Why won’t my 1999 BMW r1100rs start?
My 1999 BMW r1100rs has been sitting for 6 months, it ran great before. I keep the battery tendered and start he engine once per week and let it run for 5 min. I went on vacation and stopped this process and when I came back in 2 months the bike will not start. It tries, but backfires and dies out after seconds. I drained and replaced the gas, and replaced the spark plugs. Air filter is clean..... any ideas ?
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