RM4A Thermo-Bob Kit
$129.95
This kit is for 2005-2007 Suzuki RM-Z450.
Description
The lack of a factory thermostatic control on these bikes has coolant temps varying wildly. These carbureted bikes then have inconsistent jetting. The Thermo-Bob 3 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.
There is also a threaded port in the Thermo-Bob 3 that will accept aftermarket temperature gauges such as the KOSO or TRAIL TECH 1/8-28 BSPP temperature sending units.
The Installation Manual can be found here.
A full technical write-up when used on a Kawasaki KLR650 can be found here.