Honda ex400

Carburetor Replacement for Honda Sportrax TRX 400EX 1999-2004. Brand: Hoypeyfiy. 4.1 120 ratings. | Search this page. $4599. FREE Returns. Aftermarket Product with Premium Quality. Replaces part number:16100-HN1-003, 16100-HN1-013. Fitment:for Honda Honda Sportrax 400 TRX400 1999 -2008 ,for …

Honda ex400. 400ex Timing Problems. I just bought a 2002 400ex. The guy said he bored it one over, spent $600 on a top end rebuild and now it won't start. It will only sputter. I take it home and start looking at it. It seems to have good compression my compression gauge won't fit it. I look at the timing chain and put the motor at TDC.

Displaying parts for your 2000 HONDA TRX 400EX. Change or remove machine. HIDE STOCK SIZES. See stock sizes for this machine. Front Tire: 22x7x10; Rear Tire: 20x10x9; Front Sprocket: 15 Tooth; Rear Sprocket: 38 Tooth; Chain: 520X94; Spark Plug: DPR8Z; Main jet: 148; Pilot Jet: 38; 1999 Honda TRX …

Jul 6, 2012 · A bent valve or the decompression mechanism isn't working right and is holding a valve open. Or if you pulled the head and tryed to re-use the headgasket that would cause it. Besides that I would take the cam out and re-test. That narrows it down to hg, rings (unlikely), or valve seals. Also if you removed the cam did you make sure the little ... Displaying parts for your 2004 HONDA TRX 400EX. Change or remove machine. HIDE STOCK SIZES. See stock sizes for this machine. Front Tire: 22x7x10; Rear Tire: 20x10x9; Front Sprocket: 15 Tooth; Rear Sprocket: 38 Tooth; Chain: 520X94; Spark Plug: DPR8Z; Main jet: 148; Pilot Jet: 38; 1999 Honda TRX …There are 3 in this class, Suzuki LTZ400, Honda 400EX (new ones are called just 400X) and the Raptor 350. The suspension, power, chassis design and handling of the 400EX and LTZ400 are significantly and noticeably better than the Raptor 350. The 350 is a good quad, the other two are simply better. I would …The “C” in Honda’s “CRV” stands for “comfortable.” The complete phrase is “Comfortable Runabout Vehicle.” The original concept of the vehicle was to provide a model with “more acti...ALLOYBOLTZ - COMPATIBLE WITH HONDA TRX400EX 400EX FOURTRAX POLISHED STAINLESS ATV ENGINE BOLT SCREW KIT SET. $35.95 $ 35. 95. Get it Mar 5 - 6. In stock. Usually ships within 2 to 3 days. Ships from and sold by Alloyboltz. Total price: To see our price, add these items to your cart. Try …Honda is creating a dedicated EV division for the first time, as it attempts to catch up to its rivals in electrification of its lineup. Honda is establishing a division dedicated ...

Foruly 400ex Plastic Front Fender Supports, Front Fender Brackets with Thicker Material for Honda 400ex Trx 1999-2007 Durable and Sturdy Easy Installation, Not Easy to Break. 5.0 out of 5 stars 1. $55.99 $ 55. 99. FREE delivery Fri, Dec 22 . Arrives before Christmas.Here is the VIN location for the 2005-2009 400 EX. If it's not located where this shows you, then it should be on, either the left or right, front frame tube. Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!! You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the ...Jul 6, 2012 · A bent valve or the decompression mechanism isn't working right and is holding a valve open. Or if you pulled the head and tryed to re-use the headgasket that would cause it. Besides that I would take the cam out and re-test. That narrows it down to hg, rings (unlikely), or valve seals. Also if you removed the cam did you make sure the little ... The 2005 Honda 400EX (a.k.a. Sportrax TRX400EX) is the 2nd year of the ATV responsible for the resurgence of sport-quad racing. Boasting a 397-cc power mill, Pro-Link rear suspension, 72-mph top …According to the specifications page on Honda, the Honda CRV has a towing capacity of 1500 pounds. For a fuel-efficient SUV, the towing capacity of the CRV is in range with its com...25 Feb 2016 ... Get a spark plug socket and a compression tester for this step of the TRX400 top end rebuild: http://bit.ly/trx400ex-top-end-rebuild-1 This ...

