Picked up two Honda Ruckus scooters on Marketplace for $800. Both were super dusty and looked like they hadn't been touched in years.
After getting them home, I cleaned everything up and found both fuel tanks were heavily rusted inside.
The 2016 was a big win. The battery took a charge, I cleaned the carb in an ultrasonic cleaner, and to my surprise it fired right up and runs flawlessly.
Now for the 2007. I cleaned the carb and noticed it has larger jets, which wasn't surprising considering the mods on it. I replaced the fuel tank, installed a new battery and fuel pump, and it starts right up too.
The issue is that I had to adjust the throttle slightly open to keep it running, and when I give it a quick blip of throttle, the RPMs hang high for a couple of seconds before slowly dropping back to idle.
Mods I know of:
- Aftermarket intake
- Polini variator
- Larger jets
- Possibly more engine work, but I won't know until I dig into it.
My questions:
- Could I still have some junk in the carb, maybe from dealing with the rusty tank and old fuel system?
- Could it simply be jetted wrong?
- Is it getting too much air from the aftermarket intake?
- Any other common causes of a hanging idle on a modified 2007 Ruckus?
Appreciate any advice. I'm new to the Ruckus world and trying to save these scooters from the dead.