I have a 2002 Vulcan 750. No modifications.
I've been having some running issues lately.
The engine runs well at idle. No issues there. Starts well, hot or cold. The problem is, I've noticed that the slow speed engine torque is way down and when I start from a stop, I have to rev the engine a lot more than I should in order to start from a stop without stalling. The engine sounds almost like it's running on only one cylinder from 1000 rpm up to about 3000 rpm. Once it hits 3000 rpm, it runs fine.
The second issue is that sometimes, when I've been riding it for awhile when I come to a stop, the engine rpms will stay high...around 3000 rpm. If I let the clutch out a bit to drag the engine down, the rpms drop to normal. If I don't let the clutch out, it may or may not drop the rpms down.
I've checked the throttle linkage and it's moving within the full range.
I pulled the float bowls off (not sure if that's the right term but it's the part that is held on by two screws and holds fuel and also accesses the fuel jets) and checked it. There was a tiny bit of sediment in the bowl but nothing bad. Looked very clean.
So, any ideas?
I've ordered a rebuild kit for the petcock. I've been getting some seeping from the petcock so I'm sure it needs new parts inside. Not sure if it could cause the issues that I'm having or not.
Thanks for the help.