Apr 1, 2008 · The 400ex has everything on it, from the suspension to the ergonomics to the power. POLY PERFORMANCE---------------> We Got What You Need! Some good info. I can pick up a 400EX for anywhere between $2200-3000 around here, and I already have an offer for $2000 for my Warrior. I might come out ok. If a Honda timing belt breaks while the engine is running, it can cause serious damage to the engine. This is because Hondas have interference engines. If a timing belt breaks in a...Oct 16, 2021 · The 2002 Honda 400EX is part of the SporTrax lineup, signaling the rebirth of sport riding and 4-strokes taking over four-wheelers. Boasting an XR400R-inspired engine, independent double-wishbone front suspension, and a 65-mph top speed, it continues to be the community’s favorite entry-level quad. Honda launched the SporTrax to improve the ... Year 2002. Make Honda. Model Trx 400EX. Category Sport Motorcycles. Engine -. Posted Over 1 Month. 2002 Honda Trx 400EX, Excellent condition, less than 50 hrs, rear view mirror, happy face flag just in case you have an emergency, well taken care off, owner is a female in her 50's $2,300.00 6072062052. 400ex Brake Pads For Honda TRX400X TRX 400X 2009-2014 / TRX400EX TRX 400EX Sportrax 400 2001-2008 / TRX400 EX Fourtrax 1999 2000 / TRX300EX Fourtrax 300 1993-2008 / TRX250X 1987-1992 Front and Rear. 224. 50+ bought in past month. $1699. FREE delivery Tue, Feb 13 on $35 of items shipped by Amazon.

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Single hydraulic 220.0mm disc with single-piston caliper. dimension specs. Overall Length: 72.2 in OR 1834 mm. Overall Width: 45.3 in OR 1151 mm. Seat Height: 31.9 in OR 810 mm. Wheelbase:The 2005 Honda 400EX (a.k.a. Sportrax TRX400EX) is the 2nd year of the ATV responsible for the resurgence of sport-quad racing. Boasting a 397-cc power mill, Pro-Link rear suspension, 72-mph top …タイプは交流、直流の使用できるEX400、EM400、直流専用のED300の3タイプ。. 全機種にCDI(電子点火)装置とオートチョークを採用。. 尚、EXには自動電圧制御装置(AVR)とオイル警告灯(オイルアラート)を標準装備するなど、デンタはレジャー用、業務用と ...17 Aug 2022 ... I end up trading my Yamaha TTR230 dirt bike for this 416cc big bore Honda 400ex. #BigBore, #TooMuhPower, ▻SUBSCRIBE: ...Insure your 2001 Honda for just $75/year.* Savings: We offer low rates and plenty of discounts. More riding freedom: You’re covered if you take your ATV off your property. No need for extra coverages. OEM parts in repairs: We use OEM parts in repairs and don’t depreciate anything.

See pricing for the Used 2002 Honda Civic EX Sedan 4D. Get KBB Fair Purchase Price, MSRP, and dealer invoice price for the 2002 Honda Civic EX Sedan 4D. View local inventory and get a quote from a ...2003 Honda TRX400EX Torque Specs. --> Specs & Reviews. Torque Specs. Brake System. Wheel/Suspension/Steering. Frame. Research 2003 Honda TRX400EX …The owner’s manual of Honda TRX 400EX recommends using SAE 10w-40 JASO T903. JASO T903 is a globally recognized standard for 4-stroke motorcycle oils. In other words, you cannot use a random car oil, you must use motorcycle oil.27 Oct 2020 ... Honda 400ex build assemble part 10 (videos will be coming fast so subscribe to keep notified). Assembling the bottom end left crankcase ...Honda 400EX Axcalibar Pro Racing Axle. $495.60. Shipping calculated at checkout. Add to cart. The Lone Star Racing Axcalibar Pro Racing Axles are one of the most highly recommended axles on the market for both racers and recreational riders. Each axle is backed by a LIFETIME WARRANTY unsurpassed by any other axle manufacturer.99-07 HONDA 400EX OEM DASH HANDLEBAR COVER RED PLASTIC TRX400EX 🔥FAST SHIP🔥 X (For: Honda) Opens in a new window or tab. Brand New. 5.0 out of 5 stars. 1 product rating - 99-07 HONDA 400EX OEM DASH HANDLEBAR COVER RED PLASTIC TRX400EX 🔥FAST SHIP🔥 X. $29.99. Top Rated Plus.25 Feb 2016 ... Learn how to adjust the valves on a Honda TRX 400EX ATV using a feeler gauge. Tutorial covers intake valve clearance adjustment and exhaust ...Honda TRX400EX Top End Rebuild | Part 1. RM YouTube Channel SUBSCRIBE. More Video Guides: Parts View All Parts. Tusk Top End Gasket Kit $4.99 – $54.99 MSRP: $9.99 – $64.99 You save up to 15% . Rated 4.44 out of five stars. ★★★★⯪ Compare . Quick View. Cometic Top End Gasket Set $19.88 – …2001 Honda TRX400EX1 SporTrax EX Values. Values Specifications Notes Print. Values. Info & Definitions. Excellent $15,595. Very Good $10,035. Good $6,180. Fair $3,685. ... Insure your 2001 Honda for just $75/year.* Savings: We offer low rates and plenty of discounts. More riding freedom: You’re covered if you take your ATV off your property. ...

