Question about 1989 Honda CBR 400 RR

1 Answer

HI , my friends CBR 400 1989 keeps blowing the main fuse. It can sometimes drive for up to 20 kms ,it starts to cut out and finally when he or I try to start it again it runs rough and blows the main fuse, I opened and cleaned the ignition and kill switch switch,rerouted the battery live and neutral leads.Cleaned all terminals from the relay to starter motor to alternator. The regulator ground was very coroded .In fact most of the electrics have seen too much water for my liking. He has ridden it for 800 kms without fail until now. Could it be the corrosive battery terminals(now spotless) have taken out some electrical component? I m at a loss here coz all continuity checks with all leads from relay,battery etc are spot on Matt Ireland

Posted by on

  • mattoleary2 Mar 28, 2011

    You re good !!

    the regulator centre pin ( feeding one of the yellow wires) had no resistance.

    The regulator looks goosed!!

    When we get a replacement reg should it be safe to ride the bike or could something else blow with it when I connect it?

    If I dissconnect the reg can he ride the bike to a garage without damaging other components?

    I know his battery wont be charging so he cant turn it off but I dont want to take anymore responsibility if this doesnt do the job and get him to a certified bike mechanic.

    Thanks matt

  • mattoleary2 Mar 28, 2011

    I think he has solved the problem but I wont know till I buy and fit the regulator.
    IF hes right -top marks !!!
    Thanks again
    Matt

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,591 Answers

First thing I'd be checking is the regulator. It's probably been degraded from the corroded ground or may have even taken in some water!

Posted on Mar 27, 2011

  • Norman Skinner
    Norman Skinner Mar 28, 2011

    If it were me, I'd just get the regulator, put it on and be done with it - I don't think anything else is likely gone, but of course I can't see the condition of anything so that's a call you'll have to make.
    Once the regulator is in, the battery will start charging properly again, and all should be well in the bike's universe.
    If you know there are other corroded items etc. you may want to take care of them before they become an issue.
    In short, we won't really know if there are other issues til that regulator is in.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Fuse (10 amps) that provides juice to temp gage, rpm, speedometer and fuel gage keeps blowing up.


Try to use a 20 fuze one if it burns out that quick use a bigger recemend using a 20 or 25 fuze

Jul 27, 2014 | 2001 Chevrolet Chevrolet Blazer

1 Answer

I have a dawoo matiz car .790cc year 2000.wich keeps blowing the e.c.m fuse and this cuts off the fuel supply. sometimes it starts ok then suddenly it blows again i checked the fuel pump and seems


Check exactly when you do have a blown fuse as you are driving and in turning or as you driving normally. Also check the wires between E.C.M and Engine. The fuel Supply cuts off surely as soon as the E.C.M Fuse is blown because the fuel supply is going through the E .C. M.

Aug 21, 2012 | Cars & Trucks

1 Answer

93 CBR900rr blows turn signal fuse when the front brake is pulled, i.e rear brake light comes on. Any ideas


Hi, Anonymous before diagnosing your blown fuse issue check the bottom of your seat if its metal and comes in close proximity to the positive battery post you need to take the necessary steps to ensure there is no contact (electrical tape, thick rubber insulation, hammer a dent in the seat bottom etc.) You are going to need a wiring diagram from your service manual, a test light, an ohmmeter and plenty of extra fuses.
If you turn on your ignition switch and immediately blow a fuse you have a hard/dead short and is usually easy to find. With a test light connected to the hot side of the blown fuse holder start stabbing the wire/s that leads away from the fuse holder and towards the ignition switch, you test light will illuminate validating the short. When the test light fails to illuminate you have passed the short and need to back up until the test light illuminates, then look in the immediate area for the short.
If you driving down the road for 30 minutes or 15 miles and blow a fuse you have soft/flying short and may take some time and patience to find.
If the main fuse/circuit breaker constantly blows/trips while riding you probably have a faulty battery terminal connection. Check battery terminals for damage or corrosion, check 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. Any other fuses that constantly keep blowing while riding are usually caused by a loose or corroded ground wire in the circuit, which means you have to check, inspect, test each and everyone with and ohm meter set on a low ohm scale 100 ohms or less . Simply touch one lead to the ground source and the other lead to the battery negative terminal, a reading of zero indicates a clean solid ground. Any number reading or infinity indicates a poor ground and needs to be repaired. Poor or weak grounds require excessive additional amperage to complete the circuit which in turn blows the small amperage fuse.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Indicator horn brakelight fuse keeps blowing CBR Forum Enthusiast forums...
keep blowing turn signal stop horn fuse CBR Forum Enthusiast forums for...
Honda CBR900RR Service Manual
http://www.partsfish.com/page/oem-parts-for-honda
Honda CBR900RR Fire Blade Owner Manual

