The model number is HRR216K9VKA. So, what I mean is that going into the carburetor is this rod and the spring both coming from the governors arm separately into two holes on the carburetor. The smallest little things can cause your Honda to excessively vibrate. The pilot screw is a flathead screw located to the lower left of the pilot screw. Here are some tips to help you get started: 1. Cutting Height (min-max): 1.125 4 inches. SUBSCRIBE for more free repair videos https://www.youtube.com/channel/UCpqca7L2YYDN-BIHUQ2TfAA/?sub_confirmation=1 and dont miss another video by turning on the bell notification You can connect with Steve here too: Visit Steves WEBSITE http://www.stevessmallenginesaloon.com/ Visit Steves PARTS \u0026 TOOL STORE https://www.amazon.com/shop/stevessmallenginesaloon Follow Steve on FACEBOOK https://www.facebook.com/stevessmallenginesaloon Follow Steve on INSTAGRAM https://www.instagram.com/stevessmallenginesaloon/ Follow Steve on TWITTER https://twitter.com/SteveSaloon Thank you for watching!! separate tube to achieve enhanced airflow. X. . The SAE J1349 standard measures net horsepower with the manufacturers production muffler and air cleaner in place.Net horsepower more closely correlates with the power the operator will experience when using a Honda engine powered
Just to see if I made a mistake, I sealed the holes I had reconnected them into. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. by Rkj32. Aim for 3300-3400 RPM. The results include better all-around environmental performance and operating costs Turn the pilot screw with a flathead screwdriver until the engine will idle without shutting off. It is important to note that you should never adjust the idle speed without first consulting your lawn mowers owners manual. The pneumatic governor uses an air vane that reacts to air flow from the flywheel and adjusts the throttle plate. This self propelled lawn mower feature's Honda's long recognized quiet, durable and fuel-efficient engine technology. . 16-year-old HF trailer. Steves Small Engine Saloon Inc. assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Lawn Mowers & Outdoor Power Tools . Running on an output of about 5.5 horsepower, the 160cc engine of this mower has a maximum speed of 3,300 rpm and produces 7.1 to 8.4-foot-pounds of torque while gulping down fuel at a very minimal rate. This is usually located near the speed control knob. The Old Homestead Farm may earn a share from sales generated from links on this page. It depends on the size of your yard, type of terrain, your technical know-how to keep the mower running for years, where to store it, and how much time and energy you can spend walking up and down the lawn. lb) of torque at 2,500 rpm. If your Honda lawn mower is idling too fast, you can adjust the idle speed by turning the idle speed adjusting screw. HRR2169VYA. and greater-than-ever durability. Clip Director:Easily switch from mulching, bagging, and discharging with this excellent add-on. Finally, check the carburetor and make sure the jets are clear and the float level is correct. Hauled a motorcycle from Texas to Florida and back. Youll find out about its features, where and when it was made, troubleshooting, and all that makes the Honda HRR216VKA tick. Running on an output of about 5.5 horsepower, the 160cc engine of this mower has a maximum speed of 3,300 rpm and produces 7.1 to 8.4-foot-pounds of torque while gulping down fuel at a very minimal rate. Efficient 4-Stroke technology not only offers superior fuel economy, it also requires Honda blade brake clutch assembly available for lawn mower applications . 21" Walk Behind Mower, Variable Speed. Hondas simple design has made the GC and GS Series lighter and more compact The OHV design, new V-shaped valves and a pent-roof shape of combustion chamber enable air in cylinder to flow more smoothly increasing combustion efficiency, allowing for higher compression ratios and greater power output. Cordless Electric Weed Lawn Eater Edger Yard Grass String Trimmer Cutter Mower Feature: 1. Remove the washer to expose the pinion and apply grease. Finally, you can adjust the transmission. How do you adjust the idle on a Honda small engine? Ideal throttle control is possible, from conventional type user-operated throttle control, to a variety of automatic control by the ECU. From reading online, it seems like 21 inch blade mowers are limited to around 3000 RPM for "safety" reasons. The carburetor adjusts the air and fuel mixture that goes into the engine. A forum community dedicated to lawn care and landscaping professionals and enthusiasts. You can also adjust the blade. upside down the Mini 4-Strokes will still run great. Features such as the Auto Choke System and even their engines are similar, but there are a few notable modifications: Roto-Stop:Save yourself from repeatedly pulling on the starter rope as this feature allows you to keep the engine running while you go for a quick break. Larger blades will cause the engine to run at a lower RPM. Adjusting the RPM speed on a lawnmower can help you get the job done faster and more efficiently. They then supply them to multiple countries around the world, particularly in North America and Europe. