1 In tank hose routing 86 k100 Thu Jul 18, 2019 5:23 pm
BRogers
active member
Hi guys, new to BMW repair but fairly adept at basic motorcycle and auto mechanics. Recently I was surprised with a gift of a 1986 k100 that my late father sold to a neighbor. The bike had a failed fuel pump and the common leak. I received the bike back with two tanks (I don't know which is original) that had the pump and sending unit, hoses etc removed. The fuel supply and return are pretty easy to figure out, but on one tank the "vent" line has a open port up near the cap assembly (see picture) that I don't know what to connect to. Can anyone tell me where to connect this to? Also on the other tank, the return side (front) supply has a pipe that end up at 12 o'clock just below the cap flange..The tank I plan on using has a check valve and no hose port so I'm planning on using that tank if I can't find the proper connection. Are these just left open? Thanks in advance, this is the last step to
Get the bike back on the road.
Brent
Get the bike back on the road.
Brent
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1986 k100, 1976 CCM 550Mx, 1975 Yamaha MX250B