Help needed - CBR 600 wont start
in [Tech]
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From: TigerJ on 15 May 2010 13:11 Hi, I hope someone can help me. I have a Honda CBR 600 (2002) that wont start. It has not been used much over the past year. When I took it for MOT about a week ago, it started fine. When I got to the MOT centre, it failed to start a few times. I was able to hear a click each time I pressed the starter button, which I assume is the starter solenoid, but the starter moter didnt spin up. After a few tries, the starter motor would jump into life. When I got home, it started once or twice with many failed attempts - just getting the click. Basically the started doesnt spin. Now it wont strat at all. All I get each time I hear the solenoid (once each time I press the starter). I think the battery is fine as I have fully charged it and the charger shows it as being full. Also, the headlight work fine. I havent tried bump starting it. Also, can I jump start a bike from a car battery - just to be 100% sure it isn't the battery. But I am fairly sure it isnt the problem. Has anyone any ideas? Regards.
From: The Older Gentleman on 15 May 2010 14:46 TigerJ <tspill(a)talk21.com> wrote: > I think the battery is fine as I have fully charged it and the charger shows > it as being full. Also, the headlight work fine. It's probably dead even so. > > I havent tried bump starting it. > > Also, can I jump start a bike from a car battery - just to be 100% sure it > isn't the battery. Yes >But I am fairly sure it isnt the problem. It's likely to be. Also likely to be a duff solenoid. Try running HD cable direct to the starter motor. -- BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple Suzuki TS250ER GN250 Damn, back to six bikes! Try Googling before asking a damn silly question. chateau dot murray at idnet dot com
From: . on 15 May 2010 14:55 On May 15, 10:11 am, "TigerJ" <tsp...(a)talk21.com> wrote: > Now it wont strat at all. All I get each time I hear the solenoid (once > each time I press the starter). Check all the electrical connections and fuzes. Also, check the starter circuit interlock switches on the clutch and sidestand. Sidestand switches cause a lot of problems in damp riding conditions... If there is corrosion on the terminals at the battery, that makes high resistance and the starter won't get enough "juice" to crank the engine. > > I think the battery is fine as I have fully charged it and the charger shows > it as being full. Automatic chargers will shut off to protect themselves even before the battery is charged if they sense that the battery is taking too much current, Maintenance-free batteries will last for 6 to 8 years without much attention, and you're at the 8 year mark now. One indication that a maintenance-free battery has reached the end of its useful life is that the sides of the plastic case bulge out or are sucked in, giving the impression of a starved horse with its ribs sticking out. Another indication that a maintenance-free battery has lost its water is white powder around the terminals. > Also, the headlight work fine. Got a voltmeter? If you turn the headlight on, it should stay bright for at least half an hour without the battery voltage dropping below 12 volts. > Also, can I jump start a bike from a car battery - just to be 100% sure it > isn't the battery. Yes, it's possible to jump start a motorcycle from a car battery. If the starter cranks the engine, just don't keep cranking endlessly for a minute at a time because the starter will get too hot. And motorcycle starters are very expensive if you have to buy a new one. The starter solenoid is called a "magnetic switch". http://webservices.motorsportdealers.com/parts/partImages/HOM/2/14MBWX/ILLUST/MBW4F/2701A.Gif Notice that there are two blade type fuzes on the solenoid. Check them. If they blow out, the motorcycle won't run. After cleaning the terminals and checking the fuzes, you can try jumpering across the two large terminals on the solenoid. If the battery is good and the terminals are clean and the starter still won't turn the engine at all, the only possibilities left are worn out starter brushes or a bad starter armature.
From: S'mee on 15 May 2010 22:58 On May 15, 11:11 am, "TigerJ" <tsp...(a)talk21.com> wrote: What TOG said...your battery is kaput get a new one.
From: Robert Roland on 16 May 2010 04:13
On Sat, 15 May 2010 18:11:41 +0100, "TigerJ" <tspill(a)talk21.com> wrote: >Also, the headlight work fine. Try starting while the headlight is on. If the light goes very weak, the battery is the culprit. If the headlight's brightness does not change when trying to start, it may be a starter problem. >Also, can I jump start a bike from a car battery It will probably be OK, but it is not completely safe. If the bike battery is very discharged, the inrush current could exceed safe levels. If one or more cells in the battery are shorted, the current will be even higher. You can, however, safely replace the bike battery with the car battery. But you must make sure the connections remain secure. If the battery gets disconnected while the bike is running, you risk damage to the bike's electronics. -- RoRo |