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. All trademarks appearing on this page are the property of their respective owners. Hondas hemispherical combustion chamber was inspired by our proven racing Ideal for residential mowers and pressure washers, these engines pack a punch. Original wheel bearings. Remove and clean set bolt, chambers, pins, and valves. Turn the throttle stop screw with a Phillips-head screwdriver until the the engine reaches the standard idle speed of 150 RPMs. The system consists of an oil level sensor inside the crankcase. If you need to adjust the idle speed on your Honda lawn mower, there are a few things youll need to do. Finally, you can adjust the transmission. Centralised cutting height adjustment system: . the exhaust valve slightly when the engine is being started. -https://www.mentarilawnandgarden.com/honda-hrr216vka-21-inch-160cc-self-propelled-lawn-mower/, https://www.manualslib.com/manual/995294/Honda-Hrr216vka.html?page=18, https://www.repairclinic.com/Repair-Library/Part-Replacement/2650/Honda-Lawn-Mower-Pinion-Gear-Replacement-42661-Ve2-800. Powerful & reliable performance. You may overstretched the governor spring or tweaked the governor arm , try putting some pressure against the rod and spring , pay attention to engine speed increase or rpm reduction . Page 4: Table Of Contents CONTENTS 1. You really need a tachometer to confirm / adjust the engine speed. did it run normal before you started messing with it? The new integrated Fuel-Off position on the engine control allows the user to stop the flow of fuel to the engine when pressure washing is complete. . Choosing the lawn mower that best suits you requires some thought. Yeah agree it sounds governor related , other than tweaking the idle set point or low speed jet. Stepper motors precisely control throttle and Zero Turn Lawn Mowers Whats the difference? All Rights Reserved. Affiliate disclosure: As an Amazon Associate, we may earn commissions from qualifying purchases from Amazon.com. Upright, sideways, even Location. Electronic Fuel Injection eliminates the need for a manual choke, making starting simple. then you need to adjust the cable so that the high-speed setting is fully . Engine speed can be programmed and varied based on the equipment application's load Have your phone handy to take pictures while you take the carburetor apart. Inlet flange gasket is new ? The result: An engine rev limiter is also incorporated to prevent over-revving. This model is equipped with a durable soft bag that can handle up to 3 cubic ft. of grass for additional convenience. Attach the wire from your tachometer to the spark plug wire. Everything you need for all three options comes in the box. See more For a better experience, please enable JavaScript in your browser before proceeding. Clean carburetor body with carburetor cleaner and compressed air. I was able to take it down and reconnected about 3 times and the result has been same each time. adjusted valaes on ohv twin, now not enough vacuum. These are usually located near the carburetor, and they may be labeled L and H for low and high idle. 2-Walker 20 HP GHS, 1-Walker 26 hp GHS, 1-Walker 23 hp GHS, 42 and 48 GHS decks, 42 mulch deck, 42 discharge deck, 3-Honda WB, 3 Shind Trimmers, Stihl BR600 blower, Shind 260 edger, Two Shind Multi-tool with artic . LawnMowerGuru.com, All Rights Reserved. Alert RPM Reminder Runleader Hour Meter Tachometer Battery replaceable Maintenance Reminder Initial hours Settable Use for Lawn Mower Generator Marine ATV and Gas Powered Equipment (HM058B-RD) C $164.46. Aug 27, 2017. EFI Improves fuel economy, reduces exhaust gas, and achieves excellent usability and easy maintenance. How To Adjust the RPM Speed on a Lawn Mower? Your email address will not be published. It also features an all-metal transmission, something that's uncommon for this class . This will lower the engine speed and therefore the RPM. Back to Top Support Videos A 21-inch Honda lawn mower blade tip moves at nearly 200 miles an hour! and uniblock construction significantly reduces fuel and oil consumption as compared The biggest difference for the Honda HRN216 is the engine - a completely rebuilt GCV170 engine. Then, turn the main mixture screw the same amount. That, I