I sold my karts so have two MYCHRON4 units for sale. Both look and work great. Asking $250 obo for each “package” which will include the dash display unit (with a brand new battery installed), the RPM sensor, Temp Lead and the Lap Counter Sensor. The Temp sensor lead does not have the part that actually goes into the engine, just the lead and connector. The water temp sensors I had went with the engines on the sold karts. You can buy temp sensors online for water temp, EGT, etc. so you’ll be able to pick the temp sensor you want. I have two of these packages for sale and the price includes shipping within the continental U.S.
To sell separately, I have one air cooled engine Temp Sensor ($25) that screws onto the cylinder head under a spark plug. I also have one white box Lap Timer Beacon transmitter ($25) and one USB data downloader ($25).