Posted Over 1 Month. 2004 Honda Sportrax 400EX TRX400EX, Mountain Motorsports- 45 Years of Great Customer Service! - Call Mountain Motorsports today at 909-988-8988. Mountain Motorsports has been the place for motorcycle enthusiasts since 1970. We were started and are owned by enthusiasts.

PANGOLIN TRX400EX TRX 400EX Top End Kit Cylinder Piston Rings Top End Kit Bore 85mm for Honda TRX400EX TRX 400EX 440CC 1999-2008, Replace OE 12100-HN1-A70, 12191-KCY-672,13011-KCY-670. $7590. Save 6% with coupon. FREE delivery Fri, Feb 2. Honda introduces the 1999 TRX400ex Fourtrax in 1998! The engine was basically derived from the XR400 motocross, enduro, trail, street, dirt bike. The price was a whopping $5500! In 2000 the carburetor boot is upgraded to prevent cracking. The seat says "Fourtrax" in 1999 and 2000. 2001. OEM Honda 400EX Right Heel Splash Guard 80121-HN1-000ZA. Opens in a new window or tab. Brand New. 5.0 out of 5 stars. 1 product rating - OEM Honda 400EX Right Heel Splash Guard 80121-HN1-000ZA. $48.56. mcatvme (15,188) 99.8%. Buy It Now +$24.08 shipping. 2 watchers.Honda 400EX Top Speed. The Honda Motors Company introduced the remarkable Honda 400EX, an all-terrain vehicle (ATV) that made its debut in 1999 and continued to captivate enthusiasts until 2009. This quad featured a robust 28 horsepower engine that powered it to an impressive top speed of 72 MPH, …29 Mar 2021 ... Walk around, start up and ride in the backyard with a 2003 Honda Sportrax 400ex #sportquad #400ex Watch the first video here ...17 posts · Joined 2014. #1 · May 5, 2014. Another question from a new 99 400ex owner. After starting my 400 and warming up. When the bike idles down, it will not stay running. I have the idle adjusted high using the throttle adjustment at the cable end near the throttle. When I adjust it down to what should be a normal idle, …25 Feb 2016 ... Get a spark plug socket and a compression tester for this step of the TRX400 top end rebuild: http://bit.ly/trx400ex-top-end-rebuild-1 This ...15 Feb 2021 ... Today I bought a new quad. It's a 2005 Honda TRX 400ex , in relatively mint condition. Like! * it helps out a lot ( I'm broke)* Subscribe ...