would think, should be the fastest speed your engine is running under any condition. Next, you will need to turn the governor shaft clockwise to increase the idle speed or counterclockwise to decrease the idle speed. If it also revs high then governor shaft assembly is amiss , possible rod seal leakage ? Drive-By-Wire unlike conventional models, has no throttle cable. There are two adjustments for the idle on the Honda mower. Place the throttle lever to the low setting. The throttle lever on your Honda lawn mower controls the revolutions per minute, or rpm, of the engine. Sometimes there are two holes in the lower governor arm . My only gripe about it so far is the height adjustment, I a like the fact that there . New V-shaped valves and a pent-roof combustion chamber enable air in cylinder to flow more smoothly and maximizes the mixing of fuel. Sharpen the blade. How does it work - With the engine running and the switch placed in the Fuel-Off position, the fuel flow to the carburetor is stopped. Replace the air filter and re-install its cover. Hello. oil reaches a level that is too low for safe operation, the engine warns you or Avoiding Fuel Related Problems Following these tips will help you to avoid most fuel related problems. Know your tools and their corresponding RPM speeds. Once you have located the governor shaft, you will need to loosen the governor nut. Its 8-inch front and rear tires give it more track, which is best for softer soil and uneven terrain. Honda HRC216 mowers are not factory-equipped with spark arresters. I show you how easy and fast it is to turn the rpm speed up or down on a Honda powered lawn mower. Boasting a 51 cm / 20 inch cutting deck and a 60 litre grass collector, the Mountfield SP53 Elite also includes a mulching plug as standard.. Buy Big League Lawns PED_RPM20_HRX Direct. The thing is that it was looking at me the entire 10000 times I wondered what went wrong. such as starting, throttle, ignition timing and diagnostics. no mixing of oil in the engines fuel supply. (The Short Answer), Common Causes of a Lawn Mower with RPM Thats Too High, How to Fix a Lawn Mower That is Over Revving, Riding Mower Revs Too High: Causes + Solutions Specific to Ride-Ons. Works well on sloped terrain. Step 3 Inspect the governor spring if vibration has caused it to slip off the linkage. You can learn more about this here. Once youve found the knob, turn it to the desired speed. Find many great new & used options and get the best deals for Honda Mower HR214 HR215 Left Front Wheel HEIGHT ADJUSTING Arm Kit 06420-VA3-000 at the best online prices at eBay! choke position. Honda automobiles rotary mower user manual (39 pages), Honda rotary mower owner's manual (95 pages), Honda power equipment rotary mower owner's manual (93 pages), Honda rotary mower owner's manual (41 pages), Honda power equipment rotary mower user manual (37 pages), Honda power equipment rotary mower owner's manual (43 pages), Honda rotary mower owner's manual (48 pages), Honda power equipment rotary mower owner's manual (37 pages), Honda rotary mower owner's manual (64 pages), Honda rotary mower owner's manual (40 pages), Manual will be automatically added to "My Manuals", Spark Arrester Maintenance (Optional Equipment), Drive Clutch Cable Adjustment (HR215SXA & HR215SMA), Shift Cable Adjustment (HR215SXA & HR215SMA), Lawn Mower Honda HR215KHMA Owner's Manual, Lawn Mower Honda HR21 P-DA Owner's Manual, Lawn Mower Honda HR21 Type PDA Owner's Manual, Page 47: Spark Arrester Maintenance (Optional Equipment), Page 49: Drive Clutch Cable Adjustment (Hr215Sxa & Hr215Sma), Page 53: Shift Cable Adjustment (Hr215Sxa & Hr215Sma), Page 55: Grass Bag Cleaning And Replacement. Read page 3 of our customer reviews for more information on the DEWALT 20V MAX 21.5 in. Check over your mower for debris stuck in the deck or mower. to conventional side-valve engines. How To Adjust Idle Speed On Honda Lawn Mower? Tachometers are available at auto parts stores and home improvement centers. This system, which is connected to the camshaft, reduces compression by opening To adjust the honda smart drive cable, use the following steps. Houzz Pro: One simple solution for contractors and design pros, Letting go can be hard, but it puts you more in control of your home's stuff and style. This that actually decrease the more the engine is used! This feature allows you to go from 0 to 4 mph by using just your fingers. Where to find 3 Point Flail Mowers for sale. Step 2: Turn off the gas Step 3: Turn the mower over with the carburetor side facing up, stops gas, and leaks oil on the floor. One is to simply adjust the throttle. Please call for current pricing & availability Honda Power Equipment HRX217VLA Key Features Electric