20 Most Recent 1998 Honda XR 400R Questions & Answers


Hi, Bundyair for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
XR400 Head TORQUE
Torque Specs HONDA SPECS XR650L XR650R XR600R XL600R XL600L
1996 2003 Honda XR400R Service Manual Moto Data Project
https://www.partsfish.com/page/oem-parts-for-honda
Honda XR400 Manual

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1998 Honda XR... | Answered on Feb 18, 2018


Hi, Matthew for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere $15 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
XR400 Sparkplug change
Honda XR250 Spark Plug Mod XR250R basics
HONDA XR400R XR 400R 1996 2004 BIKE WORKSHOP SERVICE MANUAL Download... $15
https://www.partsfish.com/page/oem-parts-for-honda
HONDA XR400R Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


1998 Honda XR... | Answered on Jan 13, 2018


Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the enrichner.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead acid batteries.
14. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
15. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
16. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections loose, or connected to the wrong cylinders.
17. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
18. Faulty neutral, clutch lever, or kickstand safety switch.
19. Faulty fuel pump or fuse or relay.
20. A stuck bent or burnt valve.
21. Tilt sensor needs a reset.
22. Security system not disarming alarm needs a reset.
23. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
XR400R won start that easy or not at all
Thread Problems starting XR400r
1996 2003 Honda XR400R Service Manual Moto Data Project
http://www.partsfish.com/page/oem-parts-for-honda
HONDA XR400R Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

1998 Honda XR... | Answered on Sep 06, 2017


Hi, Anonymous before testing any electrical component in the Light Circuit it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test because your battery may have 12.5 volts or more but little or zero amps causing the battery to be faulty and must be replaced, especially "AGM" batteries, also before diagnosing any turn signal/running light/parking light issue make sure the bulb is good and the light fuse has continuity with a test light. If you have replaced your OEM lights with one or all LED lights you are going to need a load equalizer.
If no turn signals work the cause could be a faulty turn signal module or the connector going to it, look for corroded, loose, or broken pins/sockets. Contact spray cleaner is great for removing corrosion.
If all four turn signals flash at the same time like hazard lights even though you only pressed one turn signal button then you have a LED light in the circuit and need a load equalizer that can be purchased from any motorcycle parts supplier.
If your speedometer does not function properly it will have to be fixed first because your turn signal module gets the data from the speedometer for normal turn signal function.
If your front turn signals don't work use a test light to check for power and ground at the bulb socket, then start backtracking the wiring through every wire connector to the turn signal switch/button and check for continuity, go all the way back to the fuse if necessary to find the cause of the malfunction.
If your rear turn signals don't work check your rear fender wiring harness connector first for corroded, broken, loose pins/sockets, power, and a good ground, the harness connector is usually located under the seat on the front of the rear fender then keep tracing the wiring look for obvious harness damage caused by the rear tire.
If you still can't find the malfunction backtrack from the rear fender wiring harness connector.
If one side does not work you could have a faulty turn signal switch or module check for continuity.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
How to Make LED turn signals flash
XR650L LED Turn Signal Problem 4Strokes com
MANUAL HONDA XR400
http://www.partsfish.com/page/oem-parts-for-honda
HONDA XR400R Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

1998 Honda XR... | Answered on Aug 09, 2017


Not recommended U should always use genuine nuts as head nuts must be torqued

1998 Honda XR... | Answered on Jan 06, 2012


You can't and you can't. Sorry...

1998 Honda XR... | Answered on Mar 16, 2011


Check to see if you have spark. Put a plug in the cap and touch the cylinder , kick it over to see if the plug is sparking. I kick mine 2 or 3 times to prime the cylinder holding decompression lever in. If it pops on full choke but does not start I go to half choke. If it does not start after 3 or 4 kicks , then I turn off the choke and kick it over 5 or 6 times with the decompression lever pulled to clear it. Then I will kick with no choke or half choke. Honda's are notorious for being cold blooded so when it starts let it warm up and do not be afraid to drive a short distance on half choke till the motor warms up a little.
When the machine is hard to start after sitting I usually start by removing the carburetor and shooting carburetor cleaner through the jets and passageways.I have always found my 96 xr400 to be a dependable starter with fresh gas and a clean carburetor. If it is flooded use the decompression lever to clear the cylinder.

1998 Honda XR... | Answered on Dec 31, 2010


If you are just changing the oil 1.8 quarts.
If you are changing the oil and filter 1.9 quarts.
If you disassembled the motor 2.3 quarts.
Use only JASO MA certified motorcycle oil. Remember to run the motor for 5 minutes before checking the oil level at the dipstick. The frame neck is where the dipstick is located. If you check the level with out running the motor you will read no oil on the dipstick and will probably end up overfilling the engine with oil.

1998 Honda XR... | Answered on Dec 07, 2010


Fouling a spark plug with unleaded fuel and wet fouling a spark plug with ethanol fuel is more common than you would think. Take out the old plug. Test for spark with a new plug. Then put in the new plug.

1998 Honda XR... | Answered on Sep 13, 2010


If I remember pull the nylon spacer in the middle of the spring out first, this will allow the spring to move away from the shaft

1998 Honda XR... | Answered on Apr 24, 2010


you may wont to change your fuel filter and run some good carb. cleaner in your fuel tank, concentrated or / seafoam /i prefer but check with your local parts store .,let us know how the mechanic in the bottle works . Good Day.

1998 Honda XR... | Answered on Mar 31, 2010


I use an air impact gun to tighten. Also with the fork off, try compressing it some while tightening the bolt may help. Yes, they do make a tool, but I've done many forks without needing it.

1998 Honda XR... | Answered on Mar 19, 2010


Double check the tolerances, a loose lock nut on a tappet can make noise. Some times a bad or missing exhaust o-ring can cause a ticking sound, make sure you remove the old exhaust gasket and install a new one.

1998 Honda XR... | Answered on Mar 17, 2010


here you go buddy: http://www.thumpertalk.com/forum/archive/index.php/t-357975.html

1998 Honda XR... | Answered on Jan 18, 2010


can be many things buddy stripe the top end and inspect it could be valves gone gasket cam shaft rocker arms etc only way to find out is too strip it your self and get back to me

1998 Honda XR... | Answered on Dec 29, 2009


It sounds like the fuel mixture is running extremely lean for some reason. Disassemble the carb and clean out the jets. Inspect any rubber parts between the carb and the intake. Make sure the intake manifold doesn't have an air leak.

1998 Honda XR... | Answered on Oct 08, 2009


It depends on the temperatures you run it in.Honda recommends SAE 10W-40 API : SF or SG.
In hot climates they work better with SAE 15W-50 semisynthetic.
I wouldn't recommend fully synthetic for every day's use.It is too thin and you while have to add some every 5-6 days of use.Usually fully synthetic oil is used in race.

1998 Honda XR... | Answered on Jun 07, 2009


Yes you can change your XR400 to electric start.
Just find a parted out 400EX 4wheeler.It may be easier to find a complete blowed motor and get everything you need at one time.But I did ship a complete bottom end to a guy in Italy and he did the conversion.

1998 Honda XR... | Answered on Jan 04, 2009


Hi crazy

Your bike has an automatic de-compression lever that helps when starting. This mechanism will make it feel like the bike has low compression. If it is maladjusted, it may be causing the problem

check here for adjustment procedures to be sure that it is set up correctly.

Other than that, low compression pretty much means top end rebuild.

regards
robotek

1998 Honda XR... | Answered on Dec 17, 2008

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