With carburated klx’s it’s very common mod to change airbox snorkel or remove airbox lid. Removing the top makes horrific intake noise and exposes airfilter to water and dirt. So i tried the kdx200 snorkel. Actually it was ordered as KLX650 C1 snorkel.
To make sure the EFI can adjust it and engine doesn’t run lean i wired a multimeter to bike own lambda sensor wires under the seat. (the meter shows nothing in the picture as the engine is not running). It seemed to show only millivolts at idle, which would indicate lean, but idle was fine and strong. Also after starting cold engine the meter shows 4,7volts?, but after running for 30seconds or so it started to show ok values, and during driving the values are ok.
Riding the bike like this shows the mixture. 0,3 is lean and 0,8 or higher is rich. It was running over 0, 8 most of the time so its not lean st least. It felt like it adjusted the mixture and readings developed to better the longer i rode it.
it’s best to block the SAI before doing this so lambda shows correct values.
The intake noise is noticably louder and power seems to have increased considerably. It accelerates faster. This has to be one of the best mods ever.
I will check the mixture with wideband lambda in near future.