March 18th, 2017, 05:29 PM
Joined: Jul 2016
From: Qc, Canada
I Ride: CBR250 MC22, Aprilia RSV 1000, KTM 505 Snowbike/supermoto
pretty sure that if you have 2 fuel tanks you need to connect the vents for the 2nd tank to work properly. If pressure builds up, it must be the reservoir cap vent that is clogged tho.