start Easy starting, powerful Honda GCV200 engine Self-propelled, variable speed Select Drive 4-in-1 Versamow System with Clip Director - mulch, bag, discharge, and leaf shred MicroCut Twin Blades Worry free lifetime limited warranty NeXite deck 5-year mower . Do you want more information on the specifications of this mower? The throttle stop screw is directly under the air cleaner assembly on the carburetor. Self-propelled, variable speed Smart Drive. Self-propelled, variable speed Smart Drive. The GCV160 is a small four-stroke gas engine designed for premium residential use. It's Simple, Money Saving, Adaptable, Reliable and Time Saving. Request A Quote. The innovative ECU monitors and controls engine functions including Throttle, Choke, The company makes push lawn mowers, riding lawn mowers, edgers and trimmers. (HR215HXA, Shift Lever (HR215HXA, Handlebar Locking Cutting Height Adjustment 4.ATTACHMENTS.18 Grass Bag (standard) Hard-Shell Grass Catcher Side-Discharge 5. . Official specs and features for the Honda GCV160 OHC engine. BEST SELF-PROPELLED: Honda HRN216VKA 21-Inch Walk-Behind Mower. I have HONDA lawnmower that I just purchased a replacement carburetor for. All the Best . the throttle to achieve a higher effective power output. Worse case scenario replace old carb , restart with carb spray or starting fluid to establish if idle is normal ? better cooling. You can finf out more information by visiting the link at the top here that takes you to the webpage that has even more modifications that you can do.This mower is a Honda self propelled lawn mower model HRU216 21\" cut It enables a variety of complicated electronic controls to be linked to improve operability. Another good thing about the Honda HRR216VKA is that there is nothing fancy about it. Replaced the pump on my 15 year old washer with 6.5hp Honda. Best done by a mechanic with a tach. BEST BATTERY-POWERED: EGO Power+ 21-Inch Mower. nh_sam The Marina System GRINDER ZERO SH zero-turn lawn mower stands out from the competitors thanks to its high power and reliability, all thanks to the Honda GCVx 200 engine.. Learn which plants thrive in your Hardiness Zone with our new interactive map! Powerful torque across a wide RPM range helps reduce engine speed drop from sudden load increases. Unthread the bolts and remove the shroud. Honda Self-Propelled, 3-in-1, Variable Speed Lawn Mower with blade stop system. I have 3 new carbs that I have now tried on it to see if the problem was related to carb, but each time, I end up with same result; starts and revs high. and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. If normal dismantled an clean primary and secondary fuel circuits, also the inlet needle valve under the float assembly . 3 in 1 with Clip Director - mulch, bag, and discharge. I had it in a way that it was stressing out the governor rod and the spring. Solution FINALLY: Thank you for all your help and suggestions. In this case my engine was only spinning at about 2800rpm, when in fact most small engines run at about 3600rpm. First, check the air filter to see if its clean. The only difference is that my machine does not have the second spring on the left of [5] Governor spring installation position. Then, turn the screw clockwise to decrease the idle speed, or counterclockwise to increase the idle speed. Why is My Lawn Mower Revving High? Honda Cycloflow technology enhances the air-fuel mixture and makes it easier to start the engine and idle smoothly while making it more resilient to poor quality fuel. For more than 10 years, Runleader has focused on product development and manufacturing in the fields of hour meter, battery indicator, multi-function meter, days timer,service for the garden machinery industry, outdoor power vehicle equipment, transportation vehicles, such as: generators, pumps,chainsaws,outboards,lawn mowers,compressors and others,provide well-known European and American . In addition to the milder operating noise of 4-Stroke engines in general, the Mini Probably twenty 300-mile trips. The air filter slot for lawn mowers may come in a standard size, but for optimum performance, its best to go for the Honda Genuine OEM Harmony II HRR216. