1 K75 tank Vent line in front of fuel cap Sat Nov 13, 2021 1:03 am
jjefferies
Life time member
Hi all, long background story here and perhaps a short answer. As reported earlier in another thread, my current tank on the Silver K75 has issues with surging when the fuel level is low. So my thought was to build a replacement using the tank from my parts bike. Got all the necessary parts to fix what was broken, i.e. the fuel pump supporting ring (btw, it was cheaper from the dealer USD $11. than after market suppliers), the fuel strainer, fuel filter and connecting lines. BTW, I used the weird (to me) accordion pleated plastic lines sold by EME for connecting the pump-filter-pressure lines. Don't know how it will work out just yet. But definitely different than the usual "submerged in the tank" fuel lines. So I've got it all together and re-integrated into the tank. Will be after I ride it before I know if it all plays together. But the question I wish to ask is that there is one pipe (aluminum) that drops down from the top on this tank just in front of the filler cap. Essentially either the one labeled vent line in this diagram: http://www.motobrick.com/index.php?PHPSESSID=d6fc1ed5a9fa2888023d247b081dfe10&action=dlattach;topic=10105.0;attach=20776;image
or one next to it. As the tanks did morph over the years and this tank is off an unknown (year) bike I'm not at all sure it's the same "vent line". And it is known that some of the tanks would spray returned fuel forward I'm wondering if I should connect a hose to this tube. It appears to have the bulge at the end which a hose would fit over. Unless someone has a meaningful comment to the contrary I'll just try it and see if it works, i.e. doesn't explode or anything. But thought I would post just in case someone wants to respond so they can say "I told you so" later.
I also had fun smoothing out the usual bumps and dents in the side of the tank before spray painting the tank again. On painting tanks I would add that I've decided to use a base coat with a clear coat that has hardener added (the 2000 series of spray cans). It's all but impossible for a DIY person to get decent paint with hardener in the old style here in California. And Nevada is a long way to go to buy paint.
or one next to it. As the tanks did morph over the years and this tank is off an unknown (year) bike I'm not at all sure it's the same "vent line". And it is known that some of the tanks would spray returned fuel forward I'm wondering if I should connect a hose to this tube. It appears to have the bulge at the end which a hose would fit over. Unless someone has a meaningful comment to the contrary I'll just try it and see if it works, i.e. doesn't explode or anything. But thought I would post just in case someone wants to respond so they can say "I told you so" later.
I also had fun smoothing out the usual bumps and dents in the side of the tank before spray painting the tank again. On painting tanks I would add that I've decided to use a base coat with a clear coat that has hardener added (the 2000 series of spray cans). It's all but impossible for a DIY person to get decent paint with hardener in the old style here in California. And Nevada is a long way to go to buy paint.