|
|
General Discussion
Started by billb at 07-03-2010 1:33 PM. Topic has 20 replies.
  
|
|
Sort Posts:
|
|
|
|
 07-03-2010, 1:33 PM
|
billb
 
Joined on 05-13-2009
Orlando
Posts 52
|
|
|
I was out on a ride this AM with 2 buddies, about 42 miles from home, after not quite 2 hours, cruising at 50 mph or so, engine just quit. Half tank of gas, swithched to reserve, no difference. turned over, would not re start, Main fuse appeared good, after handling it engine started. Prior to starting lights operated, Replaced main fuse, just to be sure it was not a faulty connecttion. engine started, rode anothe mile, died again. won't restart. 7 hours later, after towing, still won't start, turns over quickly.
where do I start?
Bill B
Orlando, FL
79 CX 500
|
|
|
|
|
Report
|
|
|
|
|
07-03-2010, 3:15 PM
|
Harold
Joined on 12-28-2006
Beside Washademoak Lake, N.B. Canada
Posts 851
|
Re: Bike just quit running
|
|
|
|
|
|
Have you checked to see if you have spark? The following is from a post by DaveF;
When you check for spark, the proper way is to use a spark plug with the
coil lead attached to it and have the metal spark plug base touching
the engine block or a cylinder head (while rolling the engine over with the starter) . You cannot test for spark to the
valve covers because they are insulated from the heads.
If you have no spark, you can try the following tests;
There is a plug under the seat of the bike that has 3 yellow wires
coming from the stator, you can try starting the bike with that plug
unplugged.
If the
bike does start with it unplugged it will run but will not charge the
battery.
You can also try unhooking the
black and white wire that is plugged into the CDI. This wire comes from
the kill switch and unplugging it would eliminate the kill switch
causing the problem, if it starts with this unhooked you will not be
able to turn the bike off without stalling it out or plugging the wire
back in.
If it still does not start, see this post at Shep's site for resistance tests on the wires coming from the stator to the cdi
http://globalcxglvtwins.hostingdelivered.com/viewtopic.php?f=8&t=298
"People are more violently opposed to fur than leather because it's safer to harass rich women than biker gangs."
1978 CX500
1980 CX500 Custom
1981 CX500 Custom
1982 GL500 Silverwing
1975 XL-100
http://www.myspace.com/downwiththebutterfly
|
|
|
|
|
Report
|
|
|
|
|
07-04-2010, 4:44 AM
|
Reg in Bristol
Joined on 03-11-2006
Bristol UK
Posts 782
|
Re: Bike just quit running
|
|
|
|
|
|
As Harold says, check for spark
If theres none, do the the suggested black/white wire disconnect as sometimes the kill switches
go short
You can do the stator check but generaly speaking they dont fail totally and suddenly
I'd susopect the CDI box as they tend to go with little or no warning
If the stator checks out OK
do a DC voltage test on the yellow pink wires from the CDI to coils
Heres how:
disconnect the black/white from the CDI
disconnect the yellow and pink CDI to coil wires
With a digital meter set to read DC voltage in the 250V range, connect the black meter probe
to battery neg and put the red probe in say the yellow tube against the brass contacts while you
crank the motor for a few seconds.
Ditto the pink connector.
Its a crude but useful test and on my meter I expect to see 150-200V flicker on the display
on a good working CDI and have seen as low as 6v on failed unit.
Hopefully thsi will help you see if the CDI has popped its clogs or not .
The 'Mongrel' is on the road
78 frame, ZAB gubbins, 82 'TI' motor, Suzuki clocks, MZ screen
and gaiters, Kawasaki master cylinder, BMW horns
DIY wiring
and all thrown together with a fanatical inattention to detail :-)
|
|
|
|
|
Report
|
|
|
|
|
07-13-2010, 5:00 PM
|
Bantyman
Joined on 05-06-2010
Utah
Posts 20
|
Re: Bike just quit running
|
|
|
|
|
|
Howdy, I had this same thing happen to me yesterday about 15 miles from home after about 7 miles of riding. I was at a stop light and it seemed like I hit the kill switch or something. All the lights worked and it turned over fine.
