losing spark

[Skeller]

hey guys I have strange things happening.
gs 1000 1979.
cylinders 2.3 running rough if I pull the spark plug boot halfway off either plug. it clears up and runs smoothly.
replaced coils and wires no chsnge?
pulled plugs and tested for spark.
have strong spark???

[Rijko]

Had the same thing on one of my GS1000 bikes.

Turned out to be a broken sparkplug, it would spark nicely but replacing it solved the issue.
You still have points ?

[Rijko]

If 1 and 4 are running right, you could switch plugs with 2 and 3, if the problem switches to 1 and 4 it's the plugs.

[Skeller]

ok, the plugs are nee, bit worth checking them to be sure.
no points, old dyna ignition and stock mechanical advance

[Suzukian]

Those wouldn't be "Knights of Nee" plugs, would they? New plugs can be bad, especially if someone dropped them and the ceramic insulator cracks. Do as the other suggested, and you would be good to go. I'd probably just buy a new set of plugs from somewhere else. When on worked on aircraft, if you dropped a plug, it had to be discarded. At $150 a plug, and 2 per cylinder, you had to be very careful. You wouldn't want a plug fouling up on take off.

[unfocused]

Those wouldn't be "Knights of Nee" plugs, would they? New plugs can be bad, especially if someone dropped them and the ceramic insulator cracks. Do as the other suggested, and you would be good to go. I'd probably just buy a new set of plugs from somewhere else. When on worked on aircraft, if you dropped a plug, it had to be discarded. At $150 a plug, and 2 per cylinder, you had to be very careful. You wouldn't want a plug fouling up on take off.

I sell $1500 spark plugs. If those get dropped we do not use them. This is one of them. Pre-chambered plug used in a V12/16/20 cylinder engines.

plug.jpg

[unfocused]

hey guys I have strange things happening.
gs 1000 1979.
cylinders 2.3 running rough if I pull the spark plug boot halfway off either plug. it clears up and runs smoothly.
replaced coils and wires no chsnge?
pulled plugs and tested for spark.
have strong spark???

I found an issue with poor connections with my GS750/dyna ignition. Re-wired and my problem went away. Also, make sure the black/white wires go to the correct coil. I had diagnosed as a bad dyna pick-up at first. Simple stand-alone wiring. I wired my coils and dyna pick-up with their own 12v, fused source. I also make sure the coil mounts a clean.

[Skeller]

lots of good advise.
it was the spark plugs, they were very fouled.
cleaned them up an she is purring now.
I will watch them, may be running too rich.

[unfocused]

lots of good advise.
it was the spark plugs, they were very fouled.
cleaned them up an she is purring now.
I will watch them, may be running too rich.

You're in Gainsville. Look me up if you need help.

[Suzukian]

I sell $1500 spark plugs. If those get dropped we do not use them. This is one of them. Pre-chambered plug used in a V12/16/20 cylinder engines.

plug.jpg

Ouch!! Not a vehicle I could ever afford!

[unfocused]

Ouch!! Not a vehicle I could ever afford!

On-demand generators...
Shown below is a 1.5 meg powered by a V16 natural gas unit.
The intake is the tube under the large circle, exhaust runs down the "V"
The stainless steel covers prevent serious damage if the plug decides to dip out...
Each cylinder can be rebuilt. The cylinder head weights in at 120# and you can see the blue one has been replaced and one has the v.c. removed.


M0325.jpg

[Suzukian]

Could you imagine one of the plugs popping out, it would really mess you up if you were in it's way.! It's cool they these engines are designed. They are made for the long haul, being able to rebuild each cylinder head is just excellent craftsmanship and engineering excellence in design. There's no virtually carbon to speak of, so these engines can run for unheard of amounts of time.