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Steve Saunders Goldwing Forums > Forums > Goldwing Technical Forum > GL1100 Bye Bye Knocks and Clangs

GL1100 Bye Bye Knocks and Clangs  Rate Topic  
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 Posted: Sat Oct 3rd, 2009 02:09 am 1st Post
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goldwing randy



Joined: Sat Aug 22nd, 2009
Location: Jerome, Idaho USA
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Hi All ,  i bought my first goldwing 2 months ago and have been fighting a knock that comes in at 3000 rpm when warm. i have done sea foam, decarbon, carb sync, tune up. lots of stuff i read off this great site.  anyway i found that my vacuum advance that is fed off carb. #3 had a leak in the diaphram. i thought maybe this leak might be leaning out #3 or engine was getting to much advance.  anyway i disconnected it and 90% of my noises and clangs are gone what a different bike. i connected it back up because i could not believe it and all the noise came back. i think these bikes have to much advance for todays fuel. does anyone make recurved advances for these? i would love to here your feedback and try this if all else has failed.

Last edited on Sat Oct 3rd, 2009 02:15 am by goldwing randy



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 Posted: Sat Oct 3rd, 2009 02:31 am 2nd Post
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k1w1t1m



Joined: Wed Aug 13th, 2008
Location: Centerton, Arkansas USA
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I too have been battling the same knock. 20,00 miles later and it's still the same, though on the good side, it's no worse. I am going to try your remedy tomorrow.



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 Posted: Sat Oct 3rd, 2009 12:38 pm 3rd Post
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DaveO430



Joined: Thu Nov 1st, 2007
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You can make the vacuum advance adjustable. There is a plastic plug in the end of the vacuum pot. With an 1/8" or 3mm drill bit drill out the plug and there are threads in the pot. You will need to remove the cover from the back of the advance assembly to find a starting point for the adjustment. Put an approx. 1' or 25mm long 5mm screw in the hole, hold the advance all the way clockwise and run the screw in until it starts to move the advance. You would need the clear timing hole cover and a timing light to do it properly but you could ride, stop and adjust to get it set to suit you. It doesn't take much adjustment to make a difference, about 1/4 turn increments should do it then put some sealer on the screw to keep it from moving and seal the vacuum.



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 Posted: Fri Apr 2nd, 2010 12:10 am 4th Post
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goldie4ever



Joined: Tue Sep 1st, 2009
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Can someone post a pic of the location with closeup pic as to where the vacuum advance is on a GL1100i

Thanks guys



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 Posted: Mon Sep 5th, 2011 06:09 pm 5th Post
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scodo68

 

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I did what the op did and my knock is gone! I pluged the line back in to double check and the knock came back and it did so i left it off and took it for a nice a cool 20 mile ride and it ran like a dream!

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