Do I Need A New Gas Cap? - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old 05-08-2014, 07:49 PM Thread Starter
Senior Member
 
skyking897's Avatar
 
Join Date: Mar 2014
Location: Sarnia, Ontario, Canada
Posts: 207
Do I Need A New Gas Cap?

Temps hit 80F here today. Went riding with a buddy this afternoon and we stopped for coffee after a while. Got talking to other riders and probably spent about an hour in the coffee shop. Anyway, all this time my black 1100 is sitting out in the sun. As I'm walking across the parking lot towards my bike, I can smell gas and naturally, I check the ground around my bike and see no leaks. So , I'm thinking it's a car parked nearby. While putting on my jacket and helmet, I hear a sssssss sound and bend down to realize it's the pressurized air (from sun heating the tank) escaping from my gas cap and then I can see the vapor rising from around it. I don't think this is normal. At the start of this season, I found the screws loose in the cap and tightened them up. Did I miss something in the cap or is it time for a new one?
skyking897 is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 05-08-2014, 11:07 PM
Member
 
Join Date: Mar 2010
Posts: 84
How full was your tank? It is a vented gas cap, so that's what they do when the inside pressure is too high...vent. I try to avoid filling my tank to the last drop unless I'm planning on riding straight through to the next fill up. While you are at it, make sure the screws in the bottom of your cap are tight. They have a habit of coming loose from the factory and taking a swim in your tank.
ridgwayrescue is offline  
post #3 of 10 (permalink) Old 05-09-2014, 12:28 PM Thread Starter
Senior Member
 
skyking897's Avatar
 
Join Date: Mar 2014
Location: Sarnia, Ontario, Canada
Posts: 207
Tank was probably 1/4-1/2 full, so lots of heated air to expand and escape thru the vent. Likewise, I don't like to fill the tank to the very top unless I'm headed out on a ride and know I'm going to be burning up some of that gas. I read about the loose screws in the gas cap on here and made sure they were tight this spring when getting the bike ready for riding season. That was kind of what I was asking, if when I tightened those screws if maybe I did something or might have missed something it the cap.
skyking897 is offline  
Sponsored Links
Advertisement
 
post #4 of 10 (permalink) Old 05-09-2014, 01:37 PM
Member
 
vstardavid's Avatar
 
Join Date: Sep 2013
Location: KY
Posts: 57
You can try this.I remove the ball bearing in my gas cap an it help. Go to repairs.http://sloneservices.com

07 v star 1100 sliverado-Micks ssd kit-sscustom pod kit-cobra pipes.

Last edited by vstardavid; 05-09-2014 at 01:39 PM.
vstardavid is offline  
post #5 of 10 (permalink) Old 05-09-2014, 04:05 PM
Senior Member
 
Join Date: Mar 2014
Location: Smithfield, VA
Posts: 1,090
If you could hear it hissing and see vapors coming up one would assume it was venting as it should. Maybe it was just a combination or factors that caused it to be somewhat extreme.
Summer is offline  
post #6 of 10 (permalink) Old 05-09-2014, 06:22 PM
Senior Member
 
Tadelk's Avatar
 
Join Date: Oct 2012
Location: Alabama
Posts: 252
The gas cap is doing what it was designed to do. It's relieving pressure so you tank don't expand. I have the same problem with my 650 custom. Nothing to worry about my friend.


thanks,
Delkster

Thanks,
Todd
2011 Yamaha V-Star Custom 650 ( XVS650AB )

Southern Cruisers Chapter 017 (Southwest Al.)
Tadelk is offline  
post #7 of 10 (permalink) Old 05-09-2014, 06:51 PM
Senior Member
 
Join Date: Oct 2011
Location: Buffalo NY
Posts: 570
+1 ^

It's normal, it's supposed to vent.

2013 H-D FXS Blackline
2006 V-Star 1100 Classic
1980 XS650 Bob (in progress)
1981 XS650

USMC - 0331 - OEF
BP03 is offline  
post #8 of 10 (permalink) Old 05-09-2014, 08:22 PM
Senior Member
 
Corsair's Avatar
 
Join Date: Mar 2011
Location: Gatineau QC Canada
Posts: 3,650
Garage
As others have said, it's working just fine. Ne pas worry about it.

2009 Stratoliner S

A few things added and more stuff to follow


https://sites.google.com/site/vstar1100kb/
Corsair is offline  
post #9 of 10 (permalink) Old 05-10-2014, 05:31 AM
Senior Member
 
Star56's Avatar
 
Join Date: Nov 2012
Location: Walled Lake Michigan
Posts: 652
It's ok don't smoke !


Sent from Motorcycle.com Free App
Star56 is offline  
post #10 of 10 (permalink) Old 05-11-2014, 02:31 PM Thread Starter
Senior Member
 
skyking897's Avatar
 
Join Date: Mar 2014
Location: Sarnia, Ontario, Canada
Posts: 207
I also have a Goldwing which happens to be a dark color too and I've never seen it do this when parked out in the hot sun. Maybe it doesn't vent thru the cap like the V Star. I'm just afraid it could ignite or worse explode if someone was smoking nearby. I was a good 30-40 feet away from the bike and the gas fumes were real strong. Concensus here is it's normal, guess I'll just make sure I park across the parking lot away from everybody just for my own peace of mind.
skyking897 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

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