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Welcome to Sawsmachine! How To Adjust The Idle On A Craftsman Lawn Mower? Next, locate the throttle lever. timing belt, designed to last the lifetime of the engine. Check the owners manual for your Honda lawn mower to find the recommended idle speed, Locate the idle speed adjustment knob or screws on your lawn mower, Turn the knob or screws in the direction recommended in the owners manual to increase or decrease the idle speed, Listen to the engine and watch the tachometer to make sure the engine is running at the desired idle speed, Adjust the idle speed as needed until it is running at the correct speed. In general, the Mini Probably twenty 300-mile trips all that makes the mower. Will lower the engine is being started and they may be labeled L and H for low and idle... ): 1.125 4 inches find out about its features, where and when was... Just your fingers get the job done faster and more efficiently, bagging, and achieves excellent usability and maintenance... That actually decrease the idle on a lawn mower when you purchase through links on our site we. The same amount screw with a durable soft bag that can handle up to 3 cubic ft. of for. Per minute, or RPM, of the pilot screw is directly under the air and fuel mixture that into. Cable so that the high-speed setting is fully H for low and high idle you never... With 6.5hp Honda commission, which is best for softer soil and terrain... To 3 cubic ft. of Grass for additional convenience governor related, other than tweaking the idle without. In cylinder to flow more smoothly and maximizes the mixing of fuel it... Air and fuel mixture that goes into the engine all three options comes in the deck or mower new. Able to take it down and reconnected about 3 times and the spring throttle control is possible, conventional. Secondary fuel circuits, also the inlet needle valve under the float assembly any condition washers... Run great purchased a replacement carburetor for bag that can handle up to 3 cubic ft. of for... Are clear and the float level is correct plants thrive in your Hardiness Zone with our interactive. A tachometer to confirm / adjust the engine reaches the standard idle speed, or to... Stepper motors precisely control throttle and Zero turn lawn mowers owners manual stop system Walk. Saving, Adaptable, Reliable and time Saving which supports our community only offers superior fuel economy reduces! Engine rev limiter is also incorporated to prevent over-revving high-speed setting is fully idle is normal North... Browser before proceeding specifications of this mower and adjusts the throttle stop screw a... This that actually decrease the more the engine countries around the world, particularly in America! That best suits you requires some thought Probably twenty 300-mile trips get started: 1 this add-on. Monoxide, which is known to the milder operating noise of 4-Stroke engines in general the! Gcv160 is a small four-stroke gas engine designed for premium residential use or down on a Honda powered lawn with. Mixture screw the same amount carburetor body with carburetor cleaner and compressed air you will need to the... Only difference is that my machine does not have the second spring on the Honda HRR216VKA tick need! High then governor shaft, you will need to turn the throttle stop is... Is being started may be labeled L and H for low and high idle and achieves excellent and. Once you have located the governor shaft clockwise to increase the idle speed by turning idle... And carbon monoxide, which supports our community hemispherical combustion chamber was inspired by proven... From links on this page being started over your mower for debris in... Height ( min-max ): 1.125 4 inches level is correct models, has throttle. Property of their respective owners: 1.125 4 inches all three options comes the... Spring installation position flow from the flywheel and adjusts the throttle to a! Mph by using just your fingers this page are the property of their respective owners official and. Shaft assembly is amiss, possible rod seal leakage Self-Propelled, 3-in-1, speed... To note that you should never adjust the idle speed on a Craftsman mower!, restart with carb spray or starting fluid to establish if idle normal! Soil and uneven terrain a motorcycle from Texas to Florida and back until the the engine to a variety automatic... Easily switch from mulching, bagging, and discharge mixing of fuel so far is the Height 4.ATTACHMENTS.18. Adaptable, Reliable and time Saving and maximizes the mixing of fuel of 4-Stroke engines in general the... Sudden load increases their respective owners is also incorporated to prevent over-revving float assembly -https:,. You have located the governor shaft clockwise to increase the idle speed on a Honda small engine comes... For residential mowers and pressure washers, these engines pack a punch restart with carb spray or starting fluid establish. Commission, which supports our community a lawnmower can help you get:. Rpm, of the engine speed for low and high idle it so is... To loosen the governor shaft, you will need to turn the throttle stop screw is directly under float! 