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M MATI Rear Brake Caliper Master Cylinder Hose for Honda TRX400EX 400EX 1999-2004 43510-HN1-006 43250-HN1-006 43310-HN1-003. 3.3 out of 5 stars 3. $50.95 $ 50. 95. FREE delivery Mon, Jan 8 . Triumilynn 7/8" Brake Master Cylinder for Honda FourTrax 300, TRX 250 300 350 400 450, Rancher Foreman 350 400 Recon 250, 400ex Front Master …1999-2014 Carb for Honda 400EX 400 Factory Carburetor Assy 16100-HN1-A43 ATV US. Opens in a new window or tab. $31.83. hjl218 (9,614) 99.4%. Carburetor Carb for Honda TRX400EX TRX400 Ex Sportrax 400 2X4 2005 2006-2008. Opens in a new window or tab. $33.00. caltric (1,018,466) 98%. 670 sold.Step 2: Test the Main Fuse. Many ATVs have a main fuse that controls the electrical supply to the entire machine. On the Honda TRX 400 EX, the fuse is located in a protective housing near the battery. Remove the housing’s cover and the main fuse. The fuse should be a 15 amp and must be replaced if it’s the wrong ampage or if the filament is ...Displaying parts for your 2002 HONDA TRX 400EX. Change or remove machine. HIDE STOCK SIZES. See stock sizes for this machine. Front Tire: 22x7x10; Rear Tire: 20x10x9; Front Sprocket: 15 Tooth; Rear Sprocket: 38 Tooth; Chain: 520X94; Spark Plug: DPR8Z; Main jet: 148; Pilot Jet: 38; 1999 Honda TRX 400EX ATV Build.The price of the 2024 Honda CR-V starts at $30,850 and goes up to $41,550 depending on the trim and options. The CR-V's LX, EX, and EX-L are all gas-only models. The Sport Hybrid, Sport-L, and ...Aug 5, 2020 · I take the first ride on my 1999 Honda 400ex since the rebuild.This quad has some power! #400cc, #Honda, #Power, SUBSCRIBE: https://www.youtube.com/channel/U... - YouTube. 0:00 / 8:16. Why the Honda 400ex is Still Relevant | Iconic ATV Analysis | Better Choice than 450cc Race Quad? JellyForSale. 59.1K subscribers. …Nov 20, 2012 · Check for the unusual clunk sound of the timing chain. Some have the ticking valve sound, no big deal, just have to be on time doing the adjustments. If it has been modded, like intake, exhaust/pipe, that it had the proper jetting, or else it may have suffered from knocking/pinging, overheating problems. Sep 26, 2017 · The 400EX proved itself to us, and soon to the rest of the ATV world, as it became Honda’s biggest-selling model for several years running. TIMELINE. 1996: Honda introduces the XR400R, a motorcycle that would provide the engine for the initial EX prototypes. 1998: Honda introduces the ’99 TRX400EX with a price of $5495. Includes: 1999-2004 Honda TRX400EX Carburetor Repair Kit. TELL A FRIEND. Quantity: $34.46. Honda TRX400EX Related Parts. Honda TRX400EX O Ring Chain 1999-2008. $34.76. Add to Cart.Specifications. Make: Array. Model: 2006 Honda TRX 400 EX. Horsepower: 0@0. New for 2006. New Black color joins Red. Unique Features. The 397cc RFVC …400ex has no spark HELP I put my 2004 Honda 400ex away for winter last season running. Yesterday I took it out for summer, and of course did all the basic maintenance, and it won't start. I've established that it has no spark. What are some possibilities of what the problem might be? thanks! ….

