Kawasaki Concours Forum

The C10, aka Kawasaki Concours - The Original => The Bike - C10 => Topic started by: George R. Young on September 05, 2016, 07:45:08 PM

Title: Questionable tankcap vent
Post by: George R. Young on September 05, 2016, 07:45:08 PM
Sunday morning before-breakfast ride, bike comes to a halt after about 7 km. It's just onto reserve but there is surely gas in there. Wouldn't start until I opened the cap, then all was well, filled up, rode home.

Found a good write-up on vent valve removal:
http://forum.cog-online.org/index.php?topic=60228.msg466823#msg466823 (http://forum.cog-online.org/index.php?topic=60228.msg466823#msg466823)
and deleted the lower little valve.
Title: Re: Questionable tankcap vent
Post by: DC Concours on September 05, 2016, 07:53:52 PM
Did you do that mod on your bike now too?

Sunday morning before-breakfast ride, bike comes to a halt after about 7 km. It's just onto reserve but there is surely gas in there. Wouldn't start until I opened the cap, then all was well, filled up, rode home.

Found a good write-up on vent valve removal:
http://forum.cog-online.org/index.php?topic=60228.msg466823#msg466823 (http://forum.cog-online.org/index.php?topic=60228.msg466823#msg466823)
and deleted the lower little valve.
Title: Re: Questionable tankcap vent
Post by: George R. Young on September 05, 2016, 08:19:37 PM
Yes, I pulled out the lower valve and chucked it in the trash. It appears to control air entering the tank and it wouldn't let enough air in when the gas level was low.
Title: Re: Questionable tankcap vent
Post by: MAN OF BLUES on September 12, 2016, 04:31:03 PM
While that does work, just be mindfull when hosing down the bike, or when it torrential rain on it while hot...
The valves purpose was to allow venting, but to also prevent ingress of water at the same time... soooo, that is the downside.

I've always ran with a tank bag covering the filler, so never had the issue, but never had a malfunction of the valve on either of my C10's.