baja 50 no spark
#1
09-28-2010, 04:40 PM
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#2
09-28-2010, 06:26 PM
The wires themselves. It is very common for the wires to have a break or a loose connection. It is also possible that one of the ignition kill switches is on or grounding.
You have to follow the power from the battery to the switch and also make sure that you have power at the CDI.
You need a volt meter to trace where your power is failing.
You have to follow the power from the battery to the switch and also make sure that you have power at the CDI.
You need a volt meter to trace where your power is failing.
#4
09-28-2010, 10:55 PM
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Yes, you need a meter. I second Mr.Firemouth's sound advice.
I understand the motive behind just changing stuff to see it will start working. Sometimes you get lucky. The problem with just blindly changing things is that often somewhere along the line you get a bad part and stuff it in. Then you have two problems - and two problems at the same time is usually ten times harder to figure out.
The procedure for no spark problems is to eliminate kill switch issues using a meter or just disconnecting it, measure the power to the CDI (which I'm fairly sure is high voltage AC from the stator on your quad), measure the AC trigger signal voltage, then look for pulses at the igntition coil primary.
The voltage regulator and battery charge circuitry has nothing to do with your "no spark" problem as long as the battery has enough charge to crank the engine over at a normal rate.
If it were me I'd put back all the old parts the way it was before you started swapping things. That way you most likely only have one problem to fix. Then start measuring stuff. There are lots of threads on trouble shooting 5 pin CDIs and the spark system on this site. Just to be absolutely sure please verify that this is a pic of your CDI:
If you need step by step help then get a meter at the ready and post back.
I understand the motive behind just changing stuff to see it will start working. Sometimes you get lucky. The problem with just blindly changing things is that often somewhere along the line you get a bad part and stuff it in. Then you have two problems - and two problems at the same time is usually ten times harder to figure out.
The procedure for no spark problems is to eliminate kill switch issues using a meter or just disconnecting it, measure the power to the CDI (which I'm fairly sure is high voltage AC from the stator on your quad), measure the AC trigger signal voltage, then look for pulses at the igntition coil primary.
The voltage regulator and battery charge circuitry has nothing to do with your "no spark" problem as long as the battery has enough charge to crank the engine over at a normal rate.
If it were me I'd put back all the old parts the way it was before you started swapping things. That way you most likely only have one problem to fix. Then start measuring stuff. There are lots of threads on trouble shooting 5 pin CDIs and the spark system on this site. Just to be absolutely sure please verify that this is a pic of your CDI:
If you need step by step help then get a meter at the ready and post back.
#5
06-08-2019, 09:11 PM
No spark on a baja 49 I have the meter now what
Yes, you need a meter. I second Mr.Firemouth's sound advice.
I understand the motive behind just changing stuff to see it will start working. Sometimes you get lucky. The problem with just blindly changing things is that often somewhere along the line you get a bad part and stuff it in. Then you have two problems - and two problems at the same time is usually ten times harder to figure out.
The procedure for no spark problems is to eliminate kill switch issues using a meter or just disconnecting it, measure the power to the CDI (which I'm fairly sure is high voltage AC from the stator on your quad), measure the AC trigger signal voltage, then look for pulses at the igntition coil primary.
The voltage regulator and battery charge circuitry has nothing to do with your "no spark" problem as long as the battery has enough charge to crank the engine over at a normal rate.
If it were me I'd put back all the old parts the way it was before you started swapping things. That way you most likely only have one problem to fix. Then start measuring stuff. There are lots of threads on trouble shooting 5 pin CDIs and the spark system on this site. Just to be absolutely sure please verify that this is a pic of your CDI:
Attachment 18528
If you need step by step help then get a meter at the ready and post back.
I understand the motive behind just changing stuff to see it will start working. Sometimes you get lucky. The problem with just blindly changing things is that often somewhere along the line you get a bad part and stuff it in. Then you have two problems - and two problems at the same time is usually ten times harder to figure out.
The procedure for no spark problems is to eliminate kill switch issues using a meter or just disconnecting it, measure the power to the CDI (which I'm fairly sure is high voltage AC from the stator on your quad), measure the AC trigger signal voltage, then look for pulses at the igntition coil primary.
The voltage regulator and battery charge circuitry has nothing to do with your "no spark" problem as long as the battery has enough charge to crank the engine over at a normal rate.
If it were me I'd put back all the old parts the way it was before you started swapping things. That way you most likely only have one problem to fix. Then start measuring stuff. There are lots of threads on trouble shooting 5 pin CDIs and the spark system on this site. Just to be absolutely sure please verify that this is a pic of your CDI:
Attachment 18528
If you need step by step help then get a meter at the ready and post back.
#6
06-09-2019, 01:49 AM
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