1994 SE - Miss, no power, problem checking secondary coil resistance


Information and questions on GL1500 Goldwings (1988-2000)
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goatface
Posts: 2
Joined: Thu May 13, 2010 11:54 am
Location: Big, va
Motorcycle: 1994 GL1500 Aspencade

1994 SE - Miss, no power, problem checking secondary coil resistance

Post by goatface » Wed Aug 01, 2018 10:17 pm



Trying to help my dad diagnose a problem with his bike
it has a miss and no power
can hear it here,


thought at 1st was bad gas, drained the tank, got fresh ethanol free
and it helped some with the idle, but still no power

thinking it may be the carbs, but working our way through things

checking the coil, from the GL1500 Service Manual
---
Disconnect the spark plug caps from the spark plugs.
Measure the secondary resistance through the spark
plug caps for each ignition pair(1-2, 3-4 and 5-6).
---
we got no reading doing this, not even a blip on the meter on any pair
fiddle with it for a while, sure making contact

went ahead and tested the 4P-WHT connector to the coil
and all 3 pairs tested in range at 3.2 ohms

so coil looks good, but now wonder about plug wires
another way to test them? without removing carbs and coil?



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virgilmobile
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Motorcycle: 1988 GL1500 I
Previously owned
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Re: 1994 SE - Miss, no power, problem checking secondary coil resistance

Post by virgilmobile » Thu Aug 02, 2018 7:56 am

Start the bike.slowly pull one plug wire part way off the plug.Listen to the "snapping".There very noticible.Do this one at a time on one side.They should all be the same.I had one poor coil and poor spark causing my miss.
I have a video of this if you need a audio/visual.

DaveO430
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Re: 1994 SE - Miss, no power, problem checking secondary coil resistance

Post by DaveO430 » Thu Aug 02, 2018 7:32 pm

There are small resistors in the plug caps, look up in the cap, use a flat screwdriver to remove the brass piece and the resistor & a spring comes out. Check them individually. Hard to believe they all or 1 on each pair could be bad though. You could replace them with a piece of a nail or some other solid metal piece to test.

goatface
Posts: 2
Joined: Thu May 13, 2010 11:54 am
Location: Big, va
Motorcycle: 1994 GL1500 Aspencade

Re: 1994 SE - Miss, no power, problem checking secondary coil resistance

Post by goatface » Mon Aug 20, 2018 8:21 pm

DaveO430 wrote:
Thu Aug 02, 2018 7:32 pm
There are small resistors in the plug caps, look up in the cap, use a flat screwdriver to remove the brass piece and the resistor & a spring comes out.
thanks
taking awhile to get back to checking, got another meter and smaller leads
checking 2ndary resistance (wire plug to plug)
1-2 = 19.84k
3-4 = no reading
5-6 = 19.96k
books says
Standard: 20.2 to 26.8Kohms

2ndary resistance at the primary terminals
3-4 = 14.1k
which is good by the book

we tried to test the wires for 3 and 4, using a small wire to insert into the hole, don't know if that is right way to go about it
3 = 12.5 to 12.7k, constantly changing or 5.05k steady, no idea why getting 2 different sets of numbers
4 = couldn't get a reading, even with the brass and spring out

so guess 1st thing need in new wires, but am i missing something
can you buy new wire sets?
can someone point me towards what to buy online?

will have to test 2ndary resistance at the primary terminals for 1-2 and 5-6 too
they are a little lower than book



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