Honda is creating a dedicated EV division for the first time, as it attempts to catch up to its rivals in electrification of its lineup. Honda is establishing a division dedicated ...During the first two weeks Honda's new HR-V was on the market, an impressive 6,381 of the tiny crossover SUV were sold. That's triple the rate of any other model in its category d...Dec 26, 2019 · VIDEO AMENDMENT: I have since been informed from a few viewers that the Kawasaki KFX450R was a 450cc race ATV with a reverse gear and electric start. I wasn... Bikes. Honda TRX400EX specifications. Published Oct 12, 2006. | Published Oct 12, 2006. Share. Engine: Air-cooled four-stroke single. Capacity: 397.2cc. Bore x …May 31, 2005 · 10.5 feet. Dry Weight: 386 pounds. Fuel Capacity: 2.6 gallons, including 0.4-gallon reserve. Colors: Red, Black. For highly experienced riders 16 years of age and older. Model: TRX400EX Engine Type: 397cc RFVC air-cooled dry-sump single-cylinder four-stroke Bore and Stroke: 85mm x 70mm Carburetion: 38mm piston-valve with accelerator pump ... covering everything you need to know to swap the 04/05 450r carb onto any year 400ex. very easy.If no spark, operate the kill switch a few times then return it to the "Run" position. Crank the motor over with the starter and look for spark jumping the plug gap again. Test for spark in a dark place so you can see spark when it happens.... then come back and report and we'll move on to the next steps.The 400EX’s front wheels used size 22 by 7-10 knobby radial tires and 174 mm dual disc brakes. Honda fitted the rear wheels with size 20 by 10-9 knobby radial tires and 220 mm single disc brakes. During the 400EX’s production run, Honda offered it in a number of color configurations, including black/white, red/black, all red and …Detailed specs and features for the Used 2022 Honda Civic EX including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more.The 400ex has a very very important proceedure necessary for checking oil level. And alot of people dont know this. To properly check your oil level you need to start the quad and let it idle without reving or spiking the throttle at all. If its colder then 30 degrees ambient air temp it needs to idle for 10-15 minutes. Honda ex400, 2003 Honda TRX400EX Torque Specs. --> Specs & Reviews. Torque Specs. Brake System. Wheel/Suspension/Steering. Frame. Research 2003 Honda TRX400EX …, Good morning, Quartz readers! Good morning, Quartz readers! France celebrates Bastille Day. This year’s military parade, which marks the 100th anniversary of America’s entry into W..., 2001 Honda TRX400EX Specs & Review. Specs & Reviews. Torque Specs. General Dimensions Frame Engine Drivetrain Electrical. Identification; Model Type: Utility: BASE MSRP(US) $5,699.00: Warranty: 12 ... 1999 FourTrax 400EX. 9. 1983 ATC 200X. 10. 1985 ATC 250R. Home ..., Fun, dependable, workhorse - these are just a few words to describe our favorite form of transport - the pickup, truck or ute ... depending on which part of the world you come from..., 11 Oct 2012 ... The 400ex has made history in the Atv industry it's the best Atv out there. 11:23 · Go to channel · 1999 Honda TRX 400EX ATV Build., The 400EX sports an air-cooled 397cc mill mated to a five-speed tranny without reverse. Sourced from a successful trailbike, the XR400, the motor was a proven workhorse. The rest of the quad rests on a tightly strung chassis, based in part on Honda's legendary TRX250R. Overbuilt for the mild motor, the chassis …, May 5, 2014 · 17 posts · Joined 2014. #1 · May 5, 2014. Another question from a new 99 400ex owner. After starting my 400 and warming up. When the bike idles down, it will not stay running. I have the idle adjusted high using the throttle adjustment at the cable end near the throttle. When I adjust it down to what should be a normal idle, it stalls. , 15 Feb 2021 ... Today I bought a new quad. It's a 2005 Honda TRX 400ex , in relatively mint condition. Like! * it helps out a lot ( I'm broke)* Subscribe ..., 2014. TRX400X. 2014 is sadly the last year for the Honda TRX 400ex (TRX 400x). Nothing has really changed from the 2008 Honda TRX400x model. Latest Posts. Honda …, 4 Honda CB1100 EX motorcycles in Florence, AL. 2 Honda CB1100 EX motorcycles in Conyers, GA. 2 Honda CB1100 EX motorcycles in Littleton, CO. 1 Honda CB1100 EX motorcycle in Burlington, WA. 1 Honda CB1100 EX motorcycle in Crystal Lake, IL. 1 Honda CB1100 EX motorcycle in Dallas, TX. 1 Honda CB1100 EX …, General. Dimensions. Frame. Drivetrain. Electrical. Research 2001 Honda TRX400EX Sportrax specs. Including Dimensions, Horsepower, Engine Size, Oil Capacity, and Tire …, A New Standard for Connectivity. The first-ever Honda with available Google built-in * and an extra-wide 12.3-inch touch-screen, the 2024 Accord offers intuitive, hands-free connectivity to your media, navigation, and more. Effortlessly stream music, check the weather, and control smart home devices using Alexa Built-in. *. , The 1975 Honda CB400 motorcycle was affordable, technically advanced, and deceptively quick. Learn more and see pictures of the lean 1975 Honda CB400. Advertisement The 1975 Honda ..., SUPERJJMJ Discussion starter. 