I have been experiencing a problem with my 93 VN750. I began to experience idle speeds around 1000 RPM when coming up to stop lights. If I had to sit for any length of time, I had to keep the idle going. Thinking it was the ignition coil acting up on the front cylinder, I replaced the it. After seeing gas on the plugs, I thought they weren't getting spark. Things ran good for 2 days and the low idle is back, along with gas on the plugs (new ones). I checked the plug wires and they all run spark through them. Once I get going, the bike runs fine. Anybody got an idea what it could be?