Steve Saunders Goldwing Forums

Steve Saunders Goldwing Forums (https://www.goldwingfacts.com/forums/)
-   Goldwing Technical Forum (https://www.goldwingfacts.com/forums/2-goldwing-technical-forum/)
-   -   82-1100 Interstate Missing? (https://www.goldwingfacts.com/forums/2-goldwing-technical-forum/666909-82-1100-interstate-missing.html)

PAPete 04-09-2019 08:37 PM

82-1100 Interstate Missing?
 
Just started up the 82-1100 after its long winter's nap and went for a 40 mile ride. At idle, when warm, there is an occasional loud knock that sounds like a cylinder is missing. Could be an almost-plugged slow speed jet, I suppose, so I'll put Seafoam in the tank when I gas it up tomorrow.

Question: When I got back, just for grins, I checked the plugs. When I removed the #1 or #2 plug, the engine stumbled but continued running (rough). However, when I remove either the #3 or #4 plug, the engine quits. Could this be an indication that I have weak coil or cable?

Also: The left side plugs were Autolite 4163 plugs and the right side were NGK DPR8EA-9. I'll replace them all with new DPR8's tomorrow, but could that have caused the knocking?

Thanks.

Sprocketrocket55 04-09-2019 09:32 PM

Sounds like a misfire on #1 or #2. Check plug caps

Sent from my SM-J320V using Tapatalk

DaveO430 04-09-2019 10:19 PM

Quote:

Originally Posted by PAPete (Post 5834681)
row.

Question: When I got back, just for grins, I checked the plugs. When I removed the #1 or #2 plug, the engine stumbled but continued running (rough). However, when I remove either the #3 or #4 plug, the engine quits. Could this be an indication that I have weak coil or cable?

.

You already have a dead cylinder on 1 or 2 so when you pull a wire off 3 or 4 you have 2 dead cylinders, it just can't idle on 2 cylinders.

PAPete 04-10-2019 07:17 AM

Quote:

Originally Posted by DaveO430 (Post 5834703)
You already have a dead cylinder on 1 or 2 so when you pull a wire off 3 or 4 you have 2 dead cylinders, it just can't idle on 2 cylinders.

Thanks, Dave. But since it happens to both, do you think it might be the coil?

PAPete 04-10-2019 07:23 AM

Quote:

Originally Posted by Sprocketrocket55 (Post 5834695)
Sounds like a misfire on #1 or #2. Check plug caps

Thanks, Sprocket. Not sure how to check the caps, but if it's in the manual, I'll find it.

DenverWinger 04-10-2019 07:26 AM

Secondary winding on these coils is isolated, so the coil secondary winding depends on BOTH sparkplugs to complete the circuit. If either is compromised, neither will fire. So if you pull the wire off either #1 or #2, both will go dead.

But if you ground the wire you pulled off a sparkplug, this will allow the other plug to resume sparking.

Sprocketrocket55 04-10-2019 08:58 AM

Check continuity with an ohm meter. Should be a high value my gl1200 is 5k ohms

Sent from my SM-J320V using Tapatalk

PAPete 04-10-2019 01:32 PM

Quote:

Originally Posted by Sprocketrocket55 (Post 5834751)
Check continuity with an ohm meter. Should be a high value my gl1200 is 5k ohms

Thank you, Sprocket. I'll check that out after re-testing the spark, per DenverWinger's post (above).

PAPete 04-10-2019 01:38 PM

[QUOTE=DenverWinger;5834747 So if you pull the wire off either #1 or #2, both will go dead. But if you ground the wire you pulled off a spark plug, this will allow the other plug to resume sparking.[/QUOTE]

Thanks, Denver. I'll try that. Now if I can just figure out how to get the double cap cover off those two plugs.....

Sprocketrocket55 04-10-2019 01:43 PM

Might have to warm the rubbers up with a blow dryer to soften them. Then the Caps unscrew from The Wire. Turn the cap while holding the wire counterclockwise to unscrew it, it threads into the wire core

Sent from my SM-J320V using Tapatalk


All times are GMT -5. The time now is 04:21 AM.

Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.

User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.

 
For the best viewing experience please update your browser to Google Chrome