Question about Motorcycles
4 weeks ago I drove 30 mils stopped and turned of bike. 30 min. later I tried to start with no luck. Spun starter with jumper(ok) Suspected dead battery. Left bike bought new batt, charged and reinstalled, Bike started. Drove back parked in garage, attached battery maintainer. 1 week later drove to the same place, same result bike starter would not turn over. Push started OK drove back. Charged batt, checked switches, fuses, relays, wires and still no cranking. Shorted starter and starter turned but seemed slow. Tried to start bike and it started right up. Suspect engine heat is having effect on starter???
Hi,try replacing the starter motor brushes,if the starter motor seems to run slow more than likly brushes are worn,all the best
Posted on Sep 01, 2015
Sorry didn't actually see the post before my first comment, if it is only when the bike is warm or hot but not over heated I would suspect the same thing, faulty starter. "replace or rebuild"
Posted on Jul 12, 2013
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Posted on Jan 02, 2017
SOURCE: honda cbr 900 94 wont start
hi m8,, having a head ache i see,, my m8 had one of these,, still has,, and had the same problem, i see u have checked a few things there ,,and convinced they are ok,, then ,check u dont have an air leak in the air box,, and all clips are secure, and that u havent creased the fuel or vacume pipes under the tank,,if all is ok, behind the rear side panel is the aluminium lookin cdi box ,or ignitor, with about 5 or 6 wires connected to it,, u need to get this tested ,, or borrow 1 and try it,, there about 130 quid new, so test it 1st,, this does play up,, and 1 min it runs great,, next day 2 miles up the road itl stutter ,,or stop,, any probs m8,, shout and i will anserw,,cheers
Posted on Jan 30, 2009
SOURCE: Bike won't start
so where did you find the bad ground, and if I wire the negitive side directly to the frame can that be a permanant fix? Myne is doing the exact same thing
Posted on Jun 28, 2009
You didn't mention what year model your bike is so I'll just generalize my response. Since you said that you replaced the solenoid, I'll assume that your bike is a 1988 model or earlier.
Your bike has a starter relay if it still has the stock wiring on it. Harley has used a starter relay since 1965 on the first model of ElectraGlide. Usually, it's underneath the battery tray or the seat or around that area.
On the back of your solenoid, you have three wire connections. Two very large connectors and one small connector. Make sure your bike is out of gear (in neutral) and use an old screwdriver to short between the large connector that comes from the battery and the small wire connection. The starter should engage and try to start the engine. If the ignition switch is on, it will start the engine. The starter will turn using this method with or without the switch being in the "on" position. If the starter works using this method, the problem is in either the relay or the neutral switch. If the starter does not turn the engine over, the problem is in the solenoid.
Now, let's check a few things. The small connector on the back of the solenoid should have a green or pink (depending on year) wire on it. Using a voltmeter or a test light, make sure you have voltage at the connector when you press the starter button with the switch in the "ON' position. If not, follow the wire to it's source, the relay.
The starter relay can be one of several different designs used throughout the years. It could be a small plastic cube, a small metal can, or a round phonelic relay. The relay should have four connections on it. A "hot" wire, a wire from the handlebar switch, the wire going to the starter, and a ground. The ground may be through the case itself. On the older Shovelhead bikes (1984 and earlier) there was a small short black wire that ran from the starter relay to the transmission for the ground. This wire must be intact or the relay would not work due to lack of a ground.
When you turn the switch on, one of the wires to the starter relay should become "hot". When you press the start button, you should hear a slight click and another of the smaller wires should now be "hot" as well, the one going to the starter.
On some year (1972 and later) models, the neutral switch was wired in with the starter relay. This was to prevent the bike from starting while "in gear" by disabling the relay. You'll have to figure this one out for yourself since I don't know what year model your bike is.
Now, you said you had power to the solenoid when you pushed the starter switch. So, let's assume that the starter failed the first test to told you aboue. If so, the problem is still most likely in the solenoid. Inside the solenoid, there is a large plunger with a copper disc on it. When you depress the starter switch, the coil in the solenoid becomes magnetized and pulls the plunger towards the back of the solenoid. This does two things, it engages the starter drive with the ring gear on the outer clutch drum and makes a high current electrical connection. The copper disc makes contact between the two large connections on the back of the solenoid from the inside. This connects the battery to the starter motor through the solenoid. If the black phonelic plate on the back of the solenoid is cracked or the contacts inside of it are badly burned, it will not work.
Now, if the solenoid is working correctly and you are getting voltage to your starter, it could be the brushes or something inside the starter. This is indicated if the starter trys to turn the engine over but just can't. It won't have enough power if the starter field windings are bad.
I hope I've given you something here that will help you solve your problem. This is basically the electrical part of the starter system. There are mechanical parts as well. If you hear the starter turning but the engine doesn't turn over, you have a mechanical problem. You can either repost or you can contact me directly at email@example.com I'll help if I can. Good Luck!
Posted on Nov 05, 2009
sounds like the sprag clutch has failed. If you can see the large gear that sits behind the rotor and its turning but the rotor isnt turning the sprag clutch has failed. Very costly. usualy you would have a missed start eg not engaging every now and then before this fails all together.
Posted on Jul 01, 2010
SOURCE: I have a 2007 softail
Dog gone, sure is a lot of this lately. Seems every other question is this same problem. LOL
Ok, look at the end of your starter from the right side of the bike. You should see a five sided plate held on with three screws unless it has some kind of chrome cover on it. Just above this cover, there is a single wire connected to the starter. Unplug this wire and connect it to a test light or volt meter. Turn on the switch and press the start button. If the light lights up or your meter shows battery voltage, the problem is in your starter. If the light does not light up or the meter shows no voltage, replace the starter relay.
If the light does show voltage, remove the three screws that hold the five sided end plate onto the solenoid. There's a plunger and spring behind the plate. Take these parts out. Look into the solenoid and examine the large copper contacts in the solenoid. If they're burned badly, you can replace them. A kit is available for the starter solenoid that includes new contacts and a new plunger.
Posted on Oct 24, 2010
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