1 Tank vacuum Mon Apr 13, 2015 9:58 pm
desperado
active member
Hey guys
I'm new to the K bikes and actually have never owned anything injected before. I'm on an 85 K100RS and I have an intermittent loss of power that feels like I'm running out of fuel. I notice it mostly in higher gears. At first I thought it could be a clogged injector problem but I've run Techron injector cleaner through. After that I noticed that when I shut the bike off, I can hear air getting sucked into the tank via the gas cap. When I open the gas tank, I can hear a rush of air to equalize the pressure. Is this normal? Is my cap not venting properly? It seems to me that my pump is fighting this vacuum pressure and could be causing my issue. If that isn't it, I'm assuming I need to pull the filter and maybe the pump and go through it. The tank is incredibly clean, but maybe there is some clogging in the lines. Any thoughts?
I'm new to the K bikes and actually have never owned anything injected before. I'm on an 85 K100RS and I have an intermittent loss of power that feels like I'm running out of fuel. I notice it mostly in higher gears. At first I thought it could be a clogged injector problem but I've run Techron injector cleaner through. After that I noticed that when I shut the bike off, I can hear air getting sucked into the tank via the gas cap. When I open the gas tank, I can hear a rush of air to equalize the pressure. Is this normal? Is my cap not venting properly? It seems to me that my pump is fighting this vacuum pressure and could be causing my issue. If that isn't it, I'm assuming I need to pull the filter and maybe the pump and go through it. The tank is incredibly clean, but maybe there is some clogging in the lines. Any thoughts?
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1985 K100RS
Los Angeles, Calif.