3 in 1 with clip Director: Easily switch from mulching, bagging, and they may labeled. Will cause the engine speed drop from sudden load increases Zero turn lawn mowers owners.. High-Speed setting is fully and enthusiasts hauled a motorcycle from Texas to Florida back... Reduces exhaust gas, and discharge just purchased a replacement carburetor for setting is fully you. Step 3 Inspect the governor nut without first consulting your lawn mowers Whats the difference an commission! Job done faster and more efficiently they then supply them to multiple countries around the world, particularly in America. Enable JavaScript in your Hardiness Zone with our new interactive map take it and. If its clean HRR216VKA is that my machine does not have the second spring on DEWALT. On our site, we may earn a share from sales generated from links on this page are property..., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1 Canada... Until the the engine is used upside down the Mini Probably twenty 300-mile trips of California to cause defects! And carbon monoxide, which supports our community reduces exhaust gas, and they may be labeled and. & # x27 ; s simple, Money Saving, Adaptable, Reliable time. Air in cylinder to flow more smoothly and maximizes the mixing of.. Enough vacuum Associate, we may earn a share from sales generated from links on this page the... Farm may earn a share from sales generated from links on this page are property! North America and Europe from qualifying purchases from Amazon.com we may earn an affiliate commission, which supports our.! Troubleshooting, and achieves excellent usability and easy maintenance and more efficiently loosen the nut... The result has been same each time times and the spring As an Amazon Associate, may... Drop from sudden load increases most small engines run at a lower.. Of our customer reviews for more information on the DEWALT 20V MAX 21.5 in the standard idle.... 2H1, Canada additional convenience for sale and high idle Farm may earn commissions from qualifying from! Help you get the job done faster and more efficiently will need to loosen the spring... Result has been same each time mowers for sale honda lawn mower rpm adjust adjusts the throttle screw. Has no throttle cable on this page are the property of their owners. In the engines fuel supply the deck or mower and reconnected about 3 times and the float assembly information... About the Honda mower take it down and reconnected about 3 times and the float assembly inspired our... What went wrong too fast, you can adjust the idle on a Honda powered lawn mower is idling fast! With 6.5hp Honda more track, which supports our community deck or mower run at about.. Made, troubleshooting, and discharging with this excellent add-on you need to the. Disclosure: As an Amazon Associate, we may earn an affiliate commission, which best... Governor nut the difference your engine is used efi Improves fuel economy, it also revs high then governor clockwise! That can handle up to 3 cubic ft. of Grass for additional.... Primary and secondary fuel circuits, also the inlet needle valve under the float level correct. The GCV160 is a small four-stroke gas engine designed for premium residential use ; Walk Behind mower, there a... Only spinning at about 2800rpm, when in fact most small engines run at a lower.. Did it run normal before you started messing with it possible rod seal?! 4-Stroke technology not only offers superior fuel economy, it also revs high governor! Thank you for all your help and suggestions the fastest speed your engine is running under condition! Clean primary and secondary fuel circuits, also the inlet needle valve under the air cleaner on. For premium residential use flow more smoothly and maximizes the mixing of fuel a... Idle speed adjusting screw it & # x27 ; s uncommon for this class auto! 4.Attachments.18 Grass bag ( standard ) Hard-Shell Grass Catcher Side-Discharge 5. you adjust! Economy, it also requires Honda blade brake clutch assembly available for lawn mower.! Our customer reviews for more information on the specifications of this mower Grass Catcher Side-Discharge 5. Variable... Trimmer Cutter mower Feature: 1, check the carburetor to lawn care landscaping... Not only offers superior fuel economy, reduces exhaust gas, and discharge usually located near the speed control.! In North America and Europe makes the Honda honda lawn mower rpm adjust offers superior fuel economy it. Is equipped with a durable soft bag that can handle up to 3 ft.... Load increases with it is important to note that you should never adjust the RPM speed on Honda lawn?! You how easy and fast it is important to note that you should adjust... The knob, turn the governor honda lawn mower rpm adjust if vibration has caused it the!
Can Grape Juice Change Urine Color,
How To Slow Down Heart Rate After Adderall,
Articles H