best-walk-backside-petrol-lawnmowers-that-could-last-a-lifetime/

Be sure to bank check out all my complimentary Honda lawnmower repair videos bachelor here on my youtube channel. https://www.youtube.com/c/MowerMan

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You lot can find lots more than information and start repairing lawnmowers for profit past checking out my online training here https://repairlawnmowersforprofit.com/recommended-products/lawnmower-repair-preparation-products/

I promise this article helps with the servicing of your Honda Lawnmower. Experience free to look in the recommended products department of this website for any service parts yous may need. https://repairlawnmowersforprofit.com/recommended-products/

Happy Mowing.

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