Jan 31, 2012 | 1993 Honda CBR 900 RR Fireblade

1 Answer

1997 CBR 900RR keeps blowing instrument fuse


Hi, Vincentborca before diagnosing your blown fuse issue check the bottom of your seat if its metal and comes in close proximity to the positive battery post you need to take the necessary steps to ensure there is no contact (electrical tape, thick rubber insulation, hammer a dent in the seat bottom etc.) You are going to need a wiring diagram from your service manual, a test light, an ohmmeter and plenty of extra fuses.
If you turn on your ignition switch and immediately blow a fuse you have a hard/dead short and is usually easy to find. With a test light connected to the hot side of the blown fuse holder start stabbing the wire/s that leads away from the fuse holder and towards the ignition switch, you test light will illuminate validating the short. When the test light fails to illuminate you have passed the short and need to back up until the test light illuminates, then look in the immediate area for the short.
If you driving down the road for 30 minutes or 15 miles and blow a fuse you have soft/flying short and may take some time and patience to find.
If the main fuse/circuit breaker constantly blows/trips while riding you probably have a faulty battery terminal connection. Check battery terminals for damage or corrosion, check 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. Any other fuses that constantly keep blowing while riding are usually caused by a loose or corroded ground wire in the circuit, which means you have to check, inspect, test each and everyone with and ohm meter set on a low ohm scale 100 ohms or less . Simply touch one lead to the ground source and the other lead to the battery negative terminal, a reading of zero indicates a clean solid ground. Any number reading or infinity indicates a poor ground and needs to be repaired. Poor or weak grounds require excessive additional amperage to complete the circuit which in turn blows the small amperage fuse.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Fuse blowing issues need suggestions CBR Forum Enthusiast forums for Honda...
http://www.fireblades.org/forums/electronics/90265-cbr1000rr-07-keeps-blowing-10a-fuse-for-dash-speedo-display.html
Honda CBR900RR Service Manual
http://www.partsfish.com/page/oem-parts-for-honda
Honda CBR900RR Fire Blade Owner Manual

Jun 03, 2011 | 1997 Honda CBR 900 RR Fireblade

1 Answer

WILL START DRIVE A FEW BLOCKS , THEN SIT 5 MIN GO TO START AND WILL ONLY CRANK CHECK FUEL FUSE SOMETIMES BLOWN OTHER TIMES NOT HIT TANK THEN MAY START , MIGHT TURN OFF AND THEN MAY BLOW FUSE, REPLACE FUSE...


for 1 fuse blown evry so often then you must have a short somewhere, the fact that it will crank and not start is most likely ur fuel pump , had the same issue with getting fuel to start or keep car running, possible that short could be by the fuel pump, the fuel pump is located under the rear seat and if im not mistaken it is on the drivers side rear

Feb 15, 2011 | 2002 Lincoln LS

1 Answer

My 2000 Honda CBR 929 just died when riding turn the ignition nothing no power what so ever any solutions????


Look on or near your starter solenoid. The main fuse for the motorcycle is typically located on the starter solenoid. Replace the main fuse . There should be a spare under the under the cover. Sometimes the Honda flat fuses look good but have actually cracked with age and are no longer flowing electricity. When the main fuse blows you lose all power to the motorcycle . Be sure to get spare fuses at the local Honda dealer , it is a dealer only part.

Nov 22, 2010 | 2000 Honda CBR 929 RR Fireblade

1 Answer

Bike cuts out at 10,000 rpm


Eventually it won't start at all if you keep redlining her like that. My advice to you is get a faster bike.

Jun 20, 2009 | 2005 Honda CBR 125 R

1 Answer

Keeps blowing fuses!!!


HI ..PUT AN AMP METER IN LINE TO SEE WHAT THE AMP IS DRAWING..WHEN IT IS CRANKED UP ..IS 20 AMP WHAT IT CALL FOR ON THE AMP IF SO I WOULD NOT GO ANY HIGHER.....BUT IF YOU HAD JUST USED 20 AS A STARTING POINT FOR AN AMP-AGE...SOMETIMES IT IS BETTER THAT THE FUSES BLOW ONCE IN AWHILE THAN THE AMP...ALSO CHECK FOR A LOOSE GROUND.....GOOD LUCK

Jan 29, 2009 | Planet Audio VX2002 Car Audio Amplifier

Not finding what you are looking for?
1989 Honda CBR 400 RR Logo

Related Topics:

78 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

yadayada
yadayada

Level 3 Expert

75822 Answers

Mike

Level 3 Expert

4336 Answers

Are you a Honda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...