Planet Minis

pudgerado · 10-09-2009, 02:50 PM

ok guys, i'm new here so bear with me. I recently bought a 91 z50 for 50 bucks and the guy said it needed a new coil, so i bought a cheap universal coil and it still wont fire. Then, i took the stator cover off and cleaned all the contact points and still no fire. I took the cdi off and put it on another bike to see if it was the problem and it ran fine on the other bike. so thats obviously not the problem. and of course i put a new plug in it. Do you think the stator may just be bad?

ducatilover · 10-09-2009, 03:21 PM

the 91 z50r does not have points. Its CDI. Check the #s on the motor. If you have points, you have an older motor on your bike which is probably 6v. The '91 motor is 12v. Tha could explain why you dont have spark.

pudgerado · 10-09-2009, 03:24 PM

No, i know its CDI. I just sanded and cleaned inside the flywheel and the stator because they were dirty and rusty. it looked like it had sat outside without the stator cover on it or something.

ducatilover · 10-09-2009, 04:03 PM

You tried grounding the spark plug to the head and no spark? If everything else worked on the other bike then you may have a bad stator. Double check your connections on your stator. Make sure nothing is loose.

pudgerado · 10-09-2009, 04:29 PM

Yeah i tried all that. The kill switch is messed up, but if i just left the 2 wires that go to it unplugged it should get fire, since it just grounds it out. correct? also i may break out the multimeter and check the 2 wires coming out of the stator. Do you have any idea what kind of reading i should get?

ducatilover · 10-09-2009, 04:58 PM

Not off the top of my head. I dont know if my manual has any info on that. Ill have to check later tonight.

Z · 10-09-2009, 06:03 PM

I have a 1998 Z50R Stator assembly and flywheel that I guarantee to work and will let it go for cheap.

Drop me an email. Dan@honda50.com

jymisuncst · 10-09-2009, 06:20 PM

Can you post a picture of the stator assemble... Just to see what your dealing with. I can take readings off of mine if your interested. I have two great running newer Z50R's (93 and 97).
Cheers.

Danman2540 · 10-09-2009, 07:37 PM

I think the 2 killswitch wires need to be twisted together to get fire. Try that

pudgerado · 10-10-2009, 02:48 AM

ok guys, i got the required volt readings from another member, so i'm gonna break out the multi meter tomorrow and see whats up

tepco · 10-12-2009, 07:29 PM

Not 100% sure but if it has a neutral safety cut off the contact may be bad, try grounding the neutral safety wire to get a spark. That was the problem with one of the trx70' I'm working on. Sory dont know the color of the wire off hand.

mexicanyella · 10-14-2009, 11:16 AM

I've got a factory service manual for '88-'89, '91 Z50Rs here. If the info you've gotten so far doesn't do the trick, let me know.

10-09-2009, 02:50 PM	#1 (permalink)
pudgerado PM Newbie Join Date: Oct 2009 Posts: 4	'91 z50r no spark ok guys, i'm new here so bear with me. I recently bought a 91 z50 for 50 bucks and the guy said it needed a new coil, so i bought a cheap universal coil and it still wont fire. Then, i took the stator cover off and cleaned all the contact points and still no fire. I took the cdi off and put it on another bike to see if it was the problem and it ran fine on the other bike. so thats obviously not the problem. and of course i put a new plug in it. Do you think the stator may just be bad?

10-09-2009, 03:21 PM	#2 (permalink)
ducatilover 2nd Gear Member Join Date: May 2008 Location: Peoria, AZ Posts: 621 My Mood:	Re: '91 z50r no spark the 91 z50r does not have points. Its CDI. Check the #s on the motor. If you have points, you have an older motor on your bike which is probably 6v. The '91 motor is 12v. Tha could explain why you dont have spark.

10-09-2009, 03:24 PM	#3 (permalink)
pudgerado PM Newbie Join Date: Oct 2009 Posts: 4	Re: '91 z50r no spark No, i know its CDI. I just sanded and cleaned inside the flywheel and the stator because they were dirty and rusty. it looked like it had sat outside without the stator cover on it or something.

10-09-2009, 04:03 PM	#4 (permalink)
ducatilover 2nd Gear Member Join Date: May 2008 Location: Peoria, AZ Posts: 621 My Mood:	Re: '91 z50r no spark You tried grounding the spark plug to the head and no spark? If everything else worked on the other bike then you may have a bad stator. Double check your connections on your stator. Make sure nothing is loose.

10-09-2009, 04:29 PM	#5 (permalink)
pudgerado PM Newbie Join Date: Oct 2009 Posts: 4	Re: '91 z50r no spark Yeah i tried all that. The kill switch is messed up, but if i just left the 2 wires that go to it unplugged it should get fire, since it just grounds it out. correct? also i may break out the multimeter and check the 2 wires coming out of the stator. Do you have any idea what kind of reading i should get?

10-09-2009, 04:58 PM	#6 (permalink)
ducatilover 2nd Gear Member Join Date: May 2008 Location: Peoria, AZ Posts: 621 My Mood:	Re: '91 z50r no spark Not off the top of my head. I dont know if my manual has any info on that. Ill have to check later tonight.

10-09-2009, 06:03 PM	#7 (permalink)
Z 5th Gear Member Join Date: Sep 2003 Location: KANSAS Posts: 8,538	Re: '91 z50r no spark I have a 1998 Z50R Stator assembly and flywheel that I guarantee to work and will let it go for cheap. Drop me an email. Dan@honda50.com

10-09-2009, 06:20 PM	#8 (permalink)
jymisuncst PM Newbie Join Date: Dec 2008 Location: Seminole, Florida Posts: 31 My Mood:	Re: '91 z50r no spark Can you post a picture of the stator assemble... Just to see what your dealing with. I can take readings off of mine if your interested. I have two great running newer Z50R's (93 and 97). Cheers.

10-09-2009, 07:37 PM	#9 (permalink)
Danman2540 1st Gear Member Join Date: Jan 2007 Location: St Louis MO Posts: 210 My Mood:	Re: '91 z50r no spark I think the 2 killswitch wires need to be twisted together to get fire. Try that

10-10-2009, 02:48 AM	#10 (permalink)
pudgerado PM Newbie Join Date: Oct 2009 Posts: 4	Re: '91 z50r no spark ok guys, i got the required volt readings from another member, so i'm gonna break out the multi meter tomorrow and see whats up

10-12-2009, 07:29 PM	#11 (permalink)
tepco PM Newbie Join Date: Dec 2005 Location: Greensboro N.C. Posts: 91	Re: '91 z50r no spark Not 100% sure but if it has a neutral safety cut off the contact may be bad, try grounding the neutral safety wire to get a spark. That was the problem with one of the trx70' I'm working on. Sory dont know the color of the wire off hand.

10-14-2009, 11:16 AM	#12 (permalink)
mexicanyella El rey de los puntos Join Date: Aug 2008 Location: Troy, MO Posts: 972	Re: '91 z50r no spark I've got a factory service manual for '88-'89, '91 Z50Rs here. If the info you've gotten so far doesn't do the trick, let me know.

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