Join Date: May 2010
Location: Bellingham, WA, United States
Fuel Ignition Problem - flooding?
Hello K-Bike Community -
My 1987 k100 RS is out of commission as of this morning. I am out of ideas and wondering if anyone here has any suggestions. Here's my situation.
Its been rainy the last few days, but this morning its finally starting to dry up. I decide to take the bike to run some errands so i wipe the drizzle off the seat (it was uncovered last night) put the choke on, start the engine -- all is as normal. I back the bike up out of my parking spot, rev the engine ----- and it stalls. weird. ok, try to start again -- no go. Starter turns over but engine won't catch.
Throughout a day of troubleshooting, i have not been able to get the bike to start again. Here's what i've noticed.
Gasoline is pooling in my exhaust; it drips from the joints where the exhaust headers meet the mufflers at a good rate upon trying to start the engine. This is not normal.
My fuel pump is "whirring" like it should. My next thought is plugs.
Upon removing the spark plugs, they're soaked (no surprise). I bake them dry, try again. no start. Gasoline pool is back.
I bake the plugs again and test them for sparks -- i notice that two (forget which two) are not sparking correctly, so i buy 4 new plugs and install.
Engine still won't catch -- perhaps it's the coils, i think. I test the new plugs for sparks, and get consistant sparks on both the 1,4 and 2,3 cylinders, proving both of my coils to be operating correctly.
What do you guys think? The bike ran fine yesterday, but today, my gasoline is not igniting. I have a 3/4 full tank of gas, and I doubt enough water could have entered the system to dilute the gas enough to cause this, but who knows? Could my electical system be comprimised?
Please help -- its always appreciated more than i can express here.
Thanks for reading