Now that I’ve got it home I pulled the black/white wire to test the kill switch and it didn’t make a difference still no start. I pulled the 3 yellow plug out and it started right up. So what does this mean? Something to do with the charging system? I did have the battery die around two months ago but I’ve just plugged in a charger ounce a week and haven’t had any problems since.
I saw this from Harold.
“There is a plug under the seat of the bike that has 3 yellow wires coming from the stator, you can try starting the bike with that plug unplugged.
If the bike does start with it unplugged it will run but will not charge the battery.”
Are you saying that I can just ride it like this until the battery dies? If so what kind of damage is being done by riding it?
I love this forum by the way everyone here has been very helpful.
Josh
79 CX500 Custom
|
|
|
|
|
Report
|
|
|
|
|
07-13-2010, 5:16 PM
|
Shep
Joined on 01-30-2007
UK.2x1980CX500A
Posts 7,647
|
Re: Bike just quit running
|
|
|
|
|
|
|
|
|
07-13-2010, 5:46 PM
|
Bantyman
Joined on 05-06-2010
Utah
Posts 20
|
Re: Bike just quit running
|
|
|
|
|
|
I don't understand Shep? Doesn't my 79 also use the same CDI ignition as his?
79 CX500 Custom
|
|
|
|
|
Report
|
|
|
|
|
07-13-2010, 5:47 PM
|
Harold
Joined on 12-28-2006
Beside Washademoak Lake, N.B. Canada
Posts 851
|
Re: Bike just quit running
|
|
|
|
|
|
Shep, this bike is a 79 and he unplugged the alternator and the bike started.
Bantyman, yes you can ride the bike but the battery will not charge. The headlight and other lights will be drawing power from the battery that will not be replaced. The CX (78-81)will run with a dead battery but you may have to push start it if the battery gets low.
One of the charging windings on the stator probably has a short to ground. You will have to take the engine out to replace the stator.
"People are more violently opposed to fur than leather because it's safer to harass rich women than biker gangs."
1978 CX500
1980 CX500 Custom
1981 CX500 Custom
1982 GL500 Silverwing
1975 XL-100
http://www.myspace.com/downwiththebutterfly
|
|
|
|
|
Report
|
|
|
|
|
07-13-2010, 6:28 PM
|
Bantyman
Joined on 05-06-2010
Utah
Posts 20
|
Re: Bike just quit running
|
|
|
|
|
|
Thanks Harold, I don’t think that the charging system has been working for a while now.
Until I have the time and money to pull the engine and fix the stator, will it do damage to anything other than the battery to ride it charge the battery and ride it?
79 CX500 Custom
|
|
|
|
|
Report
|
|
|
|
|
07-13-2010, 6:55 PM
|
Harold
Joined on 12-28-2006
Beside Washademoak Lake, N.B. Canada
Posts 851
|
Re: Bike just quit running
|
|
|
|
|
|
I don't think it will hurt to drive it with the alternator unplugged, I am not positive of this though. I would tape the ends of the plugs with electrical tape just to be certain they could not short out by touching something.
It is possible that your bike was charging a little bit before but not
at 100 percent,,it will not be charging at all now, so you may need to
charge the battery more frequently than you have been.
Depending on where you live it may not be a good idea to drive with a battery that could go dead, if you stall out in traffic or your brake and signals quit working,, it is not the safest thing to be doing. If you are on back country roads this may not be as much of an issue as in a town or city.
"People are more violently opposed to fur than leather because it's safer to harass rich women than biker gangs."
