Join Date: May 2016
Location: Green Bay WI
Year/Make/Model: 2003 Vulcan VN1600 Classic
Color: Pearl Ivory
I agree! Whoever said to spray ten seconds worth of carb cleaner into a running engine obviously has no understanding of flooding the combustion chambers with a mix of Acetone, Xylene, Toluene, Methyl Ethyl Keotone, Propane, and other nasty stuff. Plus, Acetone in spray form is highly combustible (like flame coming back out the intake). Plus the added flood of combustibles in the combustion chamber could raise the cylinder pressure way high.
Cleaning the throttle body butterflies IS worthwhile. One aspect of fuel injected bikes with throttle bodies (depending on how the crankcase fumes are ventilated back into the intake) is the edges of the butterflies can build up a sticky oil like residue that can actually seal the butterfly into the intake, and starve the engine to stall at idle. When that happens, some cleaning of the butterflies in the solution. I know this because it happened on my BMW R1100RS. It ran great, started fine, but would randomly stall at idle. So I cleaned the throttle body butterflies and no more stalling.
All that is needed to clean the throttle body butterflies are some long Q-Tips and isopropol alcohol. Remove the air cleaner, lock the throttle wide open, douse the Q-tip in alcohol, and wipe it around the edges and surfaces of each butterfly. Do both sides and edges of each butterfly, and around the throttle body intake where the butterfly closes against the body. Then use a product like Seafoam or Techron in the fuel tank. That's all that is needed.
When life throws you a curve, lean into it!