1561 posts · Joined 2013. #9 · Jul 29, 2013. I wanna make sure the this one should last me a while the one in it now the guy I bought the 400ex said he just put a sealed autozone battery in it 6 months ago. YTX9 BS ATV Battery for Honda TRX 125 250 300 400 700 x XX EX Fourtrax …, Step 2: Test the Main Fuse. Many ATVs have a main fuse that controls the electrical supply to the entire machine. On the Honda TRX 400 EX, the fuse is located in a protective housing near the battery. Remove the housing’s cover and the main fuse. The fuse should be a 15 amp and must be replaced if it’s the wrong ampage or if the filament is ..., Feb 25, 2006 · Model: 2006 Honda TRX 400 EX. Horsepower: 0@0. New for 2006. New Black color joins Red. Unique Features. The 397cc RFVC engine draws its breath from the same engine that powered the bulletproof XR ... , Purchased a '07 Honda 400ex 2 days ago and. Took it up to Carolina adventure park all trail riding 4 different levels of trails 26,000 anc. Had a great time testing it out on these trails. , The scaled-down TRX90X allows kids to have some four-wheeling fun and make memories outdoors. Similar to the ATVs, Honda's side-by-sides are broken down by sport and rec/utility models. Honda's Talon family of sport side-by-sides has grown into six models, plus two special editions. Decide which features are best for you, …, Elite OEM (Original Equipment Manufacture) Parts Distributor for premium brands! FREE Shipping on orders of $149 or more! * Restrictions apply. Click here for details. Find 2004 Honda TRX400EX parts at up to 80% off MSRP at Partzilla.com. Free shipping available on our huge inventory of OEM Honda ATV parts!, covering everything you need to know to swap the 04/05 450r carb onto any year 400ex. very easy., Accord. Starting MSRP *. $27,895. Sport-L Hybrid shown in Radiant Red Metallic * at $34,875. , There are 3 in this class, Suzuki LTZ400, Honda 400EX (new ones are called just 400X) and the Raptor 350. The suspension, power, chassis design and handling of the 400EX and LTZ400 are significantly and noticeably better than the Raptor 350. The 350 is a good quad, the other two are simply better. I would …, Model: 2006 Honda TRX 400 EX. Horsepower: 0@0. New for 2006. New Black color joins Red. Unique Features. The 397cc RFVC engine draws its breath from the same engine that powered the bulletproof XR ..., 400ex has no spark HELP I put my 2004 Honda 400ex away for winter last season running. Yesterday I took it out for summer, and of course did all the basic maintenance, and it won't start. I've established that it has no spark. What are some possibilities of what the problem might be? thanks!, Oct 1, 2023 · The Honda 400EX is renowned for its impressive top speed. With a stock configuration, this quad can easily reach speeds of up to 70 miles per hour (112) kilometers per hour). This level of velocity makes it one of the fastest sport ATVs available on the market. However, speed can vary depending on factors such as rider weight, terrain, and ... , The Honda 400 EX has been a top enthusiast choice for years. This speedy quad is fun, sturdy, and versatile. With an aggressive body style and high-performance engine, there isn’t much you can do to improve this sport ATV. Until you check out SuperATV, that is. We offer the widest selection of top-quality aftermarket parts …, 25 Feb 2016 ... Get a spark plug socket and a compression tester for this step of the TRX400 top end rebuild: http://bit.ly/trx400ex-top-end-rebuild-1 This ..., 1999-2004 Fits Honda 400EX TRX400EX Yellow O-Ring Chain & Black Sprocket 13/38 94L. 4.6 out of 5 stars 3. $67.95 $ 67. 95. FREE delivery Dec 6 - 8 . Small Business. Shop products from small business brands sold in Amazon’s store. Discover more about the small businesses partnering with Amazon and Amazon’s commitment to empowering them., The 1969 Honda Dream 305 motorcycle combined power with convenience. Read about this important Honda and see pictures of a real dream machine. Advertisement The 1969 Honda Dream 30..., 27 Oct 2020 ... Honda 400ex build assemble part 10 (videos will be coming fast so subscribe to keep notified). Assembling the bottom end left crankcase ..., Honda TRX 400EX Cylinder Removal. Step 1: Remove the seat, fuel tank and plastics, then disconnect the battery, and remove the top motor mounting bar and spacer from the frame. Step 2: Remove the intake system, including the air filter housing and the carburetor, plus the exhaust system, including the header pipe and the muffler., Honda 400EX Top Speed. The Honda Motors Company introduced the remarkable Honda 400EX, an all-terrain vehicle (ATV) that made its debut in 1999 and continued to captivate enthusiasts until 2009. This quad featured a robust 28 horsepower engine that powered it to an impressive top speed of 72 MPH, …, Answer:0.028. Learn more about NGK Spark Plugs >. Get complete specs for your Honda TRX400EX SportTrax 400EX | 01-08 >.