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Spark-check...Compression-check...Fuel-oh Yes...no ignition on #3/4

After the frustration that was the end of the Canuck's season, I went back to the garage to triple check resistances. I had this nagging doubt that the overload reading I was getting on the 1/4 secondary resistance was just, well...wrong. Turns out it wasn't, and it explains the earlier issue with #1 cylinder not firing.

I pulled all of the plug caps off, which I have done before, and thought I had retrimmed them all. Turns out, I had done the leads for 2, 3, and 4, but not that of #1. The end of #1 lead was shiny and hard, but there was almost a "glue" on the outside.

Here are the numbers from tonight:

1/4 secondary with caps: OL
1/4 secondary without the caps: 11.52 kOhm
# 4 cap: 8.0 kOhm
OLD #1 (stock) cap: 1.6-1.9 MOhm (oh oh!)
NEW #1 (NGK) cap: 4.8 kOhm

New 1/4 secondary resistance (with caps) 24.3 kOhm

Compare that to 2/4 readings with and without the caps:

2/3 secondary (no caps): 12.18 kOhm
#2 cap: 8.3 kOhm
#3 cap: 10.6 kOhm
2/3 with caps: 32 kOhm

Primary resistances:

1/4 coil 4.5 Ohm
2/3 coil 4.3 Ohm

Too late to get into trying to start it up, but I should at least get better spark on #1 now.

Is there any danger in using regular (non-resistor) plugs with the secondary resistance that low?
 
I'm under the impression that coils with stock caps have about 32kohm secondary, while coils with ngk caps have about 24kohms, so no problem with D8EA plugs.
 
Thar she blows! Combustion on all four cylinders

Thar she blows! Combustion on all four cylinders

The sweetest sound you ever heard, was a GS starting up on the first attempt...

First thing I did tonight was find the leak in my girlfriends Thermarest, and then I switched into garage clothing and headed to the garage.

It wasn't quite the FIRST attempt because I hadn't primed it long enough, but she fired on ALL FOUR CYLINDERS on the second hit of the starter. Shut down, start up, repeat. Run it up and down the laneway, park it, let it sit. Starts up! :dancing:

Turns out the bad plug cap was the fly in the ointment. Goes to show that you need to check, double check, and sometimes, triple check.

I think I can call it a success, and end the thread.

Thanks for all of the suggestions. Each and every one was investigated and seen through. Now it's time to move on to another highest idle and vacuum synch. I only have two weeks to get it ready for a May 5th ride.

Wish me luck.
 
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