KT4B Thermo-Bob Kit
$129.95 – $134.90
This kit is for 2016-2018 KTM450 SX-F and XC-F, as well as the 2016-2018 Husqvarna FC450 and FX450.
Description
The KTM and Husky 450s are one of the most popular choices as a snow bike, but they have no factory thermostatic control – so coolant temps can vary widely. The EFI system’s temperature sensor sees cold coolant and overfuels, thinking the bike is constantly in ‘warm-up’ mode. The Thermo-Bob is a machined aluminum housing with a 180°F (82°C) thermostat inside, and modifies your cooling system to operate like automotive systems have for decades… keeping coolant flowing all the time through the engine, but not through the radiators until it is up to a selected temperature.
A full technical write-up when used on a Kawasaki KLR650 can be found here.