1978 CX500
1980 CX500 Custom
1981 CX500 Custom
1982 GL500 Silverwing
1975 XL-100
http://www.myspace.com/downwiththebutterfly
|
|
|
|
|
Report
|
|
|
|
|
07-14-2010, 1:50 AM
|
Shep
Joined on 01-30-2007
UK.2x1980CX500A
Posts 7,647
|
Re: Bike just quit running
|
|
|
|
|
|
 Harold wrote: | Shep, this bike is a 79 and he unplugged the alternator and the bike started.
Bantyman, yes you can ride the bike but the battery will not charge. The headlight and other lights will be drawing power from the battery that will not be replaced. The CX (78-81)will run with a dead battery but you may have to push start it if the battery gets low.
One of the charging windings on the stator probably has a short to ground. You will have to take the engine out to replace the stator.
|
|
Good point.It does look like a grounded Stator which is bleeding the current from the system.
My Music
http://www.reverbnation.com/pauldouglas/
Join Just In Case :)
http://globalcxglvtwins.hostingdelivered.com/
Id quot circumiret, circumveniat
|
|
|
|
|
Report
|
|
|
|
|
07-14-2010, 6:37 PM
|
DARK FATHER
Joined on 07-12-2010
Posts 6
|
Re: Bike just quit running
|
|
|
|
|
|
When this similar thing happened to my CX500 it was the CDI.
|
|
|
|
|
Report
|
|
|
|
|
07-16-2010, 5:31 AM
|
Bantyman
Joined on 05-06-2010
Utah
Posts 20
|
Re: Bike just quit running
|
|
|
|
|
|
Well bad news… I finally had some time to mess with my problem again.
The other day when I went out and tried starting the bike I experimented with unplugging the kill switch and the 3 yellow plug like I said and got it to start with the 3 yellow plug disconnected. When I went out last night to try and test ride it (to see how long I could go before the battery died) it started right up (with the 3 yellow plug disconnected) and I let it run at idle for a couple of minutes. While I was reaching for something in the garage the idle suddenly slowed way down and died before I could get to it and now it won’t start again, like before regardless of whether or not the 3 wires are plugged in. Do I need to assume that it is the CDI?
Does anyone know of someone in or near Utah that might be close enough to let me test it out?
79 CX500 Custom
|
|
|
|
|
Report
|
|
|
|
|
07-16-2010, 6:02 AM
|
Shep
Joined on 01-30-2007
UK.2x1980CX500A
Posts 7,647
|
Re: Bike just quit running
|
|
|
|
|
|
|
|
|
07-16-2010, 8:55 AM
|
raulbajamx
Joined on 02-04-2009
San Diego Ca/Tijuana Baja MX
Posts 281
|
Re: Bike just quit running
|
|
|
|
|
|
i just posted a similar case but mine had absolutely no current no lights nada ,,i check the main fuse,,,it was late at night ,good thing i made it home.The next day she was OK
i think i need training wheels on gl650i
|
|
|
|
|
Report
|
|
|
|
|
07-16-2010, 9:01 AM
|
Bantyman
Joined on 05-06-2010
Utah
Posts 20
|
Re: Bike just quit running
|
|
|
|
|
|
My battery is good. I still get all the lights and it turns over fine.....
79 CX500 Custom
|
|
|
|
|
Report
|
|
|
|
|
07-16-2010, 9:11 AM
|
Shep
Joined on 01-30-2007
UK.2x1980CX500A
Posts 7,647
|
Re: Bike just quit running
|
|
|
|
|
|
|
|
|
07-16-2010, 2:08 PM
|
Harold
Joined on 12-28-2006
Beside Washademoak Lake, N.B. Canada
Posts 851
|
Re: Bike just quit running
|
|
|
|
|
|
Have you done voltage and resistance checks on the blue and white wires coming from the stator?
There is a link to the stator resistance checks in my first post in this thread.
"People are more violently opposed to fur than leather because it's safer to harass rich women than biker gangs."
