By: news (offline) Tuesday, 09 July 2013 @ 07:29 AM ICT
Adjusting idle on a fuel injection engine is as simple as it was on a carburetor. On most throttle bodies of EFI engines you can find a screw that adjusts air bypass.
But the problem with a Honda is that they hide this screw behind an aluminum prop which they insert into the screw hole to seal it. So if you want to adjust the idle on a Honda Click 125i you will need to drill a small hole in the aluminum prop and carefully pull it out.
If you didn't change anything on the motorcycle (changed air-filter, exhaust pipe, or anything else related to the engine) and your idle is too low, it usually is an indication of another problem.
By: news (offline) Tuesday, 09 July 2013 @ 08:29 AM ICT
One possible reason why your idle speed is too low is that there is a build up of carbon in your throttle body. This can easily happen if you use gasohol fuel, fuel mixed with ethanol have a different burning rate than regular fuel (100% Benzine/Petrol). Because it's possible that your ignition is not correctly set for ethanol fuel, because of this the combustion/fuel burn will create more carbon residue which can find its way into the throttle body.
See the example of a throttle body of a BMW 650cc single... You can easily clean the carbon with a toothbrush and some throttle cleaner and your idle will be back to normal...