GL1100 Bye Bye Knocks and Clangs

imported post

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.

imported post

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.

imported post

Can someone post a pic of the location with closeup pic as to where the vacuum advance is on a GL1100i

Thanks guys

imported post

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!