1978 CX500
1980 CX500 Custom
1981 CX500 Custom
1982 GL500 Silverwing
1975 XL-100
http://www.myspace.com/downwiththebutterfly
|
|
|
|
|
Report
|
|
|
|
|
07-19-2010, 5:24 PM
|
Bantyman
Joined on 05-06-2010
Utah
Posts 20
|
Re: Bike just quit running
|
|
|
|
|
|
Alright, I just checked the resistance from the stator. I don’t know how to read the readings but here they are. Can someone tell me what they mean? This is what I’ve got out of it….
White to Blue 79.6
Green to White 296
Orange to Green 118
Light blue to Green 118
Orange/Red to Green 95.7
Light blue/Red to Green 98.8
I’d like to test my CDI. I was wondering if someone might have one I could rent or if I might be able to send mine to a “trustworthy” person to see if it might be bad also.
Thanks for the help.
Josh
79 CX500 Custom
|
|
|
|
|
Report
|
|
|
|
|
07-19-2010, 5:33 PM
|
Bantyman
Joined on 05-06-2010
Utah
Posts 20
|
Re: Bike just quit running
|
|
|
|
|
|
I’ve replaced the main fuse. I haven’t changed the holder but it seems fine and I haven’t noticed any heat building up. The bike was in really really good shape only having 9000 miles when I got it this year. All the wiring seems to be in good soft shape. I’m really bummed that this happened. I’ve decided I’m going to do what ever it takes to get it going even If I have to dump more money into it than I paid for it :O)
I’m thinking I’ll try and get in on a group buy for a cdi if anotherone comes around. I’d like to get this bike in top shape.
79 CX500 Custom
|
|
|
|
|
Report
|
|
|
|
|
07-20-2010, 6:42 AM
|
Harold
Joined on 12-28-2006
Beside Washademoak Lake, N.B. Canada
Posts 851
|
Re: Bike just quit running
|
|
|
|
|
|
Bantyman,
I think your problem is probably in your stator. The white to green reading is out of spec.You said it has not been charging for a while now,,then it seems as if it developed a short(stalled and would not start until you unplugged the charging windings, now it will not even start with them unplugged)
You should try reading the AC voltage on the blue and white wires. (see this thread)
Unplug the blue and white wire plug, and with a volt meter set to read up to approx 150 VAC
place the positive lead on on the white spade connector on the stator side of the plug and the negative lead on the negative post on your battery or another good ground point,(make sure the yellow wire plug is unplugged while testing) then turn the engine over with the starter. Ideally you should have 90 volts or so but could be less and still work.
Once you have tested the white wire then you should also test the blue wire following the same procedure, you should have higher voltage on it. Let us know what these readings are. If you do have low voltage on the white wire, you may be able to try doing a "blue wire fix" to determine if your CDI is still working.
"I’m thinking I’ll try and get in on a group buy for a cdi if anotherone
comes around. I’d like to get this bike in top shape.
"
The ignitech CDI runs off of battery power, I am pretty sure that you have a charging problem so you would still need to replace your stator. If you did go with the ignitech, you could buy the cheaper GL type stator though.
"People are more violently opposed to fur than leather because it's safer to harass rich women than biker gangs."
1978 CX500
1980 CX500 Custom
1981 CX500 Custom
1982 GL500 Silverwing
1975 XL-100
http://www.myspace.com/downwiththebutterfly
|
|
|
|
|
Report
|
|
|
|
|
07-20-2010, 11:08 AM
|
Bantyman
Joined on 05-06-2010
Utah
Posts 20
|
Re: Bike just quit running
|
|
|
|
|
|
Harold, I'll test them as soon as I get home this evening.
Can you give me more information on the possiblity of using the GL Stator?
Thanks
79 CX500 Custom
|
|
|
|
|
Report
|
|
|
|
|
Honda CX500 & G... » CX500 GL500 Tra... » General Discuss... » Bike just quit running
|
|
|
|