Gas cap

Information and questions on GL1100 Goldwings (1980-1983)
  • Sponsored Links
Post Reply
Posts: 62
Joined: Sun Jan 25, 2015 8:37 am
Location: knoxville tn
Motorcycle: 1983 GL1100a & 2000 Sportster 1200

Gas cap

Post by T-Rat » Thu Nov 12, 2015 5:57 am

My bike, 83 GL1100, seems to have too much vacuum in the fuel tank after a ride. If I open the fuel cap at idle after the engine has run for a while the engine seems to actually idle smother and the idle speed increases slightly and there is a noticeable whoosh sound from the tank. I went to Honda to get a new cap because I figured the vent in the cap isn't working correctly. The cap is no longer available from Honda (thanks Honda). Does anyone know of a good aftermarket cap?

User avatar
Posts: 3144
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: Gas cap

Post by dingdong » Thu Nov 12, 2015 7:30 am

There is a vent in the cap that gets plugged. Soak it in Seafoam or some other solvent and blow it out. Very common complaint and easily remedied.


A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

User avatar
Posts: 101
Joined: Sun Oct 13, 2013 10:38 am
Location: Mooresville, North Carolina
Motorcycle: 1983 GL1100 Interstate

Re: Gas cap

Post by velvetrider » Mon Nov 16, 2015 12:08 pm

I soaked my gas cap in white vinegar overnight. Blew it out let it dry completely. Works great.
Put Aluminum foil over filler while you do this,,,

Post Reply

Who is online

Users browsing this forum: No registered users and 3 guests