Joined
·
4,881 Posts
I'm having an issue that seems to be getting progressively worse. The bike starts fine when cold, whether it's on the battery tender or off and unridden for an entire week, but is difficult starting when warm/hot (like after gas stops). Bike does not missfire or show any negative signs once started. The bike will turn over but just seems to lack the "oomph" to fire.
Bike has 23,000 miles and full service was performed (by myself and a friend) four months ago at 19,500 miles. Valves adjusted. Belts replaced. Several rockers replaced. New plug wires and Denso iridium sparkplugs installed. New fuel filter and internal fuel tank lines. Throttle bodies synced. We attempted to set the TPS but after 45 minutes of monkeying around were unable to--after everything was buttoned up we noticed the voltmeter itself had a broken lead. Bike does idle a bit high--generally about 1500-1600 RPM.
It's not the charging system. We get an excellent reading there.
Battery tests good as well, although it is about 2 years old and I've wondered if it could be bad under load.
I cleaned all the electrical connections around the battery, regulator and starter terminals--no help.
Fuel pump is working and the tank venting seems fine. (and no symptoms once started)
I'm leaning towards a bad starter, battery, or coils. Which of these would perform worse when warm though? What else could I be missing?
Bike has 23,000 miles and full service was performed (by myself and a friend) four months ago at 19,500 miles. Valves adjusted. Belts replaced. Several rockers replaced. New plug wires and Denso iridium sparkplugs installed. New fuel filter and internal fuel tank lines. Throttle bodies synced. We attempted to set the TPS but after 45 minutes of monkeying around were unable to--after everything was buttoned up we noticed the voltmeter itself had a broken lead. Bike does idle a bit high--generally about 1500-1600 RPM.
It's not the charging system. We get an excellent reading there.
Battery tests good as well, although it is about 2 years old and I've wondered if it could be bad under load.
I cleaned all the electrical connections around the battery, regulator and starter terminals--no help.
Fuel pump is working and the tank venting seems fine. (and no symptoms once started)
I'm leaning towards a bad starter, battery, or coils. Which of these would perform worse when warm though? What else could I be missing?