Gromit58
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BMW R100 fuel tank air lock
Gromit58 replied to Gromit58's topic in Old Motorbikes, Projects and Restorations
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First big trip out on my 1980 R100. Thought I would test the fuel capacity/mpg. So it's a 22L tank with 5L reserve. I estimated 200 miles would be an ok target. I ran out of fuel on main tank at 180 miles, 1 mile from home. Switched on reserves and nothing but coughing and spluttering but somehow got to the fuel station. Filled up with 17.5L of fuel. So somewhere I'm missing 5L of fuel. Any ideas? Thank you.