Ignition Treble

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celticcase
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Joined: Tue Jun 16, 2015 4:03 pm

Ignition Treble

Post by celticcase »

Hey all. It's CJ here. I am restoring a 1970 n600, and I am having treble getting a spark with my ignition. I am working on getting the engine to run. I hooked up the battery and got the starter to work. The problem I'm having now, is that the spark plugs are not making a spark.
So far, I cleaned the contact points on the contact breaker and there seems to be current getting to the points.
However, when the engine is turning I don't see any spark between the breaker points. Is this normal?
I also check the condenser using the test from Honda n600 Owners Workshop Manual, the capacitor seems good.
Any help is much appreciated,
Thanks CJ.
celticcase
Posts: 0
Joined: Tue Jun 16, 2015 4:03 pm

Re: Ignition Treble

Post by celticcase »

Is there a way to check if my Ignition Coil is good?
Al Mahder
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Joined: Mon Jun 22, 2015 3:01 pm

Re: Ignition Treble

Post by Al Mahder »

See if the plugs spark. Remove them one at a time. Leave the lead attached and ground the plug against the engine. Don't hold or touch it. Have someone crank the engine. You should see a spark across the electrodes.
Al
zinc2u
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Joined: Tue Jan 15, 2013 4:45 am

Re: Ignition Treble

Post by zinc2u »

Hi CJ,
   Here are some things to try;
1.  Did you attach the blue wire from the ignition coil to the points?
2.  If you attach a voltmeter between where the blue wire connects to the points and engine ground,
you should see about 12 volts when you manually open the points (ignition switch on) and zero volts when the points are closed.
Sometimes this connection at the points is not done correctly and the points are always shorted to ground.
  If you manually open/close the points rapidly,  you should see sparks at the points gap and at the spark plugs (ground the threaded part).  Sometimes the spark in difficult to see in daylight.
3.  The manual tells the resistance you should measure at the coil pimary and secondaries.
4.  The ignition coil needs a good ground where its bracket connects to the frame and there should be a ground strap running from this connection to the engine.
5. Both plugs on this car fire at the same time but one cylinder is on its compression stroke and the other is on its exhaust stroke.  If both plugs do not give spark,  the car does not run well.  If you measure from spark plug contact on the left side to the spark plug contact on the right side,  you should see a resistance from 10,000 to 30,000 ohms.  If you don't see something like this,  one of your spark plug connectors may not be making good contact with the cable.  If you remove the connector, then you can measure the resistance inside the high voltage cable.
6.   The spark plug wires were stranded metal wires and were tucked held against the frame.  Check the insulation has not cracked and allowed the wire to have a path to the metal frame.  As a short-term fix,  you can wrap the cracks in electrical tape.
7.  Do your testing with some new spark plugs which are gapped at .028 to 0.032 inches.  I have had new plugs which have were used briefly and then the car sat for several months and then a spark would not develop across the gap.  Kinda strange but if you are trying to solve one problem, you don't need something else presenting itself as an obstacle.
8.  If you start seeing spark but the car doesn't start,  you may have the point gap set wrong (should be 0.012 to 0.014 inches).  Also, check the compression (a good engine should be around 160 psi) and timing.
good luck,
Dale
In a message dated 6/22/2015 10:25:37 P.M. Pacific Daylight Time, anzhonda600owners@yahoogroups.com writes:
> Hey all.
> It's CJ here. I am restoring a 1970 n600, and I am having treble getting a > spark with my ignition. I am working on getting the engine to run. I hooked up > the battery and got the starter to work. The problem I'm having now, is that > the spark plugs are not making a spark.
> So
> far, I cleaned the contact points on the contact breaker and there seems > to be current getting to the points.
> However, when the engine is turning I don't see
> any spark between the breaker points. Is this normal?
> I also check the condenser using the test from
> Honda n600 Owners Workshop Manual, the capacitor seems good.
> An y help is much
> appreciated,
> Thanks
> CJ.
celticcase
Posts: 0
Joined: Tue Jun 16, 2015 4:03 pm

Re: Ignition Treble

Post by celticcase »

Thanks for the help. Turns out my ignition coil is bad. So there was no spark because of it. The troubleshooting tips help narrow it down. Works awesome now.
CJ Kelly
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